Table of Contents - RFI Wireless · Australian Patent No. 2010236015 US Patent No. 8,787,827 User’s Manual Digital Signal Processor based Repeater Base Line 5.3.5 Document Number:

User’s Manual

Digital Signal Processor based Repeater

Base Line 5.3.1

Australian Patent No. 2010236015

US Patent No. 8,787,827

User’s Manual

Digital Signal Processor based Repeater

Base Line 5.3.5

Document Number: INS40821-3

Australian Patent No. 2010236015

US Patent No. 8,787,827

DSPBR User’s Manual

Asia Pacific | EMEA | Americas 2

Company Overview

RFI has been serving the needs of the wireless communications market for over 35 years. First founded as a manufacturer of antenna systems, RFI has grown to be a key player in the development, manufacturing and distribution of wireless technology and energy products. Through our extensive network of resellers, systems integrators and retail outlets, RFI is a key supplier to both industry and Government. Our research and manufacturing facilities have talented people, sophisticated test equipment, state of the art software with class leading manufacturing systems and techniques. Additionally, we have in place a quality management program which is certified to ISO9001, environmental management system certification to ISO14001 and occupational health and safety standard AS4801 giving you complete confidence in everything we do. RFI’s products are truly innovative and as a result we are active around the globe taking our Australian designed and manufactured products to key markets in Asia Pacific, the Americas and EMEA regions via offices ‘In-region’ in addition to exporting directly to in excess of 50 countries. One of RFI’s key principals is to remain totally customer focused as we recognise our future depends on the success of our customers. We know that to be chosen as your supplier we must add value to your business and to achieve this we will work hard to deliver the best product when and where you need it and back this up with the very best technical support available



Document Number INS 41978-1 Copyright @ 2014 RF Industries Pty Ltd

First Printing: 5th December 2014

Version Number

Version Date

5.2.0 4th September 2014

5.2.1 2nd December 2014

5.2.2

5.2.3

4th December 2014

5.2.3 13th January 2015

5.2.4 27th January 2015

5.2.5 29th January 2015

5.2.6 9th April 2015

5.2.7 9th September 2015

5.2.8 9th April 2016

5.3 24th April 2016

5.3.1 15th March 2017

5.3.2 06th October 2017

5.3.3 04th December 2017

5.3.4 05th March 2018

5.3.5 12th June 2018 ________________________________________________________________________ ___ Disclaimer

Product part numbering in photographs and drawings is accurate at the time of printing. Part number labels on RFI products supersede part numbers given within this manual. Information is subject to change without notice



Notice The information contained in this document is subject to change without notice. R F Industries Pty. Ltd. makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. RF Industries Pty Ltd shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance or use of the material. All information contained in this manual has been reviewed. However RF Industries Pty Ltd accepts no liability for any omissions, errors or misconstrued information.

© 2014, RF Industries Pty Ltd. All rights reserved. Reproduction, adaptation or translation without prior written permission is prohibited except as allowed under copyright laws. For further information or help with this product contact your nearest RFI sales office or through the following;

Region USA EMEA ASIA PACIFIC

Sales email [email protected] [email protected] [email protected]

Tech Support [email protected] [email protected] [email protected]

Telephone Intl +1 (330) 486 0706 +44 1869 255 772 +61 7 3621 9400

Telephone local 330 486 0706 01869 255 772 1300 000 RFI

Fax Intl + 1 (330) 486 0705 - +61 2 9630 0844

Web rfiamericas.com rfiemea.com rfi.com.au

Note: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions;

(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may

cause undesired operation. The user is cautioned that changes and/or modifications not approved by the responsible

party could void the user’s authority to operate the equipment.

Note:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area may cause harmful interference in which case the user will be required to correct the

interference at their own expense.



Table of Contents

Table of Contents ................................................................................................................................................. 5 1. General 10 1.1 Table of Acronyms ..................................................................................................................................... 10 1.2 Occupational Health & Safety / Work Health and Safety Warnings ........................................................... 11 1.2.1 General Caution ................................................................................................................................ 11 1.2.2 Earth Bonding .................................................................................................................................... 12 1.2.3 High Temperatures ............................................................................................................................ 12 1.3.4 High Voltage ...................................................................................................................................... 12 1.3.5 Electro Static Discharge .................................................................................................................... 13 1.3.6 Laser Class 1 .................................................................................................................................... 13 2. Firmware User’s Licence Agreement 14 3. Product Information 15 3.1 Applications ................................................................................................................................................ 15 3.2 Product Overview ....................................................................................................................................... 15 3.2.1 Sub-rack Frame ................................................................................................................................. 15 3.2.2 DSP technology ................................................................................................................................. 15 3.2.3 Modulation integrity ........................................................................................................................... 16 3.2.4 Web browser configuration and alarm status reporting ..................................................................... 16 3.2.5 Frequency Sub-Bands ....................................................................................................................... 16 3.2.6 Modular Construction ........................................................................................................................ 17 3.2.7 Module Types .................................................................................................................................... 17 3.2.8 Optional Internal uplink and downlink combining ............................................................................... 18 3.2.9 External Duplexer .............................................................................................................................. 18 3.3 Product Specifications ................................................................................................................................ 20 3.3.1 Electrical Specifications (across all sub-bands) ................................................................................. 20 3.3.2 Optional SFP Optical transceivers (used for inter-rack linking) ......................................................... 21 3.3.3 Optional Internal Combiner (8-Way, full frequency agility) ................................................................ 21 3.3.4 Typical AC / DC estimated power consumption figures ..................................................................... 21 3.3.5 Mechanical ........................................................................................................................................ 21 3.3.6 Weights (approximate) ...................................................................................................................... 21 3.3.7 Environmental ................................................................................................................................... 22 3.3.8 Connectivity ....................................................................................................................................... 22 3.3.9 Indicators – CSC Module LCD Display (front panel) ......................................................................... 22 3.3.10 Approvals .......................................................................................................................................... 22 3.3.11 Electrical Compliance ........................................................................................................................ 22 4. Functional Description 23 4.1 General ...................................................................................................................................................... 23 4.2 Sub-rack Frame ......................................................................................................................................... 24 4.3 Modules ..................................................................................................................................................... 26 4.3.1 PILM - PSU In Let Module ................................................................................................................. 26 4.3.2 PSU Module ...................................................................................................................................... 26 4.3.3 CSC – Central Systems Controller Module ....................................................................................... 28 4.3.4 Ref Gen + Aux – Reference Generator Module ................................................................................ 29 4.3.4.1 Frequency Reference Disciplining options; ....................................................................................... 30 4.3.4.2 Inserting the Multi-band cellular modem SIM card ............................................................................ 31 4.3.4.3 SIM card Installation .......................................................................................................................... 31 4.3.5 DSP – Digital Signal Processor Module ............................................................................................ 32 4.3.6 RFFE – RF Front End Module ........................................................................................................... 34 4.3.6.1 Channel Configuration programmability ............................................................................................ 35 4.3.6.2 Typical hardware configuration examples ......................................................................................... 35 4.3.7 RFBE – RF Back End Module ........................................................................................................... 35 4.3.7.1 Channel Configuration programmability ............................................................................................ 35 4.3.7.2 Typical hardware configuration examples ......................................................................................... 35 4.3.7.3 Output power level settings ............................................................................................................... 35 4.3.8 BPFM – Band Pass Filter Module ..................................................................................................... 36 4.3.9 8-Way Internal Combiner Filter Unit .................................................................................................. 36 4.3.10 DSPbR Sub-Rack Frame Architecture .............................................................................................. 39 4.3.10.1 Slot allocation architecture ................................................................................................................ 39 4.3.10.2 Internal up link and or down link RFBE combining ............................................................................ 40 4.3.11 DSPbR Channel Expansion .............................................................................................................. 40



5. Installation 41 5.1 Unpacking .................................................................................................................................................. 41 5.2 Mechanical ................................................................................................................................................. 41 5.3 Electrical and Earthing ............................................................................................................................... 44 5.4 Lightning Protection ................................................................................................................................... 46 5.4.1 The AC Mains .................................................................................................................................... 46 5.4.2 RF Coaxial Cabling ............................................................................................................................. 46 5.4.3 Ethernet connection .......................................................................................................................... 46 5.5 Antenna to Antenna Isolation ..................................................................................................................... 46 5.6 External / Internal Alarm Interface .............................................................................................................. 48 6. Start Up 50 6.1 CSC Front Panel Power On “ Active” and Alarm LED’s ............................................................................. 50 6.2 LCD Display ............................................................................................................................................... 51 6.2.1 Activating the selected Reset Menu: ..................................................................................................... 52 6.3 General Connectivity .................................................................................................................................. 53 6.3.1 Ethernet TCP/IP Connectivity ............................................................................................................ 53 6.3.1.1 Web Browser GUI (Graphical User Interface) ....................................................................................... 53 6.3.1.2 IP Address ......................................................................................................................................... 54 6.3.1.3 Determining the current Ethernet address settings ........................................................................... 55 6.3.2 Log in Page ....................................................................................................................................... 55 6.3.3 User Name and Password Levels ..................................................................................................... 55 7. Configuration 56 7.1 GUI Tree .................................................................................................................................................... 57 7.2 Status Pages .............................................................................................................................................. 58 7.2.1 Status - Current Hardware................................................................................................................. 58 7.2.2 Status – System Alarms (rack overview) & RSSI .............................................................................. 59 7.2.2.1 Status-- Rack Alarms (rack specific detail) ...................................................................................... 60 7.2.2.1.1 Status – Rack Alarms / External Alarms .......................................................................................... 60 7.2.2.1.2 Status – Rack Alarms / Slot & Module Alarms ................................................................................. 60 7.2.2.1.3 Status – Rack Alarms / Power Alarms: ............................................................................................ 61 7.2.3 Status - Version Register .................................................................................................................. 61 7.2.4 Status - Racks ................................................................................................................................... 63 7.2.5 Status – Channels Overview ............................................................................................................. 64 7.2.6 Status - Communications .................................................................................................................. 66 7.2.6.1 Ethernet ............................................................................................................................................. 67 7.2.6.2 SNMP Trap Alarm Reporting ............................................................................................................. 67 7.2.6.3 Modem Settings ................................................................................................................................ 68 7.2.6.4 Alarm Reporting ................................................................................................................................ 69 7.2.6.5 Serial Port.......................................................................................................................................... 69 7.2.6.6 Email Alarms ..................................................................................................................................... 69 7.2.7 Status - System ......................................................................................................................................... 70 7.2.7.1 Racks ................................................................................................................................................ 70 7.2.7.2 System .............................................................................................................................................. 70 7.3 Configuration Pages................................................................................................................................... 71 7.3.1 Configuration - Racks ........................................................................................................................ 71 7.3.1.1 Single (Master) Rack Configuration ................................................................................................... 71 7.3.1.2 Multi-Rack Configuration ................................................................................................................... 72 7.3.2 Configuration – Channels .................................................................................................................. 73 7.3.3 Configuration – Communications ...................................................................................................... 75 7.3.3.1 Ethernet Settings ............................................................................................................................... 76 7.3.3.2 Modem Settings .................................................................................................................................. 76 7.3.3.3 SNMP Trap Alarm Reporting ............................................................................................................. 77 7.3.3.4 Alarm Reporting ................................................................................................................................... 77 7.3.3.5 Serial Port ............................................................................................................................................ 77 7.3.3.6 Email Settings ...................................................................................................................................... 77 7.3.4 Configuration – System .............................................................................................................................. 78



7.3.5 Alarm Matrix ............................................................................................................................................... 80 7.3.5.1 Alarm Matrix - Reference Generator Module ..................................................................................... 81 7.3.5.2 Alarm Matrix - RFFE Modules ........................................................................................................... 82 7.3.5.3 Alarm Matrix - RFBE Modules ........................................................................................................... 83 7.3.5.4 Alarm Matrix – DSP Module .............................................................................................................. 84 7.3.5.5 Alarm Matrix – Fibre Expansion Module ............................................................................................ 85 7.3.5.6 Alarm Matrix – PSU ........................................................................................................................... 86 7.3.5.7 Alarm Matrix – Controller Module ...................................................................................................... 87 7.3.5.8 Alarm Matrix – External Alarms ......................................................................................................... 88 7.3.5.9 Alarm Matrix – Periodic SNMP .......................................................................................................... 89 7.4 Maintenance .............................................................................................................................................. 90 7.4.1 Features Management ...................................................................................................................... 91 7.4.2 Files Management ............................................................................................................................. 92 7.4.2.1 Uploading firmware .............................................................................................................................. 93 7.4.2.2 Filter profiles ...................................................................................................................................... 93 7.4.2.3 Downloading Configuration Files ....................................................................................................... 93 7.4.2.4 Generate History Log ........................................................................................................................... 94 7.4.3 User Management ............................................................................................................................. 94 7.4.4 Test Alarms ....................................................................................................................................... 95 7.4.5 Alarm Event Log ................................................................................................................................ 96 7.4.6 System Checkpoint ........................................................................................................................... 97 7.4.7 Restart ............................................................................................................................................... 98 7.5 Logout ........................................................................................................................................................ 98 7.6 HELP Screens ........................................................................................................................................... 99 8. UPGRADING FIRMWARE 100 9. SNMP 113 9.1 Main Features: ......................................................................................................................................... 113 9.2 Configuration Procedure: ......................................................................................................................... 113 9.3 Testing SNMP trap: .................................................................................................................................. 114 9.4 MIB Message Format: .............................................................................................................................. 114 10. Multi-Carrier Power Amplifier (MCPA) 118 10.1 Multi-Carrier Power Amplifier (MCPA) Operation ..................................................................................... 118 10.2 Performance ............................................................................................................................................ 118 10.3 Power levels per carrier ........................................................................................................................... 118 10.4 Number of carriers ................................................................................................................................... 119 10.5 Configuring the MCPA Feature ............................................................................................................... 120 11. Maintenance 123 11.1 Access ..................................................................................................................................................... 123 11.2 Module Replacement ............................................................................................................................... 123 11.2.1 Module replacement self-check ....................................................................................................... 123 11.3 PSU replaceable fuses ............................................................................................................................. 123 11.4 Fans and Fan filters ................................................................................................................................. 123 11.5 RF input and output port identification ..................................................................................................... 124 11.6 DSPbR spare modules and ancillary equipment part numbers ................................................................ 125 11.7 Recommended minimum spares listing ................................................................................................... 128 12. FAQ 129 12.1 Connectivity: ............................................................................................................................................ 129 12.1.1 TCP/IP Ethernet connection ............................................................................................................ 129 12.1.2 GUI Interface - Compatible Web browser programs ........................................................................ 129 12.1.3 Master Slave DSPbR configuration ................................................................................................. 129 12.1.4 RS232 and USB Interface ............................................................................................................... 129 12.1.5 SNMP Interface ............................................................................................................................... 129 12.1.6 Cellular Modem ............................................................................................................................... 129 12.1.7 Configuration via SMS ..................................................................................................................... 129



12.2 DSPbR Modules....................................................................................................................................... 130 12.2.1 General ........................................................................................................................................... 130 12.2.2 RFFE ............................................................................................................................................... 130 12.2.3 RFBE ............................................................................................................................................... 130 12.2.4 Setting the Uplink and Downlink RFBE RF output power levels ...................................................... 130 12.2.5 Ref Gen + Aux ................................................................................................................................. 131 12.2.6 External 10MHz clock reference: ..................................................................................................... 131 12.2.7 CSC ................................................................................................................................................. 131 12.2.8 DSPbR Slot Architecture ................................................................................................................. 132 12.2.9 Channel Gating Threshold Configuration Settings .......................................................................... 133 12.2.10 DSPbR Channel / Band Expandability ............................................................................................ 133 12.2.11 Alarm Communication and Management ........................................................................................ 134 12.2.12 Temperature Measurement and front mounted cooling fans: .......................................................... 134 12.3 AC Mains Power Supply .......................................................................................................................... 135 12.4 DC Power Supply ..................................................................................................................................... 136 12.5 Earthing .................................................................................................................................................... 136 13. Appendices 137 14. Supporting Information 143 15. User Notes 144



Lists Of Figures and Tables

Figures

FIGURE 1: TYPICAL DSPBR FUNCTIONAL BLOCK DIAGRAM 19 FIGURE 2:SUB-RACK FRAME MODULAR CONSTRUCTION 24 FIGURE 3:DSPBR FRONT VIEW 25 FIGURE 4: DSPBR REAR VIEW 25 FIGURE 5: REMOVAL OR REFITTING OF DSPBR AC PSU 27 FIGURE 6: AC PSU FUSE LOCATION. 27 FIGURE 7: CSC CONTROLLER 28 FIGURE 8: REF GEN + AUX MODULE 29 FIGURE 9: REF GEN MODULE INTERFACE 31 FIGURE 10: DSP MODULE 32 FIGURE 11: DSP MODULE WITH 2 X FIBRE INTERFACE (FITTED TO BOTH SIDE A AND B) 33 FIGURE 12: DSP FIBRE PORT ORIENTATION. 33 FIGURE 13: DSP + FIBRE EXPANSION BOARD BLOCK SCHEMATIC. 34 FIGURE 14: RFFE + BPFM BOLTED TOGETHER 34 FIGURE 15: BOLTING BPFM ONTO RFFE OR RFBE 36 FIGURE 16: 2 X 8-WAY COMBINER FILTER BLOCKS MOUNTED INTO A DSPBR SUB-RACK FRAME. 36 FIGURE 17: REMOVAL OF 8-WAY COMBINER FILTER BLOCK FROM DSPBR SUB-RACK FRAME. 37 FIGURE 18: SLOT ALLOCATION ARCHITECTURE 39 FIGURE 19: DSPBR DIMENSIONS FRONT VIEW 41 FIGURE 20: DSPBR DIMENSIONS REAR VIEW 42 FIGURE 21:DSPBR DIMENSIONS LEFT HAND SIDE VIEW 42 FIGURE 22: DSPBR DIMENSIONS RIGHT HAND SIDE VIEW 42 FIGURE 23: DSPBR DIMENSIONS TOP VIEW 43 FIGURE 24: DC 24 OR 48VDC PHOENIX HDFK 16A CONNECTOR TERMINATION BLOCK 44 FIGURE 25: AC MAINS TERMINATION IEC320-C14 SOCKET CONNECTOR (240VAC) AND M6 EARTHING STUD. 45 FIGURE 26: ANTENNA - TO - ANTENNA ISOLATION GRAPH. 47 FIGURE 27: EXTERNAL/ INTERNAL ALARM INTERFACE 48 FIGURE 28: ALARM INTERFACE CONNECTOR PINS. 48 FIGURE 29: CSC FRONT PANEL LCD DISPLAY, MODE BUTTON AND LED’S 50 FIGURE 31: EXAMPLE OF RFBE’S PERFORMANCE WITH 12 CARRIERS 119 FIGURE 32: EXAMPLES OF RFBE’S WITH 8 AND 4 CARRIERS RESPECTIVELY 119 FIGURE 33: FAN COVER REMOVAL 123 FIGURE 34: USER DEFINED YELLOW LABEL MARKING SYSTEM 124

Tables

TABLE 1: ACRONYMS 10 TABLE 2: DSPBR GENERIC ELECTRICAL; MECHANICAL AND ENVIRONMENTAL SPECIFICATIONS 22 TABLE 3: 8-CH INTERNAL COMBINER FILTER, PER CARRIER MAX POWER SETTINGS 38 TABLE 4: DBM TO RF POWER IN WATTS - CROSS REFERENCE 38 TABLE 5: CONTROLLER LCD RESET AND CHECK POINT OPTIONS. 52 TABLE 6: DSPBR MODULE AND PARTS TABLE 127 TABLE 7: RECOMMENDED MINIMUM SPARES LISTING 128



1. General

1.1 Table of Acronyms

ALC Automatic Level Control

BPF Band Pass Filter

BPFM Band Pass Filter Module

BTS Base Transceiver Station

CAN Controller Area Network

CAT5/6 Category 5 or 6 (Ethernet cable – standard wiring)

CLI Command Line Interface

CSC Central System Controller

DL Downlink

DSP Digital Signal Processor

DSPbR Digital Signal Processor based Repeater

ETSI European Telecommunication Standards Institute

GPS Global Positioning System

GUI Graphical User Interface

IF Intermediate Frequency

MS Mobile Station

PSU Power Supply Unit

PILM Power Inlet Module

PIP Peak Instantaneous Power

Ref Gen Reference Generator

Rev Revision

RF Radio Frequency

RFBE Radio Frequency Back End

RFFE Radio Frequency Front End

RSSI Receive Signal Strength Indication

RTC Real Time Clock

RU Rack Units

Rx Receiver

Tx Transmitter

UL Uplink

VSWR Voltage Standing Wave Ratio

Table 1: Acronyms



1.2 Occupational Health & Safety / Work Health and Safety Warnings

1.2.1 General Caution

Only a suitably qualified person should be allowed to install and commission this equipment after comprehending and becoming familiar with all the safety and installation instructions contained in this User’s Manual. It will be assumed that a qualified person will have a fundamental knowledge of the objectives and use common sense where safety warnings are not necessarily explicit. The unit is heavy and appropriately considered a two-man lift. Handles are provided to the front of the equipment to assist in removal of the DSPbR from the packaging and during installation. On unpacking the equipment, familiarise yourself with equipment, reading and following all warning labels attached to the equipment. Please ensure that the warning labels are kept in a legible condition and replace if necessary. Ensure all general, regional and site-specific installation and safety regulations are adhered to when working on high voltage installations, as well as regulations covering use of tools and personal protective equipment. It is the responsibility of the network operator or service provider to have in place and implemented a legally compliant Occupational Health and Safety (OHS) / Work Health and Safety (WHS) law as applicable, detailing prevention measures to avoid health hazards which may be associated with radiation from the antenna(s) connected to this equipment. Please ensure familiarisation and compliance to country specific regulations on RF exposure. Ensure all adjustable repeater settings comply with intended use and applicable National, State and Regional regulatory requirements. Please note that only the authorised licence holder for the respective frequencies or frequency range is allowed to operate this equipment. Ensure that access to this equipment is restricted to qualified personnel only. There is no On/Off switch on the unit – it becomes active as soon as AC or DC power is connected via the provided AC mains cable or DC power source. Do not allow the DSPbR or any associated equipment to become wet or to be subjected to a corrosive environment, humidity or temperatures outside the specified operating ranges. Do not operate the unit near any flammable substances or in a flammable atmosphere. Ensure that all RF termination connectors are fully mated and hand tightened. Use this equipment only for the purpose specified by RF Industries Pty Ltd. Do not carry out any modifications or attempt any module repairs. All modules in this DSPbR are not intended to be field repairable and should be returned to RF Industries for service or repair. When engaged in upgrading or maintaining the DSPbR, please note that the RF Front End and RF Back End modules are “Hot Swappable” accessible from the rear of the sub-rack frame using a suitable module extraction tool. Should an upgrade or maintenance require any further deconstruction or access to the equipment, the AC or DC power supply should be disconnected and isolated.



1.2.2 Earth Bonding

An equipment earthing / grounding M6 threaded stud is provided at the rear of the sub-rack frame located on the PILM (Power Inlet Line Module). The DSPbR must be adequately bonded to the common 19” rack earth/grounding connection point within the 19” rack frame/cabinet using the M6 stud provided.

1.2.3 High Temperatures

Owing to probable power dissipation within the equipment, the exposed rear portion of the equipment may reach relatively high temperatures. Please take the necessary precautions when servicing or removing any RFBE modules, filters, transmitter combiners or unscrewing any terminated RF coaxial cables.

1.3.4 High Voltage

The DSPbR has been tested as compliant to AS/NZS IEC 60950. When operated from an AC power source this unit complies with the Australian AS/NZS 60950 equipment safety standard. There is limited surge protection built into the PSU of the DSPbR, however additional site specific lighting protection, voltage surge protection and earth bonding may be required to reduce the risk of damage. Regarding external antennas connected to the DSPbR, we recommend the use of adequate coaxial lighting protection and earth bonding through grounding kits on the RF feeder cables prior to termination into the respective RF termination connectors on the DSPbR repeater. AC or DC mains should also be afforded surge protection, along with the IP Ethernet connection into the repeater.



1.3.5 Electro Static Discharge

Although the modules and exposure of the interconnect sockets / pins have been designed to significantly reduce the risk of electro static discharge (ESD), precautions must be observed during installation and maintenance to protect all the modules within the equipment. The Ref Gen + Aux module is not as protected as other modules for ease of access to the SIM Card holder. Therefore this module should be removed, handled and re-installed in an electro-static controlled environment and using equipment that is purpose designed to reduce the risk of electrostatic discharge onto the module.

1.3.6 Laser Class 1

Where the DSPbR is configured for use with connectivity using fibre optic cables, the Small Form Pluggable (SFP) Fibre Optic Transceivers use Class 1 lasers which are inherently safe under reasonable conditions of operation. We recommend that this DSPbR User’s Manual is made available “on site” to maintenance personal who are required to maintain and service the equipment.



2. Firmware User’s Licence Agreement

This statement must be read in its entirety prior to the loading or use of the Firmware provided by RFI. Introduction. By loading any product related Firmware you agree without reserve with all the conditions as detailed in this RFI Firmware License Agreement. The term “Firmware” for the sake of this statement includes all software or firmware upgrades, either as a new installation, revision, patches or upgrades. Any reference to software, for the purposes of this license agreement, will therefore be included in the term Firmware. RFI refers to the Australian registered company RF Industries Pty Ltd. The copyright of all Firmware relating to this product remains the property in whole of RFI and is therefore protected by the respective international copyright or trademark laws. You agree that by using and or downloading any of the DSPBR product specific Firmware, that you have fully understood and agree to comply and be bound by the all of the conditional requirements as detailed in this Firmware License Agreement and accept the disclaimer thereof. RFI reserves the right to update and change, from time to time, any attribute, function, feature and in the main any content of the Firmware and any documentation attributed and referenced to the Firmware underwritten by this Firmware License Agreement without notice to existing users. The use of this Firmware is non-exclusive and non-sub licensable, nor does it give the user the right to re-sell, lease, loan, distribute, or transfer the Firmware nor the rights thereof. This Firmware License Agreement grants or implies no right, title, or interest in any intellectual property owned or licensed by RFI. Support and Firmware Updates. RFI may elect to provide you with customer support and/or Firmware upgrades, enhancements, or modifications for the RFI Firmware at its sole discretion, and may terminate such support at any time without notice to the user. RFI may change, suspend, or discontinue any aspect of the Firmware at any time, including the availability of any Firmware feature, database, or content. From time to time RFI may provide notice through the RFI web site of any available updates or Firmware revision downloads.

Fees. RFI reserves the right to charge fees for upgrades or revisions of the applicable Firmware download. Disclaimer. Use of any Firmware enabling operation of the DSPBR or providing support for the DSPBR is at the user’s discretion and risk. RFI will not be held responsible or liable for any damage or loss that results from the downloading and or use of the Firmware or incompatibilities or other problems experienced as a result of any combination of operating system(s), firmware, or software the user may use. RFI will not be held responsible or liable for any inaccuracies, completeness or inadequacy regarding the Firmware as the basis of the provision of the Firmware is on a “fit-for-purpose, best effort” approach. RFI will not be liable to the user for claims and liabilities of any kind arising out of or in any way related to the use of the Firmware by the user or any third party. The failure of RFI to exercise or enforce any right or provision of this Firmware License Agreement shall not constitute a waiver of such right or provision.



3. Product Information

3.1 Applications

The RF Industries DSPbR (Digital Signal Processor based Repeater) is designed as a stand-alone or networked, multi-channel, multi-band expandable rebroadcast repeater/booster used for extending RF coverage in either outdoor or numerous types of indoor or below ground applications. Fibre connectivity provides expandable connection between chassis where more than one DSPbR chassis is required at a site to accommodate the number of required channels in a band or across a number of bands. Fibre connectivity facilitates master to slave or master to multiple slave topologies extending coverage wherever fibre connectivity permits.

The DSPbR is ideal for cost effective expansion of an RF network coverage boundary or to provide multi-site coverage footprint from a single site infrastructure, reducing the need for large-scale site developments with dedicated backhauls.

3.2 Product Overview

The DSPbR rebroadcasts RF carriers without demodulating the signal, providing modulation transparency, therefore not interfering with the rebroadcast signals modulation integrity. The DSP platform provides selective channel bandwidth adaptability ensuring spectrally clean transmission and rebroadcast of both analogue and most digital modulation schemes. Adjustable per-channel, high power transmitter output power or in lower output power MCPA (Multiple Carrier PA) mode enables this repeater platform to be highly versatile and adaptable for almost any RF network coverage scenario. The DSPbR is modular in design and upgradability providing the basis for a cost effective future proof roadmap. The “on-board” GUI (Graphical User Interface) provides the user with access to the configuration, status and alarming pages of the DSPbR without the need for additional software.

3.2.1 Sub-rack Frame

The DSPbR is built into a standard 19” 4RU aluminium sub-rack frame with a depth of 440mm including top, bottom and side covers. The respective mandatory and optional modules plug into a centrally located motherboard from the front and rear of the frame. Slide rails are provided for each module to assist in correctly locating the motherboard. Four 19” rack mount M6 fasteners mount the sub-rack into a standard 19” rack frame. Front mounted handles are provided of ease of installation. The finish on the front of the DSPbR is painted black and conforms to RFI front mounted panel layout formats.

3.2.2 DSP technology

The DSPbR uses Digital Signal Processing technology, replacing traditional fixed hardware used in IF filtering such as crystal filters with software defined digital filtering providing flexibility and optimisation. When a migration of technology or operational channel bandwidth is required this is simply achieved through a configuration change via the web based browser interface where a number of the specifications can be re-configured such as channel filter profile, uplink and downlink frequencies, output power or gain. The DSP capability allows for up to 8 bi-directional channels in a single sub-rack frame. Up to six individual configuration dependent bands can be accommodated, each band having a fixed bandwidth of 20MHz. The frequency agility of the DSPbR within the predetermined band of the respective RF module allows for either “off-air” rebroadcast of the incoming frequency or translation of the incoming frequency to a different rebroadcast frequency across a number of bands and channels. The DSPbR can be used for frequency shifting or bridging a number of channels to a second DSPbR unit remotely sited from a host BTS to extend the BTS frequencies without facing input to output isolation problems when broadcasting on the same frequency. The major advantage in not having to rebroadcast “on frequency” is that the gain through the repeater can be considerably increased and the cell extension afforded greater coverage and signal strength.



A flexible feature using this technology is the choice of setting receiver gating on a respective channel. This can be set to open above a fixed dBm input level, or at a pre-determined level above a dynamic input noise level or simply disabled keeping the receiver channel open.

3.2.3 Modulation integrity

The DSPbR does not demodulate the rebroadcast signal and the modulated carrier integrity is left unchanged whether encrypted or not, effectively allowing modulation scheme and multiplexing methodology transparency. A library of IF Filter profiles, ensure optimised group delay characteristics in digital modulation schemes without compromising emission standards.

3.2.4 Web browser configuration and alarm status reporting

Customer specific repeater configuration is possible via two RJ45 IP Ethernet sockets from either the front or rear of the sub-rack. This can be achieved either locally with the use of an Ethernet jumper cable or remotely, having connected the DSPbR to an IP Ethernet network. Two levels of access are provided, which are user name and password protected. The first elementary level provides access to the status screens only. The second level provides access to all screens, which include status, configuration, and maintenance screens. Entering the factory default IP address will bring up a log in screen and once the required level of user name and password has been entered, the relevant screens will appear in the navigation menu. Configurable channel specific settings include uplink and downlink channels, receive and rebroadcast frequencies across band or in-band as required, selecting technology applicable channel bandwidth profiles, uplink and downlink RF output power levels, uplink and downlink channel gain and optional styles of receiver gating. Names or references can be allocated within specific naming fields within the GUI to input and output frequencies of the respective uplinks and downlinks.

3.2.5 Frequency Sub-Bands

The DSPbR Series repeater is designed for configuration in a number of popular PMR/LMR frequency bands, including VHF, UHF and 7/800MHz. Frequency bands currently available include;- 132-152MHz, 150-174MHz (20MHz sliding window), 403-420MHz, 410-430MHz, 430-450MHz, 450-470MHz, 470-490MHz, 480-500MHz, 500-520MHz, 746-766MHz, 786-806MHz, 805-825MHz and 850-870MHz.

RF Industries may add frequency bands as part of our ongoing product development program.



3.2.6 Modular Construction

The DSPbR hardware is modular in construction and designed to provide exceptional installation and channel expansion efficiency, allowing hot-swappable hardware upgrades to increase the number of repeater channels up to a maximum of eight bi-directional channels or up to 16 separate transmitters in a single 19” 4RU sub-rack frame. The RFFE and RFBE modules are bolted to their respective BPF modules or TL Module, slid into the mating connectors of the centrally located motherboard via top and bottom mounted guide rails within the allocated slot and screw fastened into the sub-rack frame using the module fastening facility.

3.2.7 Module Types

The DSPbR uses the following module types;

PILM - AC or 24V / 48V DC Power Inlet Module

PSU - AC or 24V / 48V DC Power Supply Unit

Chassis - with integral backplane

CSC - Central System Controller

DSP - Digital Signal Processor

Ref Gen + Aux– Reference Generator + Auxiliary Module, includes GPS and Cellular Modem

RFFE – RF Front End (band specific)

RFBE – RF Back End (band specific)

BPFM – Band Pass Filter Module (band specific, bolted to input of RFFE, and the output of RFBE modules)

Cxxx-8 Combiner Filter Unit (band specific / optional) Each RFFE and RFBE is limited to a 20MHz operating bandwidth. One RFFE can source received frequencies to a number of RFBE’s. Each RFBE is capable of rebroadcasting channels with typical channel bandwidths of 12.5 or 25 kHz. Other channel bandwidths can be provided upon request. At UHF and 7/800MHz, band-specific BPFM’s connect directly onto the input of the RFFE modules, and also on the output of the RFBE modules. The VHF sub-band RFFE and RFBE modules have a built in BP Filter Module and are therefore not detachable. These BPFMs provide sub-band specific RF filtering for the respective RFFE modules’ inputs, and RFBE modules’ outputs. An optional 8 channel internal combiner filter block replaces individual BPFM modules, bolting directly onto the respective “n” quantity of RFBE modules it is to combine. There are no internally fitted coaxial interconnect cables in the DSPbR. All modules are provided with guided slide fit and fasten connectivity, with connectors between interconnected modules and the internal chassis backplane mating and being aligned by the correct insertion of the modules in their chassis slide rail, and corrected seated by the modules fastening screws being tightened. An RFFE module is partitioned into Side “A” and Side “B”. Two separate RFFE’s boards can therefore be accommodated within a single RFFE module. Each RFFE regardless of band has both Sides fitting with RFFE boards. Although “same band” RFFE’s are available as standard, fitted to both sides of the module, there are options that have been made available where each side may be fitted with a different band. Each RFFE requires a corresponding frequency band compatible BPFM. As with the RFFE, each RFBE and corresponding BPFM module is internally partitioned into Side “A” and Side “B”, effectively providing two RFBE’s per RFBE module. The BPFM must correspond in terms of frequency compatibility with the RFBE. Although “same band” RFBE’s are available as standard, fitted to both sides of the module, there are options that have been made available where each side may be fitted with a different band.. A bi-directional four channel, single band, non-frequency translating DSPbR will likely use the RFFE board in side “A” of the RFFE module for the uplink and the RFFE board in side “B” for the downlink. The full 20 MHz bandwidth of both RFFE boards will be converted from analogue to digital and individual channels are processed through their respective IF filter profiles and then converted back to analogue and fed to the allocated uplink and downlink boards within the nominated RFBE modules.



The Ref Gen + Aux/GPS module is primarily purposed to provide a reference signal against which the DSPbR VCO is disciplined. A reference signal can be sourced via the on board GPS receiver or from a 10MHz external reference. A multiband cellular modem is fitted as standard onto the Ref Gen+ Aux board to facilitate SMS alarm notification and act as a cellular wireless link to the DSPbR via a PPP session providing IP Ethernet access. This assumes that the DSPbR cell modem terminal has been provided a fixed IP address in the cellular network. The DSP module is partitioned into Side “A” and Side “B” boards, populated according to the number of channels and bands that require processing. There are two primary options, either 4 Channel 2 Band or 8 Channel 3 Band with a fibre expansion board option to connect to other DSPbR chassis. The CSC module controls and manages all processing requirements to all modules within the DSP and is essentially the internal communications hub. Fitted with non-serviceable lithium ion batteries the CSC is able to send primary power fail alarms via the Ethernet ports and Cell modem.

3.2.8 Optional Internal uplink and downlink combining

The downlink and uplink RFBE modules can be internally combined using an optional 8-Way combiner filter block that requires the real-estate of 4 slots. The condition is that all combined channels are in the same 20MHz portion of the band and are orientated in the same direction. For instance the combined channels are either configured for uplink or downlink, but not mixed. When the internal combiner is fitted, the BPFM’s are removed. The 8-Way combiner type allows for complete frequency agility within the RFBE sub-band of 20MHz. As the carriers are combined to feed into a single output the configured output powers may be auto adjusted internally so as not to increase the risk of breakdown in the output filter due to Peak Instantaneous Voltage breakdown. There is a table with the adjusted figures for your reference in the specification section of this User’s Manual. The 8-Way Internal combiner filter unit is available in most bands. As an alternative, external combining can be provided outside of the sub-rack frame. 8-Way combiner filter blocks are currently available in UHF and 7/800MHz frequency sub-bands. The VHF sub-band does not have detachable band pass filter modules and is therefore not available with an 8-Way internal combining option. Where external combining is the preferred option, the individual RF outputs are accessible at the rear of the DSPbR via the BPFM’s that are fitted to the respective RFBE’s. This allows for various options of combiners and or separate RFBEs to be fitted to a DSPbR chassis and optimised for the frequency combinations in use.

3.2.9 External Duplexer

Where uplink or downlink paths require combining into a single feeder network or antenna, an external duplexer will be required. RF Industries have a number of 19” rack mountable duplexer types and options available for most frequency, power and bandwidth requirements. There is currently no internal duplexer option available for the DSPbR, but a diverse range of duplexer models is available from RFI and may be fitted externally to the DSPbR to cater for the many frequencies, Tx-Rx passbands, and applications into which the DSPbR may be deployed.



Figure 1: Typical DSPbR Functional Block Diagram



3.3 Product Specifications

3.3.1 Electrical Specifications (across all sub-bands)

Model Reference DSPbR Series

Frequency Ranges 132-152MHz 150-174MHz (20MHz sliding Window) 403-420MHz 410-430MHz 430-450MHz 450-470MHz 470-490MHz 480-500MHz 500-520MHz 746-766MHz 786-806MHz 805-825MHz 850-870MHz

Max number of channels – single 4RU sub-rack frame

8 bi-directional (1 to 2 bands) 7 bi-directional (3 bands) 16 uni-directional (1 to 2 bands) 14 uni-directional (3 bands) 12 bi-directional (MCPA Mode) 24 uni-directional (MCPA Mode)

Max number of channels – multi-racks Please consult RFI

Synthesizer Offset (Channel Steps) 1.25kHz

Mode of Operation Full Duplex, translating or non-translating

Channel Bandwidth 12.5kHz and 25kHz

Receiver Sensitivity -116dBm (typical)

Adjacent Channel Selectivity NB 60dB / WB 70dB

Intermodulation Immunity > 70dB

Adjustable Gain Range (1dB steps) UL & DL frequency translating mode

70-135dB

Adjustable Gain Range (1dB steps) UL & DL non-frequency translating mode

70-130dB

Adjustable downlink / uplink Output Power (1dB increments). VHF/UHF Bands. Refer to Table 3 for maximum power limits with internal combiner fitted.

+10dBm (10mW) to +46dBm (35W) Note: reduced output level for channels passing APCO P25 Phase 2 and TETRA waveforms.

Adjustable downlink / uplink Output Power (1dB increments). 700/800MHz Bands. Refer to Table 3 for maximum power limits with internal combiner fitted.

+10dBm (10mW) to +44dBm (20W) Note: reduced output level for channels passing APCO P25 Phase 2 and TETRA waveforms.

Output ALC range ~100dB (channel independent)

Noise Figure (no ALC) < 6dB

Tx Spurious and Harmonic Emissions < -30dBm @ maximum output

PA Class of operation AB

Frequency Translating Error < 10 Hz, 0 Hz typical

System Impedance 50 Ohm

Max Input power - no damage (RFFE and RFBE ports) +10dBm

Ref Gen – GPS antenna feed voltage + 6V

Power Supply Options 24VDC, 48VDC & 110-240VAC

Power Consumption (typical) at 25ºC Ambient Up to 1500W (depending on configuration)



3.3.2 Optional SFP Optical transceivers (used for inter-rack linking)

Multi-mode SFP LC Duplex 1 band 400m, 2 bands 200m

Single Mode SFP LC Duplex – Medium Power 1 band 60km, 2 bands 50km

Single Mode SFP LC Duplex – High Power 1 band 100km, 2 bands 85km

3.3.3 Optional Internal Combiner (8-Way, full frequency agility)

Typical Insertion Loss 11.5dB

Maximum input power per channel Refer to Table 3.

Frequency Ranges Available for UHF, 700MHz and 800MHz. VHF requires the use of external combining.

3.3.4 Typical AC / DC estimated power consumption figures (examples)

Configuration @ 25ºC @ 60 ºC (Full fans)

1 x Bi-directional (UL 43dBm & DL + 46dBm) channels DL 35% UL 35% / DL 35% UL Gated

148W / 135W 340W / 326W

2 x Bi-directional (UL 43dBm & DL + 46dBm) channels DL 35% UL 35% / DL 35% UL Gated

219W / 196W 411W / 387W

4 Bi-directional (UL 43dBm & DL + 46dBm) channels DL 35% UL 35% / DL 35% UL Gated

366W / 316W 558W / 508W


527W / 451W 705W / 629W


667W / 573W 855W / 751W

3.3.5 Mechanical

Sub-rack Frame Height 4RU Height (179mm)

Sub-rack Frame Depth (including connectors) 440mm

RFFE input and RFBE output termination connectors N (F)

Ref Gen – GPS Antenna termination connector SMA (F)

Ref Gen – Cell Modem Antenna Termination connectors SMA (F)

Ref Gen – Ext Ref Input and Output termination connectors SMA (F)

AC Power supply socket types 110VAC IEC320-C19 socket 240VAC IEC320-C14 socket

DC Power supply terminal (24 & 48VDC Versions) Phoenix HDFK 16A

Finish – 19” Rack Front Panel Black

3.3.6 Weights (approximate examples)

2 bi-directional (UL & DL) channels no internal combining 19.7kgs



8 bi-directional (UL & DL) channels no internal combining 35kgs

For DL or UL Internal combining only (2-8Ch) add - 1.25kgs

For DL and UL Internal combining (2-8Ch) add - 2.5kgs

Weight (fully configured 8 bi-directional channels) + UL and DL internal combining

37.5kgs



3.3.7 Environmental

IP Rating IP20 (Indoor use only)

Active Cooling (fan speed variable with temperature) 2 x 119x119x34mm fans

Operational Temperature Range -30° C to +60° C

3.3.8 Connectivity

Ethernet connection points 1 x front - CSC module 1 x rear - Ref Gen module

USB Type “B” connector port 1 x front panel - CSC module

RS232 DB9 connector – socket 1 x front panel - CSC module

Internal / External Alarm DB15 connector - socket 1 x rear panel - Ref Gen module

RJ11 CAN Bus interconnect 1 x front panel - CSC (Universal)

GPS +6VDC antenna termination connector SMA (F) – Ref Gen module

10MHz clock – internal reference generator (GEN MON) SMA (F) - Ref Gen module

10MHz clock – external reference (EXT REF) SMA (F) – Ref Gen module

Cellular modem antenna connectors SMA (F) – Ref Gen module

Wireless (cell modem) GSM/GPRS/UMTS/4G

3.3.9 Indicators – CSC Module LCD Display (front panel)

LCD - Screen sequences with each successive mode-button press.

RFI Logo Current IP Address/ Subnet/Gateway/MAC address Date and Time PSU rail voltage / batt voltage Modules detected and enabled Module temperatures RSSI level per channel Alarms

LCD – Reset and Check Point option activated by depressing mode button for 5 seconds and then sequencing.

Normal reset Factory reset Factory + IP reset Latest Check Point

Power on Green LED CSC front panel

Major Alarm Alarm 1 Red LED

Minor Alarm Alarm 2 Red LED

Ethernet traffic on RJ45 Ethernet Port Flashing Orange/Green LED’s

3.3.10 Approvals

Approvals Australia - ACMA

USA – FCC (Part 22 & Part 90)

3.3.11 Electrical Compliance

Electrical Compliance (AC Mains PSU) AS/NZS 60950-1

Table 2: DSPbR Generic Electrical, Mechanical and Environmental specifications



4. Functional Description

4.1 General

The DSPbR Series repeater is based on the use of a DSP software defined radio (SDR) engine that provides significant configuration flexibility in defining parameters including; channel specific filter profiles, channel characteristic parameters configuration (frequency, gain, output power, etc) and alarm monitoring and reporting. Built on a modular platform for ease of upgradability, configuration and options, and maintenance flexibility, the DSPbR provides users with a flexible and cost effective rebroadcast platform. This platform is capable of multiple frequency operation, in one or more frequency bands, with frequency non-translating or translating operation across a wide range of RF gains and output powers. Most parameters are user-configurable in both the uplink and downlink directions – and on a channel-by-channel basis. The DSPbR is truly ‘RF-transparent’, passing all of the RF signal’s modulation content - including voice and data, sub-audible, signalling, and encryption - and for a diverse range of analogue and digital modulation protocols. The DSPbRs ability to be deployed into many different configurations leverages on the DSPbR architecture’s ability to converge one or more RF Front Ends (uplink or downlink ‘receivers’) and RF Back Ends (uplink or downlink ‘transmitters’) into a range of single and multi band solutions, all within a single DSPbR chassis - or expanding into additional chassis connected together with optical fibre. A single DSPbR chassis can be daisy chained to other chassis’, allowing additional chassis to be added, expanding the number of channels and cross band capability. When an additional chassis is added to an existing unit, the first chassis will be nominated as the “Master” unit and the other chassis’ as “Slave” units. The DSPbR’s system configuration is conveneintly user-programmed through the use of an integral webserver Graphical User Interface (GUI), which is accessible via front and rear panel RJ45 Ethernet ports. Alarm reporting can be configured to be communicated from the DSPbR via SMS, SNMP v2C (Northbound traps) or SMTP (Email). Alarm status is also monitored and visible using the GUI. In addition, major and minor alarms may be presented via two relays with isolated N/O or N/C contacts, which can be hard wire interfaced to via the DB15 socket at the rear of the DSPbR unit.



Figure 2:Sub-Rack frame modular construction

4.2 Sub-rack Frame

The DSPbR hardware platform is built into a standard 4RU 19” sub-rack frame, which together with its top, bottom and side covers, module guide rails and centrally located interconnect motherboard, is known as the DSPbR Sub-Rack. This sub-rack frame is identical in both single-rack and multi-rack DSPbR rack configurations. The sub-rack frame is characterised by the two solid carry handles protruding from the front of the unit. All modules connect into the centrally located backplane, and are guided to their respective mating coaxial, power and I/O connectors via guided slide rails. Each pair (with top and bottom rails) are allocated slot numbers within the DSPbR architecture and webserver GUI. The backplane assembly is considered integral to the sub-rack frame and its removal or replacement in the field is not intended. The majority of the backplane connections cater for a level of RFBE and RFFE inter-changeability. This is detailed in Appendix “A” Slot Architecture - Typical Configurations.



Figure 3:DSPbR front view

Figure 4: DSPbR Rear View

(Fully populated with RFBE + BP Filter modules - internal combiners not fitted)



4.3 Modules

The DSPbR has been designed on a modular level and as such the modules are configurable to essentially cater for different power supply and sub-band options providing channel expandability. The mandatory modules, without which the unit would not function, are the PILM (Power Inlet Module), PSU (Power Supply Unit) either 110-240VAC, 24VDC or 48VDC, CSC (Central System Controller) , REFGEN (Reference Generator + Aux) , DSP (Digital Signal processor) with two platform options, 4Ch 2 Band or 8Ch 3 Band, and at least a one RF Front End RFFE and corresponding RF Back End RFBE. A BPFM (Band Pass Filter Module) is bolted to the RFFE‘s and RFBE’s for insertion and or removal from the sub-rack frame as one unit. The motherboard, centrally located within the sub-rack frame interconnects all modules within the sub-rack frame. The PSU and CSC modules are located and removed from the front of the sub-rack frame. The Ref Gen + Aux, DSP, RFFE and RFBE modules with corresponding BPFM’s are located and accessible from the rear. The rear of the sub-rack frame is divided up from the left (looking at the sub-rack frame from the rear) into slot positions. There are 10 available slot apertures counting slots 1 to 10 from the left of the sub-rack frame to the right. The extreme right fixed module is the Ref Gen + Aux underneath which the PILM module is located. The DSP Module is located in the 10

th slot. RFBE modules are accommodated in slots 1 to 8. Slots 7, 8 and 9 are designed to

accommodate RFFE modules. Slots 7 and 8 are therefore dual purpose. Once originally configured the RFBE and RFFE (+ BPFM) modules are “hot swappable” and can be removed or inserted without powering down the DSPbR. A label bearing the respective module’s model number, version and serial number identifies each module. This label is adhered to the side of the module and is not visible without removing the module from the slot. A user definable removable yellow plastic labelling system has been provided on the external surface of the BPFM bolted to the RFFE and RFBE modules to allow the user to identify allocated ports once the user has configured the DSPbR using the web browser.

4.3.1 PILM - PSU In Let Module

The PILM is a power-conditioning module. There are four versions of this module; 24VDC, 48VDC, 110VA and 240VAC. The 110VAC PILM has an IEC320-C19 socket into which the provided mains power cord is plugged. The 240VAC PILM has an IEC320-C14 socket. The inlet module provides a degree of mains surge protection. Both the 24VDC and 48VDC PILM’s connect to an external DC supply via an 85Amp Phoenix HDFK 16A connector block. Although the AC PSU module accommodates an input voltage range from 110V to 240V, the appropriate 110V or 240V AC inlet module has to be fitted.

4.3.2 PSU Module

The PSU module is designed as modular and removable from the front of the DSPbR. Electrically preceding the AC PSU is the appropriate PSU inlet module which is located from the rear of the DSPbR. It is not necessary to remove the power inlet module prior to removal of the PSU module. Currently three PSU modules are available, 24VDC, 48VDC and the 110-240VAC 50/60Hz AC version. To remove the PSU module, firstly disconnect the DSPbR from the AC mains or DC power source and then unscrew the six front mount screws from the front of the DSPbR. Carefully retract the PSU unit straight out on the provided guide rails using the front handle on the PSU. Pull the PSU out far enough to gain access to the inlet module in-line plug/socket interconnect arrangement and if necessary the fuses located on the left hand side panel of the PSU module on the AC unit as illustrated in Figure 4.



Figure 5: Removal or refitting of DSPbR AC PSU

When removing or replacing the PSU, ensure to disconnect and on replacement re-connect the in-line plug into the in-line socket on the inlet module interconnect cable located on the RHS facing the front as illustrated. Although fundamentally the same, there is a small physical difference between the AC and DC PILM to PSU in-line plug socket arrangement. The AC PSU has three replaceable inverter fuses located within the PSU module and in order to check or replace any of these fuses, the PSU has to be unscrewed from the sub-rack frame as previously illustrated in Figure 4, levered forward on the guide rails using the available handle far enough to access the fuse holders as illustrated in Figure 6. Note that the 24VDC and 48VDC PSU’s have no replaceable fuses similar to the AC PSU version. The DC PSU’s have internal self-recovering overcurrent; over-voltage and under-voltage protection.

Figure 6: AC PSU fuse location.

All three fuses in the AC PSU are identical in rating and size and are listed under the DSPbR part number reference list within this User’s Manual.



4.3.3 CSC – Central Systems Controller Module

The Central System Controller module is located at the front of the DSPbR and is positioned on the extreme left hand side as illustrated in Figure-6. An LCD display, a green power on “ACTIVE” LED and two red alarm LED’s, ALRM1 (major alarm) and ALRM2 (minor alarm), mode change button, USB Type B, TCP/IP RJ45, RS232 socket and CAN bus RJ11 socket are located on face of the CSC module. Although an RJ45 socket is duplicated and located at the rear of the DSPbR on the Ref Gen + Aux module, DSPbR configuration and diagnostics for all modules is via the CSC module.

Figure 7: CSC Controller

Similar to the PILM, PSU, RefGen + Aux and DSP modules, the a CSC module is required to be fitted into every DSPbR chassis. In previous versions of the CSC module, separate models were used in DSPbR multi-rack chassis configurations. These separate models have now been integrated into a single universal CSC which can be configured for either ‘master” or ‘slave’ modes of operation via the webserver GUI. The CSC has an on-board back up battery, which provides power to its microprocessor and cellular modem, enabling the sending of appropriate alarms after a primary power failure. The microprocessor stores system configuration files and is able to restore previous configuration settings to a newly fitted module. The internal back-up battery is enabled or disabled via the GUI. Whilst connected, the battery is conditioned through an intelligent charger circuit. The internal battery is hardwired into the module and is unlikely to require field maintenance or replacement.



4.3.4 Ref Gen + Aux – Reference Generator Module

Located at the rear of the rack on the extreme right hand side (looking at the back of the rack from the rear), the Ref Gen + Aux module is required to be fitted into every DSPbR chassis. The Ref Gen + Aux module provides interconnectivity to and from optional signal reference sources such as a GPS or other external 10MHz reference signal.

Ref Gen +Aux module

Figure 8: Ref Gen + Aux Module

Frequency reference disciplining is enabled via the “System” configuration screen under the “Configuration” tab. Seven radio button options are provided. Refer to “Systems Configuration” Screen as illustrated below.



4.3.4.1 Frequency Reference Disciplining options;

Disabled: This option disables alarms related to GPS and external reference signals.

Note: If an external reference signal is connected and provided, this signal reference signal will be ignored, however if a GPS antenna is fitted, the system will be disciplined to the GPS signal but the related GPS alarms will not be reported.

GPS Enabled:

This option enables GPS related alarms, and disciplines the system by the GPS signal.

Any external reference signal will be ignored (if connected). External Reference Enabled:

This option enables external reference related alarms, and disciplines the system by an external reference signal. Should the external reference be removed, the system will still discipline to a GPS signal (if GPS antenna fitted).

DSP A Fibre 0, DSP A Fibre 1, DSP B Fibre 0, DSP B Fibre 1.

These options enable synchronization data sent across either Fibre 0 or Fibre 1 to DSP A or DSP B, to discipline the system. This allows a master Reference Generator to discipline other Fibre connected DSPbR Chassis Reference Generators. When no disciplining is required, activate the “Disabled” radio button. This option disables alarms related to GPS and external reference signals. Should an external reference signal be connected via the allocated rear SMA (F) socket in this mode, the reference signal input will be ignored, however if a GPS antenna is connected whilst in this mode, the unit will automatically be disciplined by the GPS signal.

When a GPS signal is required to discipline the reference generator clock frequency, an active GPS antenna must be connected to the GPS Antenna input. The output voltage on this connector is 6VDC rated at 0.5A. It is not necessary to activate the “GPS Enabled” radio button for the GPS signal to discipline the reference generator clock frequency, however to enable alarming in this mode and to ignore a 10MHz reference signal which may be connected and present, activate the “GPS Enabled” radio button. The “EXT REF” SMA Female connector is used to lock the reference generator to an external 10MHz reference. The required stability of this reference is +/- 3PPM with a nominal input signal level of 0dBm (0.22V RMS on 50 Ohms). The presence of the external reference above a certain level will lock the Ref Gen clock frequency to that reference should the “External Reference Enabled” radio button be Enabled. The “REF MON” SMA Female connector provides a 10MHz low impedance reference signal output at 0dBm (nominal). The output is daisy chained through each Ref Gen + Aux module that requires the clock reference. When daisy chained the Ref Gen + Aux modules will buffer the 10 MHz reference prior to forwarding onto the next Ref Gen + Aux module. Where more than one sub-rack frame is interconnected via fibre, the nominated and configured “Master” Rack will aggregate all alarms and alarm reporting.



GPS Antenna (+6VDC) SMA (F) termination

Reference Monitor SMA (F) termination

External Reference SMA (F) termination

Internal Cell Modem Antenna SMA (F) termination

Ethernet RJ45 Interface

DB 15 Alarm and external input interface

Figure 9: Ref Gen Module Interface

Note: Later models of the Ref Gen module cater for 4G (LTE) MIMO operation and have an additional

cellular antenna connector.

4.3.4.2 Inserting the Multi-band cellular modem SIM card

A multi-band cellular network modem is mounted to the Ref Gen board which is located from the rear of the DSPbR sub-rack frame. It is recommended that the SIM card on the Ref Gen board is removed and or refitted into the DSPbR in an electrostatic controlled environment.

4.3.4.3 SIM card Installation

Note: To remove the Ref Gen board from the DSPbR, it is easier to completely remove the DSP module in the adjacent slot and then remove the Ref Gen module. 1. Removal of the Ref Gen + Aux board from DSPbR Sub-rack Frame;

Unscrew the two (2) screws retaining the respective DSP Module and the Ref Gen + Aux board.

Carefully remove the DSP module which is guided by top and bottom internal rails by first pressing the top and bottom lever handles on the rear of the module outwards, and carefully “pull out” the DSP module.

Once DSP module removed access to the Ref Gen board is easier, carefully extract the Ref Gen + Aux board along the internal guide rails.

2. Lay Ref Gen + Aux board on a flat anti-static surface 3. Unpack the SIM card 4. Ensure there is no enabled PIN 5. Push along the top of the SIM card holder (X802) until the hinged SIM holder is loose 6. Lift the hinged SIM holder 7. Ensure the SIM card is correctly orientated and insert into the hinged holding sleeve 8. Close the hinged SIM holder 9. Push along the top of the SIM card-holder until the hinged SIM holder is locked in place 10. Once the SIM card has been fitted and securely locked down into the Ref Gen + Aux board, the Ref Gen board can then be re-inserted along the guide rails and fastened into the sub-rack frame 11. Re-insert the DSP module and then fasten both into the sub rack frame with their respective top and bottom fasteners The modem is then configured via the Communications Configuration page under Modem Settings. For alarm notifications via SMS messaging, enable the setting tick box under the Alarms configuration page.



4.3.5 DSP – Digital Signal Processor Module

A DSP module is partitioned into Side “A” and Side “B”. Channel and multi-band independent a single DSP board Side “A” will service up to 4 bi-direction carriers (uplink and downlink) in two bands. With both sides populated a DSP module is capable of processing up to 8 bi-directional channels in 3 bands.

DSP Module, illustrated without the

fibre expansion board fitted on either

side A or B

Figure 10: DSP Module

The DSP module fits into slot 10. This is the only slot allocated to the DSP module in the motherboard architecture. The DSP module does not require a tool to remove it once the screw fasteners have been fully released, there are two (top and bottom located) ejector lever handles which assist in its removal from the sub-rack frame. A DSP board in side “A” is wired to take inputs from RFFE boards in slots 9 & 8 and drives RFBE boards in slots 1, 2, 5 & 6. A DSP board in side “B” takes inputs from RFFE boards in slot 7 and drives RFBE boards in slots 3, 4, 7 & 8. The DSP module can be removed and replaced whilst the DSPbR is powered, however RF functionality will cease, inhibiting the signal path between RFFE and RFBE’s whilst a DSP module is unplugged. An arrow with the letters “UP” on the rear face indicates the module orientation. Where fibre connectivity between DSPbR sub-rack frames is required, fibre expansion boards are fitted internally to the DSP boards.



Yellow blank label recess

DSP Side B Expansion

Board SFP docking ports

SFP Green LED

Optical Rx Indicator

DSP Side A Expansion Board

SFP docking ports

SFP Green LED optical Rx

indicator

Figure 11: DSP Module with 2 x fibre interface (fitted to both side A and B)

Figure 12: DSP Fibre Port orientation



Figure 13: DSP + Fibre Expansion board block schematic

4.3.6 RFFE – RF Front End Module

An RFFE module is partitioned into side “A” and side “B”. Two RFFE boards are fitted into an RFFE module. The RFFE boards can be in different bands, however the BPFM fasted to the RFFE module must have the corresponding Side “A” and Side “B” band pass filters.

BPFM RFFE

Figure 14: Example UHF or 7/800MHz RFFE + BPFM bolted together

(VHF models have both integrated together in one housing)

The DSPbR backplane architecture accommodates up to six RFFE boards (three modules). The 1

st slot allocation for

the RFFE module is slot 9 (please note that slot 9 is dedicated to an RFFE slot only) followed by slots 8 and 7 respectively. The frequency bandwidth of each RFFE is a contiguous 20MHz. One RFFE can feed any number of corresponding channelized RFBE’s. This is true for bi-directional uplink and downlink configurations. Although the individual channel frequencies and their characteristics within an RFFE band are adjustable, the RFFE frequency band itself is fixed and is not adjustable. A different model RFFE module is required for each 20MHz band. The VHF 150-174MHz RFFE features a 20MHz ‘sliding window’. For example, at the sub-band extremes this module can be configured to operate on frequencies between 150 to 170MHz or 154 to 174MHz. Alternatively, a different 20MHz window position can be selected – i.e. 152.200 to 172.200MHz. The VHF 150-174MHz RFBE module has an 8MHz wide ‘sliding window’. Neither the VHF RFFE or VHF RFBE has detachable BPFM’s. The band pass filter is built into the same housing and therefore cannot be changed or removed.



4.3.6.1 Channel Configuration programmability

Channel Configuration programming is facilitated via the web browser GUI interface – Refer to chapter 5.2.7.

4.3.6.2 Typical hardware configuration examples

RFFE 410+410MHz module is configured with an RFFE 400-420MHz board in side “A” and the same 400-420MHz RFFE board in side “B”. An RFFE 815+860MHz module is configured with an RFFE 805-825MHz board in side “A” and an 850-870MHz RFFE board in side “B”.

4.3.7 RFBE – RF Back End Module

The RFBE is similar in external form to the RFFE and is bolted to the BPFM in the same manner. RFFE and RFBE BPFM’s are identical. The illustration of form and the bolting together of the BPFM to the RFFE in Figure 14 is the same for the RFBE. An RFBE module is partitioned into side “A” and side “B”. Two RFBE boards are fitted into an RFBE module. The RFBE boards can be in different bands, however the BPFM fastened to them must have the corresponding side “A” and side “B” band pass filters. The motherboard architecture accommodates up to sixteen RFFE boards (eight modules). A DSP board in side “A” takes inputs from RFFE boards in slots 9 & 8 and drives RFBE boards in slots 1, 2, 5 & 6. A DSP board in side “B” takes inputs from RFFE boards in slot 7 and drives RFBE boards in slots 3, 4, 7 & 8. Although the individual channel frequency and its characteristics within an RFBE band is adjustable, the RFBE band is fixed. RFBE modules are band specific. As with the VHF 150-174MHz RFFE, the RFBE Module has an 8MHz sliding window, for example at the sub-band extremes it can be programmed for frequencies between 150 to 158MHz or 154 to 162MHz or anything in between for instance 152 to 160MHz. The RFBE in the VHF band does not have a detachable BPFM, It is built into an extended module housing and therefore cannot be changed or removed.

4.3.7.1 Channel Configuration programmability

Channel configuration programming is done via the web browser GUI interface – Refer to chapter 5.2.7

4.3.7.2 Typical hardware configuration examples

An RFBE 410+410MHz module is configured with an RFBE 403-420MHz board in side “A” and the same 403-420MHz RFBE board in side “B”. An RFBE 815+860MHz module is configured with an RFBE 805-825MHz board in side “A” and an 850-870MHz RFBE board in side “B”.

4.3.7.3 Output power level settings

When configuring the RFBE via the GUI, the adjustable RF output power level is referenced to dBm and is the output level of the RFBE and does not include the losses of the BPFM or optional Internal combiner module. The level is adjustable in 1dB increments from +32dBm to +46dBm (+/- 0.5dB) for frequencies from 400 to 520MHz and +32 to +44dBm in 1dB increments for the 746 to 870MHz Frequency Range. The drop down menu over the setting will indicate the available output power level choices relevant to the frequency band. Refer to Table 3.



4.3.8 BPFM – Band Pass Filter Module

The DSPbR BPFM (Band Pass Filter Module) is band specific across the pre-determined bandwidth of the respective RFBE or RFFE. The BPFM is fitted and bolted into the output of the RFBE and input of the RFFE and is considered as an extension to the respective RFFE or RFBE module. Prior to assembly into a nominated slot, the BPFM has to be bolted into the respective RFFE or RFBE. Before fitting a BPFM to and RFFE or RFBE, ensure sub-band frequency compatibility for both corresponding sides of the respective RFBE or RFFE. A 2.5mm Allen Key (Hex) tool is required to unfasten or fasten the two modules together as illustrated in Figure 15. BPFM’s are used to filter the input to the RFFE’s and filter the output of the RFBE’s. They are factory tuned to provide a 20MHz pass band and NOT considered field tuneable. No attempt should be made to tune or optimise tuning of this filter.

Figure 15: Bolting BPFM onto RFFE or RFBE

An arrow with the letters “UP” on the rear face indicates the module orientation.

4.3.9 8-Way Internal Combiner Filter Unit

The 8-Way combiner filter unit footprint is across 8 contiguous RFBE channels, or 4 slots. The combiner incorporates built in isolators, a hybrid coupler combiner and a 20MHz pre-tuned bandpass filter.

Figure 16: 2 x 8-Way Combiner Filter blocks mounted into a DSPbR sub-rack frame



Figure 17: Removal of 8-Way Combiner Filter block from DSPbR sub-rack frame

Typical insertion loss figure for any channel through the 8-Way Combiner Filter is 11.5dB. The combiner is frequency agile across the full 20MHz fixed sub-bandwidth. An 8-Way Internal combiner filter is not available for the VHF sub-band as the RFBE is integrated into the BPFM and cannot be removed to make space within the chassis for an internal combiner module.. A single sub-rack frame can accommodate up to 2 x 8-Way combiner filter blocks, these are typically assigned as one for uplink, and one for downlink, but in multi-rack configurations, both combiners (if fitted in one chassis) could be assigned as either uplink or downlink as required. The connector on the combined output port of the 8-Way combiner filter block is an N Female style. Please refer to the maximum output power settings of the RFBE when using an 8-Way combiner filter unit - as detailed under chapter 5.3.9 and illustrated in Table 3. When an 8-Way combiner filter unit has been fitted in either the uplink or downlink or both, the provided tick box needs to be activated “per channel” feeding through the 8-Way combiner filter unit in order for the maximum output power to be auto-adjusted. This will effectively reduce the maximum output power level settings of the RFBE based on the number of enabled carriers to ensure no peak power breakdown damage within the 8-Way internal combiner filter unit. Should the user wish to manually adjust the maximum output power level, Table 3 indicates the MAXIMUM output power level setting permissible without causing damage to the 8-Way Combiner Filter Unit.



Number of carriers

RFBE Module Maximum RF Output power setting via GUI (Analogue, DMR, P25P1)

RF Output Power at output of Combiner

Filter tick box activated

VHF/UHF 7/800MHz VHF/UHF 7/800MHz

2 46dBm 44dBm 34.5dBm 32.5dBm







Number of carriers

RFBE Module Maximum RF Output power

setting via GUI (P25P2, TETRA)

RF Output Power at output of Combiner

Filter tick box activated

VHF/UHF 7/800MHz VHF/UHF 7/800MHz








Table 3: 8-Way Internal Combiner Filter, per carrier Max Power Settings

Notes: 1) Approximate loss through combiner filter unit for all bands is 11.5dB 2) Duty Cycle assumption per channel 100% 3) All carriers through the combiner filter unit are to be set to the same level As indicated in Table 3, an additional 11.5dB of loss has to be added to the RFBE RF output power figure to get an indication of the output of the 8-Way combiner filter unit.

dBm Watts dBm Watts dBm Watts

0 1.0mW 16 40mW 32 1.6 W

1 1.3mW 17 50mW 33 2.0 W

2 1.6mW 18 63mW 34 2.5 W

3 2.0mW 19 79mW 35 3.2 W

4 2.5mW 20 100mW 36 4.0 W

5 3.2mW 21 126mW 37 5.0 W

6 4mW 22 158mW 38 6.3 W

7 5mW 23 200mW 39 8.0 W

8 6mW 24 250mW 40 10 W

9 8mW 25 316mW 41 13 W

10 10mW 26 398mW 42 16 W

11 13mW 27 500mW 43 20 W

12 16mW 28 630mW 44 25 W

13 20mW 29 800mW 45 32 W

14 25mW 30 1.0 W 46 40 W

15 32mW 31 1.3 W 47 50 W

Table 4: dBm to RF Power in Watts - Cross Reference



4.3.10 DSPbR Sub-Rack Frame Architecture

Refer to Appendix “A” - Single Sub-rack Frame, DSPbR Slot Architecture – Typical Configurations.

The DSPbR architecture facilitates band and channel flexibility with in-field upgradability. At the rear of the DSPbR sub-rack frame are 10 slot apertures numbered sequentially from the left.

SID

E A

SID

E B

DSP

Ref G

EN

Power

Input

Slot 1 Slot 9 Slot 10Slot 6Slot 4Slot 3 Slot 7 Slot 8Slot 5Slot 2

View from rear of DSPbR

Figure 18: Slot allocation Architecture

4.3.10.1 Slot allocation architecture

Slots 1-6 allocated to RFBE’s only. Slots 9 allocated to RFFE only. Slots 7 & 8 allocated to either RFFE’s or RFBE’s. Slot 10 allocated to a DSP module. Typically slots 1-4 or 5-8 are used for an 8-Way Internal combiner filter unit. RFBE modules can be configured such that side “A” is an uplink channel and side “B” is a downlink channel. When RFBE modules are configured in this way, the use of an internal combiner is not possible. Alternatively, RFBE modules can be configured with both side “A” and side “B” as uplink or downlink. This configuration option along with the corresponding slot block allocation permits the fitting of the internal combiner unit.



4.3.10.2 Internal up link and or down link RFBE combining

Internal RFBE output combining of uplink and or downlink channels is optional, however the slot and uplink / downlink configuration has to be in accordance with the following simple rules.

Rule 1.

Both side “A” and side “B” within the RFBE module have to be configured as either uplink or downlink RFBE boards.

Rule 2.

Combined channels must occupy 4 contiguous slots, i.e. slots 1-4 or 5-8.

The 8-Way combiner filter unit uses a hybrid coupler technique to cater for combining frequencies that are adjacent or at any frequency within the allocated 20MHz sub-bandwidth. Isolators and a band pass filter are incorporated within the combiner unit supporting good transmitter combining engineering practices. The 8-Way combiner filter unit bolts directly onto the back of the RFBE modules, effectively replacing the individual BPF modules at the outputs of the RFBE’s. The N female single output connector is accessible from the rear of the unit. Caution must be taken when touching the combiner module from the rear when in service as heat is likely to have been generated through this combining technique. Both uplink and or downlink output combining is possible within a single sub-rack frame. The 8-Way internal combiner has a single output and is not tuneable. Should this style of combining not be suitable for an application, external combining is recommended. When internal combining is not required, each RFBE module will be bolted to a corresponding BPFM, where the output N female connectors for both boards are presented at the rear of the sub-rack.

4.3.11 DSPbR Channel Expansion

The DSPbR is fundamentally designed for modular channel expansion. From a single channel in a single direction to bi-directional sub-rack frame expandable once the available slots have been utilised in a single sub-rack frame. This is achieved by daisy chaining fibre connected additional sub-rack frames. An optional Fibre optic link is provided to connect more than one sub-rack frame together. This is achieved via the DSP module, where fibre expansion boards are fitted that accommodate industry standard SFP transceiver modules. Where there is more than one sub-rack frame, one of the sub-racks is configured as the “Master” and the others Slaves. This expandability accommodates additional bands and channels not possible utilising a single sub-rack frame. The scope of this user’s manual does not extensively cover DSPbR sub-rack expansion options. Systems requiring additional sub-racks frames in this manner will be provided project specific documentation.



5. Installation

5.1 Unpacking

The DSPbR is heavy and considered a two-man lift. Always ensure safe lifting practices are followed when lifting a DSPbR chassis during installation, removal or maintenance activities. The 19” sub-rack frame will have been packed into a robust cardboard box container. All modules ordered with the initial order will have been fitted and fastened into the appropriate slots within the sub-rack frame. The appropriate AC mains voltage power cord, Ethernet jumper cable and module extraction tool along with a User Manual in a hard and softcopy CD will have been packed into the same cardboard box container. There are no feet on the underside of the unit and therefore careful placement “right side up” on a flat surface prior to mounting is required.

5.2 Mechanical

A single DSPbR sub-rack frame will occupy 4RU of 19” rack height. The minimum un-obstructed depth required within the 19” rack, excluding the additional space required to fit cable terminated coaxial connectors is 440mm. Top and bottom and side covers of the sub-rack frame are not required to be removed for field servicing and therefore is discouraged.

Figure 19: DSPbR Dimensions Front View



Figure 20: DSPbR Dimensions Rear View

Figure 21:DSPbR Dimensions Left Hand Side View

Figure 22: DSPbR Dimensions Right Hand Side View



Figure 23: DSPbR Dimensions Top View

The DSPbR is designed to be mounted into a 19-inch rack frame within an indoor environment. Although the mechanical strength of the DSPbR sub-rack frame is robust enough to contend with a maximum “all up” module load, any additional weight bearing adjustable mechanical supports such as angle brackets extending between the 19-inch front mounting frame and a rear frame would add strength to the support. There are many types of 19” rack cabinets and we suggest you consult with your 19” rack frame or cabinet supplier for appropriate weight support options. The DSPbR uses forced air-cooling and requires good airflow from the front of the DSPbR where the two fans draw in cooler air and expel heated air at the rear. 19-inch rack cabinet ventilation must facilitate the unrestricted movement of cooler air from the front of the cabinet and the unrestricted movement of expelled hot air at the rear. The fan speeds are temperature controlled, alarm notification messages and hardwired state change critical alarm relay contacts will activate if the temperature exceeds safe operational limits. When a modules internal temperature gets up to +70 deg C, the fans will be running at full speed. This equates to an airflow volume for both fans of 880 cubic meters of air in an hour (equating to around 0.25 cubic meters in a second). Ensure unrestricted airflow to reduce differentiating high and low air pressure zones.



Both fans have front panel accessible dust filters, which will require periodic cleaning. Please note that caution must be taken removing the fan covers and dust filters whilst the unit is operational as the fans may start up or be running. Although there is a protective guard to prevent fingers from accessing the fan blades from the front, the suction and fan noise may startle the unknowing. The dust filters can be removed for cleaning by carefully levering off the plastic fan covers. No special tools are required and this can be done by hand. A mild soap wash and dry should be sufficient to clean the dust filters. Should they be perished in any way, please replace them. The fan dust filter part number is located under the part number section of this user’s manual. Different configurations will influence the weight of the DSPbR, It is however important to know that the DSPbR could weigh up to 38kgs, which is considered heavy and a two man lift. There are three handles located on the front panel of the unit of which only the two side handles are available for lifting the unit. The third handle is to be used only for the removal of the PSU and is marked with a label underneath the handle indicating that this handle is not to be used for lifting.

5.3 Electrical and Earthing

The DSPbR can be powered from either a 24VDC, 48VDC or 110-240VAC mains power source.

Figure 24: DC 24 or 48VDC Phoenix HDFK 16A connector termination block

Please check the power connectivity at the bottom right hand side of the rear of the sub-rack frame (viewing the DSPbR from the rear) to determine which option has been supplied. DC Connectivity is via the terminal block located at the rear of the DSPbR as illustrated in Figure 24.

WARNING:

Before proceeding with this chapter, if you have not already done so, please read and

familiarise yourself with the Health and Safety warnings in Chapter 1.3 of this user’s manual.



Figure 25: AC Mains Termination IEC320-C14 socket connector (240VAC) and M6 Earthing Stud.

Prior to connecting the power source, ensure the unit is earthed to the 19” rack and the earthing follows through from the rack to the common external earth. Connect the 19” rack earthing facility on the sub-rack frame using the provisioned 6mm threaded stud on the sub-rack frame as illustrated in Figure 25. Connect an earth bonding cable with a minimum cross section of 16mm² terminated with the appropriate crimped lug for the 6mm stud and 16mm² copper cable. The 16mm² cable must be identifiable by the green and yellow coloured PE sheath. Loosen the Hex nut, connect the cable-crimped lug between the two washers and fasten. Consideration has to be given to adequate grounding and surge protection of the RF coaxial cables prior to termination into the DSPbR, and surge protection for the Ethernet and AC Mains. When making arrangements to connect to an AC supply, it is recommended that the DSPbR is turned on via either the wall mount socket switch, a dual pole isolator switch or dedicated “D” curve circuit breaker after the mains cord has been fitted. Where connecting to DC supply, it is recommended that an appropriately rated dual pole DC circuit breaker be installed. This will assume the role of an ON/OFF switch. Prior to connecting to either an AC mains or DC supply, ensure that the RF outputs at the rear of the DSPbR sub-rack frame, whether via an internal or external combiner, are terminated as a minimum into 50 ohm loads, alternatively into the respective antenna cables. The AC mains IEC320-C19 socket rating is 15 Amps, which is used for the 110VAC input voltage range The AC mains IEC320-C14 socket rating is 10 Amps, which is used for the 240VAC input voltage range Two industry standard AC mains power cord options are available with the DSPbR. For the Australian market a 2.5 metre cord fitted with a 10 Amp standard mains plug is provided. For the US market a 2.5 metre cord with a 15 Amp rated 5-15P mains plug is provided.

WARNING:

There is no ON/OFF power switch located on the DSPbR for either the DC or AC connectivity.



DC connection to the DSPbR is via a two terminal 85 Amp rated polarised modular Phoenix connector block (Phoenix model number HDFK 16A). The polarised DC power cables must be rated to carry the required current with minimal voltage drop. We recommend the use of 10AWG gauge cable up to 10 meters in length for the 48VDC supply option and 6AWG cable of the same length (up to 10m) for the 24VDC supply option. DC power cables, in-line fuses or circuit breakers are not provided with the DSPbR. Use a qualified electrician to assist with the AC mains installation. Once either DC or AC mains power has been applied to the DSPbR, the DSPbR will test cycle which will last approximately 45 seconds, during which time the fans will be turned on and then off.

5.4 Lightning Protection

In order to proactively protect the DSPbR from static discharges, power surges or lightning strikes we recommend the use of additional lightning surge protection products.

5.4.1 The AC Mains

Although the DSPbR complies with the basic mains surge protection requirement according to EN 61000-4-5, it is recommended that in areas where the mains voltage is susceptible to voltage variations and surges, that medium or coarse voltage conditioning and surge protection be installed.

5.4.2 RF Coaxial Cabling

All RF coaxial cabling exposed to proximity or direct lightning discharges should have appropriate cable grounding and lightning surge protection devices fitted prior to entry into the DSPbR. This includes when GPS and or Cellular modem antennas are being used as part of a DSPbR installation.

5.4.3 Ethernet connection

As network cabling may also be susceptible to surges, the IP Ethernet connection should be provided sufficient protection using a product such as the Polyphaser, NetGuard or NX Series products.

5.5 Antenna to Antenna Isolation

Where frequencies are being rebroadcast without translation, back- to-back antenna isolation will determine the amount of gain that can be configured through the UL and DL paths. Back-to-back antenna isolation is the measured isolation in either UL or DL direction between the “off air” donor facing antenna and the antenna or signal distribution system providing the extended coverage. As a rule the gain should be set 15dB below the measured antenna to antenna isolation to reduce the risk of on-frequency rebroadcast feedback/oscillation in either direction. The isolation / gain margin is easier to achieve when rebroadcast is required for coverage extension is into a physically enclosed area such as a building or tunnel. Where the rebroadcast frequency is translated, in other words the received frequency in either the UL or the DL is not the same as the amplified and rebroadcast frequency transmitted, the minimum antenna isolation parameters are significantly different. This is commonly referred to as the Rx to Tx offset.



Using the graph in Figure 26, the minimum isolation between these two back-to-back antenna systems can be determined. As an example, if the frequency translation offset is 0.5MHz (500KHz) at UHF, the minimum antenna to antenna isolation required would be 85dB regardless of configured gain in either the Uplink (UL) or Downlink (DL). Further observation of the graph will indicate that the minimum 85dB isolation between the antenna systems generally applies to all the bands and offset frequencies greater than 400KHz. It is important to note that this minimum isolation characteristic is also applicable to duplexers if used to split and combine the Uplink and or Downlink paths.

Figure 26: Antenna - to - Antenna isolation graph.



5.6 External / Internal Alarm Interface

At the rear of the chassis protruding from the back of the Ref Gen module is the DB15 female (socket) alarm interface connector.

Figure 27: External/ Internal Alarm Interface

Figure 28: Alarm Interface connector pins.



The alarm interface drawing in Figure 27 details the respective alarm input and output circuits with respect the DB15 connector pins. The DSPbR caters for coupling into the unit and reporting up to four external alarm inputs. All four inputs require shorting to ground to activate the respective alarm. The open circuit voltage is 12V DC. These four individual external alarm circuits can be configured with a reference name and any one of three states. Major alarm, Minor alarm and None. Please refer to Alarms Configuration under the configure tab in the GUI menu as displayed in the screen dump illustration.

When the identified external alarm input changes state, this is flagged in the Alarm Status screen under the Status tab as illustrated in the Alarm Status screen.



6. Start Up

Prior to turning the power on from the circuit breaker to the DSPbR, ensure all un-used RF ports on the respective RFFE+BPFM’s and RFBE+BPFM’s are terminated with a 50 Ohm load - or directly into the interconnect cables attached to either antennas or passive components within the designed system.

6.1 CSC Front Panel Power On “ Active” and Alarm LED’s

From the front of the DSPBR you will notice the green “Active” LED will be illuminated as the DSPBR goes through its boot up cycle, during which time the Major (ALM1) and Minor (ALM2) red LEDS’s will also be temporarily illuminated. The two front mounted fans will also be activated during the boot up cycle.

Figure 29: CSC Front Panel LCD Display, Mode Button and LED’s

Green “Active” LED – Lights up and stays on once DSPbR has finished booting up. Red “ALM1” LED – Lights up on critical alarm relay activation. Stays on for duration of relay activation Red “ALM2” LED – Lights up on minor alarm relay activation. Stays on for duration of relay activation



scroll

6.2 LCD Display

When the DSPbR is switched on the RFI Logo is displayed with a backlight on for up to 45 seconds. After this initial period, the logo remains on and the backlight turns off. Pressing the Mode Button once will activate the backlight. With sequential Mode Button pressing, the following real time current information is written and displayed within the 4 lines of the LCD screen

Second Press: Current IP Address/Subnet /Gateway/MAC address

Third: Set Date and Time

Fourth: PSU rail voltage / battery voltage

Fifth: Modules detected and enabled

Sixth: Module temperatures

Seventh: RSSI levels per channel

The LCD display, backlight and information is powered by the standby battery in power failure mode. DSPbR Normal or Factory default reset options are available via CSC front panel Mode Button The front panel Mode button below the LCD screen of the DSPbR module is normally used for checking the DSPbR status and configuration details. The same Mode button has an alternate function of restoring the controller to factory default. To enter in this factory default menu the Mode button should be held pressed for 5 seconds. The LCD screen changes to “RESET MODE ENTRY” as show below,

When above screen is displayed release the Mode button and once again quickly press and release the Mode button

to see the further options as shown below,



The factory reset menu has five options to choose from and the arrow pointing left indicates currently selected option.

To advance the arrow position to select next menu option press and quickly release the Mode button.

The following table shows the reset options and their description.

LCD Displayed Menu Description

1 Exit Menu Exit from the factory reset menu

2 Normal Reset Just restart the controller and configuration stays unaltered

3 Factory Reset Load controller with default factor configuration with unaltered IP address

4 Fact+IP Reset Load controller with default factory configuration including IP address

5 LatestCheckPt Load controller with the last saved checkpoint

Table 5: Controller LCD Reset and Check Point options.

6.2.1 Activating the selected Reset Menu:

After selecting the appropriate menu item from the list release the Mode button. Now once again press and hold the Mode button for

5 seconds or until you see following screen.

Now release the Mode button. This is the final confirmation before the factory reset action. The default arrow position

is “NO”. To move the arrow to “YES” option press and quickly release the Mode button. Now the arrow will point to

“YES” option. At this stage press and hold the Mode button for 5 seconds and the screen updates to following;



Now release the Mode button. The above screen indicates that factory reset was successfully completed.

To go back to normal status screen press and quickly release the Mode button.

Factory Default settings

Static IP address: 192.168.1.200

Subnet: 255.255.255.0

Gateway: 192.168.1.254

Level 2 User name: admin

Level 2 Password: admin

Serial interconnect baud rate: 115200

6.3 General Connectivity

Ethernet – via RJ45 sockets, refer to Chapter 5.2.10 for connection details.

RS232 – via front mounted serial DB9 connector on CSC module.

The serial interface allows either a local or remote terminal to interrogate the DSPbR and access diagnostic information. This DSPbR connectivity option is intended for factory technical support which requires CLI (Command Line Interface) script to communicate to the unit. USB – via front mounted USB Type “B” socket on CSC module.

Similar to the RS232 connection, the USB interface allows a local terminal session using a program such as Hyper-terminal™ to interrogate the DSPbR and access diagnostic information via CLI. Wireless - Multiband Cellular Modem in the RefGen + Aux module.

The cell modem is used to provide SMS alarm reporting and the setting up of a PPP session for on board GUI access into the DSPbR. This further facilitates configured, SNMP trap communication with an SNMP server and email alerts.

6.3.1 Ethernet TCP/IP Connectivity

6.3.1.1 Web Browser GUI (Graphical User Interface)

The DSPbR utilises an on board web server to provide web browser access to the GUI. This can be accessed directly connecting via a short Ethernet cable jumper from a laptop/notebook directly to the DSPbR or remotely via a TCP/IP network. A standard Ethernet CAT5e jumper terminated with RJ45 connectors is provided with the unit in the packing box for your convenience. Use either the rear or front IP Ethernet RJ45 sockets to connect. The DSPbR can be configured either locally or remotely via either of these IP Ethernet sockets. Any one of the common web browsers can be used to access the DSPbR GUI.



6.3.1.2 IP Address

Connect Ethernet jumper cable between laptop / notebook and DSPbR. Initiate the your preferred web browser such as Internet Explorer, Chrome or Mozilla Firefox and type in the address field the following default address; http://192.168.1.200 (factory default address). Connectivity to the DSPbR is successful when the “log in” page appears.

Should the web browser be unable to open this session, it may be necessary to set the IP address of your laptop / notebook to a nominated address such as 192.168.1.180. This is done for example in Windows XP™ in the following manner;

1. Select “Start” from status menu 2. Single click – “Control Panel” 3. Double click – “ Network Connections” 4. Double click - “Local Area Connection” 5. In Local Area Connections Status box, single click the “Properties” tab 6. When the Local Area Connection Properties box opens, select the “Internet Protocol (TCP/IP)” choice 7. Click “Properties” tab 8. Enter under IP address 192.168.1.180 9. Enter under subnet mask 255.255.255.0 10. Enter under default gateway 192.168.1.254 11. Click “OK” to initiate changes

This is done for example in Windows 7™ in the following manner;

1. Select “Start” from status menu 2. Single click – “Control Panel” 3. Single click – “ Network and Sharing Center” 4. Single click - “Change Adapter Settings” on the left hand side menu 5. Single Click – “Local Area Connection” box 6. Single Click – “Change Settings of this Connection” 6. When the Local Area Connection Properties box opens, select only the “Internet Protocol 4 (TCP/IPv4)” choice. 7. Click “Properties” button. 8. Click “Use the following IP address”. 9. Enter next to IP address 192.168.1.180 10. Enter next to Subnet mask 255.255.255.0 11. Enter next to Default gateway 192.168.1.254 12. Click “OK” to initiate changes.



Should you still be unable to successfully connect to the DSPBR via the default IP address then the IP address may have already been changed. If there is no possibility of recovering the changed IP address, then it will be necessary to reset the DSPbR to the factory default settings. To see what IP address is configured for the DSPbR, use the front LCD screen on the CSC controller module and press the mode button until the IP address and IP connectivity details appear in the LCD display.

6.3.1.3 Determining the current Ethernet address settings

The currently programmed IP/subnet/gateway addresses are revealed via the LCD front panel when the mode button is depressed twice. When connectivity to the DSPbR cannot be established from your PC or Laptop, or you may have simply forgotten your username and password, it may be necessary to reset the unit to the factory default setting.

6.3.2 Log in Page

The default level 2 User Name is “admin” and Password is “admin”. This default user name and password provides complete and unrestricted access to the DSPbR (level 2). Once logged in, this can be changed via the User Management screen under the Maintenance tab.

6.3.3 User Name and Password Levels

Level 1: User name and password access via the web browser GUI interface displays only status screens. Level 2: User name and password access via the web browser GUI interface facilitates status, configure and maintenance screens. Please note: If the incorrect username and password has been entered in succession more than three times, the interface to the repeater will be blocked for 5 minutes. Refer to Chapter 5.4.2 IP Address - Reset to factory default Ethernet addressing for default user name and password.

Once the allocated level User name and Password has been entered the appropriately tabbed Introduction page will be presented.



7. Configuration

The following Level 2 access pages are screen images of the respective pages accessible via the web browser. These pages are for the most part self-explanatory. A help button is located at the bottom of the navigation tabs which opens up a help screen with content pertinent to the screen opened.

The diagram illustrated is provided to bridge the understanding of how traditional channel modules relate to the DSPbR’s RFFE/RFBE modular architecture concept. For a more accurate understanding of the functional block diagram of the DSPbR, refer to Figure 1 under 4.2.9.



7.1 GUI Tree

The DSPbR features an integral webserver Graphical User Interface (GUI) that allows the unit to be conveniently configured using an internet browser and a computer. GUI has been structured into two user name and password access levels;

Level 1 (lower): Display and provide access to the Introduction, Status and Logout pages. Level 2 (higher): Display and provide access to all pages.

The GUI Navigation is mapped out as illustrated;



7.2 Status Pages

7.2.1 Status - Current Hardware

The Hardware Configuration illustration is representative of the rear view of the repeater. This illustration does not indicate Slot 11 (located on the extreme right-hand side), which is the fixed and mandatory "Reference Generator + Aux " board. Slot:

Each repeater rack has 10 available slots into which the required modules are inserted for a specific repeater configuration. One module can be inserted into a slot, however a single module can house up to two separate RFBE or RFFE PC boards referred to as "Side A" and "Side B". RFBE, RFFE and DSP modules fit into the respective slots in a prescribed order, details of which are available in the DSPbR user's manual. Looking from the rear of the repeater, "Side A" PCB is located on the left-hand portion of the module and its corresponding external N Type termination connector is located top left of the module. Looking from the rear of the repeater, "Side B" PCB is located on the right-hand portion of the module and its corresponding external N Type termination connector is located bottom right of the module.



Side A and B Configurations: When viewing the cover on the side of a module, if there is no marking, then there is no RFBE, RFFE or DSP board on that side. If the side of a module is labeled with a number, then the number indicates the band of that side. Follow the colour coding to determine what module type is inserted in each side. NOTE: It can take a while for a module to be displayed when inserted. This can manifest itself by no module indicated, or '#' appearing in the band information.

7.2.2 Status – System Alarms (rack overview) & RSSI

Rack Alarms: A summary of any rack alarms is displayed. To see alarm details for a rack, then click on the rack label. RSSI Alarms: A summary of all Control Channel RSSI alarms. Actual RSSI level is shown for the configured alarm channel. Alarm indications: If alarm is blank (white), the rack/alarm is not present. If alarm is labeled as 'Major' and is coloured Red, then a major alarm has been detected. If alarm is labeled as 'Minor' and is coloured Amber, then a minor alarm has been detected. If alarm is labeled as 'OK' and is coloured Green, then no alarm has been detected.



7.2.2.1 Status-- Rack Alarms (rack specific detail)

7.2.2.1.1 Status – Rack Alarms / External Alarms

There are up to four external alarm inputs. If external alarm is not connected, then no alarm is indicated.

7.2.2.1.2 Status – Rack Alarms / Slot & Module Alarms

Alarms are indicated for each side of a slot separately. e.g. Alarm 5B, will be for slot 5, side B. 'Rg+Aux' indicates the Reference Generator and Auxiliary board alarms. This board is located on the rear of the repeater at the extreme right (Slot 11). 'Ctrl' indicates the Control module. It is located on the front of the repeater. To see alarm details for a board (side) in a slot, then click on the slot label. If module is not present, then alarm details will not be shown. Note: there are no alarms available for the slot as a whole.



7.2.2.1.3 Status – Rack Alarms / Power Alarms:

Obtained from the power supply module. It is located on the front of the repeater. Alarm Indications: If alarm is blank (white), the slot/side/alarm is not present. If alarm is labeled as 'Major' and is coloured Red, then a major alarm has been detected. If alarm is labeled as 'Minor' and is coloured Amber, then a minor alarm has been detected. If alarm is labeled as 'OK' and is coloured Green, then no alarm has been detected.

7.2.3 Status - Version Register

To view the version register of another rack, then select the rack from the selection box.



The rack being viewed is selected in the top drop-down box. Slot: Version information is indicated for each side of a slot separately. e.g. Slot 4A, will be for slot 4, side A. 'Rg+Aux' indicates the Reference Generator and Auxiliary board. This board is located on the rear of the repeater at the extreme right (Slot 11). 'Ctrl' and 'Power' indicate the Control and Power Supply modules respectively. They are located on the front of the repeater. Type: Indicates the type of module present. No text indicates no module is present.

'BE' is a RF Back End and indicates RF transmission (PA) module is present. 'FE' is a RF Front End and indicates RF receive (LNA) module is present. 'DSP' indicates a digital signal processing module is present. 'AC' indicates an mains power supply is present. '48VDC' indicates a 48V DC power supply is present.

Serial Number: Displays the serial number of the board. Software Version: Displays the software version of the application software. NOTE 1: For the Controller, the software version for the application code (before '/') and the GUI version (after '/') are shown. NOTE 2: For the DSP, the software version for both the application code (before '/') and the FPGA image (after '/') are shown. NOTE 3: For the DSP, two rows are shown. The first row shows the Main DSP board and the second row shows the Expansion board (if inserted). Hardware Version: Displays the hardware version of the board. NOTE 4: For the DSP, two rows are shown. The first row shows the Main DSP board and the second row shows the Expansion board (if inserted).



7.2.4 Status - Racks

The Inter Rack Linkages are displayed in a matrix format. If a fibre is not fitted, then this information will not appear. Details both ends of a fibre termination, which includes the physical termination (Connection field), and bands transmitted from each termination (Transmitted Bands). An example of where fibre is connected and detected between racks is illustrated as follows;



Connection (rack, side/fibre): Specifies the physical connection for the fibre. When looking to the rear of the repeater, side A is on the left and side B is on the right. Fibre link 1 is closer to the edge of the DSP module, while fibre link 2 is closer to the middle of the DSP module. Transmitted Bands (1, 2): Two bands can be transmitted along a fibre. The bands which will be transmitted are specified. Observed when mouse placed over Connection information. Rack Status Unique Id: Displayed is the unique identifier of each rack connected. Input Selection to Rack (DSP Side A / B; Band 1 / 2): Selected band presented into the rack from a connected fibre. If fibre not fitted, then this information will not appear. DSP Side A <--> B Tx (Band 1 / 2): Specifies what bands are transmitted between the two sides of a DSP module. NOTE: Front ends in slots 8 and 9 are connected to side A, while front ends in slot 7 are connected to side B.

7.2.5 Status – Channels Overview



Each Channel Status Overview page is limited to 4 bi-directional / 8 directional channels. The top drop down menu field selects the relevant channel page.

Rack: The rack where the Back End (PA) is located. BE: Back end (PA). Freq Out: Output/transmit frequency in MHz Power(*): Actual maximum power configured in dBm. In MCPA mode, the configured power will be automatically limited.

If star / asterisk, then an internal combiner is assumed to be present. If dash / minus, then the channel is not verified and activated.

FE: Front end (LNA). Freq In: Input/receive frequency in MHz

Gating: Three different gating threshold settings are available:

i) When a "0" is entered into the Gating field, receiver gating is disabled.

ii) When gating is required to an absolute fixed level in dBm, a negative value is

entered; the gating is set to the fixed value as elected below 0dBm. As there is a 3dB hysteresis on a set gating figure the level required to open the gating is 3dB higher. Gating is activated when the signal drops below the set level. For example a setting of -105 will set the channel to gate off at -105dBm and gate on at -102dBm.

iii) Where gating is required to track above a dynamic noise floor, a positive value is

entered. This positive setting must not be used for constant signals from a donor site (e.g. control channels - see note below). This positive value is the dB level delta above the noise floor at which gating should occur. The 3dB hysteresis applies and therefore a signal 3dB above this level will open the channel. Positive levels set too low can cause "receiver chatter" and must be adjusted in + 1dB steps upward until the chattering ceases.

NB. When gating is required to track a dynamic noise floor, the system will automatically track the lowest noise (and signal) level it receives (per channel) to set the noise floor. The noise averaging algorithm is fast acting with noise (and signal) levels lower than the current noise floor, and slow acting on noise (and signal) levels higher than the current noise floor. The DSPbR cannot distinguish between noise and wanted signal, so if a continuous high level wanted signal is present, the noise level will eventually adjust to the wanted signal level. Therefore where a constant signal is present from a donor site (e.g. a control channel), this setting is not appropriate, since the wanted signal will eventually be gated off. For constant signals from donor sites gating should be set to 0 (off) or a negative (absolute) gating level. Positive gating (tracking level above the noise floor) must be set and tested in the presence of typical site noise and not in a lab environment to get the best results.

Gain: Maximum gain through the repeater. If set to 'auto', then maximum possible gain is applied. NOTE: Gain might be limited by output power.

RSSI: Current RSSI (Receive Signal Strength Indicator) level.

Name Out / In: Name of the channel output / input.

Delay: The total delay of the DSPbR in microseconds (µsec). This includes the inherent delay of the filter and electronics, as well as any additional delay.

Filter: The digital filter used.

RSSI (setting): Specify whether the channel is a control channel (RSSI) or not (Non-RSSI). If control channel, then associated RFFE RSSI alarm signal level threshold is displayed.

FCC: Channel is to comply with FCC requirements (FCC or Non-FCC).

Active: If Enabled, the channel will be enabled when activation occurs.



7.2.6 Status - Communications

This page reports both the current and stored Communications settings.



7.2.6.1 Ethernet

Column heading Stored Value

These are the values stored in the system's non-volatile memory. When the repeater is started or re-started, these settings will be used if DHCP is disabled, or a DHCP server is not accessible.

Column heading Currently In Use

These are the values that are actually in use at present.

Settings

DHCP: If enabled, the repeater will attempt to get its IP Address, Subnet Mask and Gateway settings from a DHCP server. If a DHCP server cannot be found, the stored settings will be used, and the Currently In Use status will show as disabled.

If disabled, the stored values will be used unconditionally.

IP Address: The Stored and Currently in Use IP address values.

Subnet Mask: The Stored and Currently in Use network address mask values.

Gateway: The Stored and Currently in Use gateway address values.

MAC Address: The physical MAC address of the unit.

7.2.6.2 SNMP Trap Alarm Reporting

Manager IP Address: The IP address of the SNMP manager.

Manager IP Port: The listening port of the SNMP manager.



7.2.6.3 Modem Settings

Status: Enabled or Disabled.

Recipient 1& Recipient 2: The recipients of SMS messages. Can be specified as: Disabled or Alarm Only. If Alarm Only, then the recipients number will be displayed.

PPP: Internet access to the DSPbR.

Information displayed: Enabled or Disabled, Selected APN, Username and Password login details for PPP protocol

Network Registration: This shows that the SIM card is recognised by the service provider

RSSI: Receiver Signal Strength Indication

Use the table below to see the equivalent dBm level for the reported cellular modem RSSI level. RSSI dBm Condition;

2 -109 Marginal 3 -107 Marginal 4 -105 Marginal 5 -103 Marginal 6 -101 Marginal 7 -99 Marginal 8 -97 Marginal 9 -95 Marginal 10 -93 OK 11 -91 OK 12 -89 OK 13 -87 OK 14 -85 OK 15 -83 Good 16 -81 Good 17 -79 Good 18 -77 Good 19 -75 Good 20 -73 Excellent 21 -71 Excellent 22 -69 Excellent 23 -67 Excellent 24 -65 Excellent 25 -63 Excellent 26 -61 Excellent 27 -59 Excellent 28 -57 Excellent 29 -55 Excellent 30 -53 Excellent

Alarm Management System Password: This password is used by the Alarm Management System if this feature is active.



7.2.6.4 Alarm Reporting

SMNP northbound trap via the Ethernet port: Alarm messages can be sent via a SNMP trap. Enabled or Disabled.

SMS via cell modem: Alarm messages can be sent via a text/SMS message. Enabled or Disabled.

Email message via the Ethernet port: Alarm messages can be sent via an email message. Enabled or Disabled.

7.2.6.5 Serial Port

Baud rate: The baud rate of the serial port on the front of the repeater. The protocol consists of 8 bits, No parity, 1 stop bit (8,N,1), and no flow control.

7.2.6.6 Email Alarms

SMTP Server Address: IP address of SMTP server.

SMTP Server Listening Port: The listening port of the SMTP server.

From Email Address: The email address of the DSPbR.

Destination Email Addresses: The destination email addresses for DSPbR alarms.



7.2.7 Status - System

This page reports the current general repeater settings.

7.2.7.1 Racks

Rack: The number of racks in this system (Master, Slave1, etc)

Name: The name which identifies each rack in this system.

Location: The name allocated to the location of each rack in this system.

Serial Number: The serial number for each rack in this system.

7.2.7.2 System

Standby battery: If enabled, the repeater's internal backup battery is operational. This allows the repeater to indicate loss of power (e.g. via output alarm relays or cellular modem). If disabled, the repeater will immediately shut down when supply power fails.

Date: The current system date.

Time: The current system time.

Frequency Reference Disciplining: Indicates where reference disciplining is expected from. This can be: no disciplining, GPS disciplining, external reference, DSP A or B fibre 0 or fibre 1.

Regulatory Modes of Operation: Aspects of international compliance requires limits to be placed on the DSPbR operation. The following limits are allowed for:

ACMA (MCPA mode): In MCPA mode spurious is limited to -30dBm.

FCC part 90: RFBE limited to 5W maximum output power for non-MCPA mode. In MCPA mode, spurious is limited to -13dBm.



7.3 Configuration Pages

7.3.1 Configuration - Racks

7.3.1.1 Single (Master) Rack Configuration

Configured as a single (Master) Rack only

Rack: Corresponding rack. In the example above this identifies the rack which is either a Master if stand alone or Slave. Slaves connected are allocated corresponding numbers, ie. Slave 1, 2, 3 etc.

Unique Id: Displayed is the unique identifier of each rack present. This identifier cannot be modified.

Input Selection to Rack (DSP side A / B; Band 1 / 2): If rack not fitted, then this information will not appear.

Since two fibers can be inserted in each side of the DSP module, up to four bands are available for reception. A rack is limited to receiving two bands per side. The first two selection box’s, specify the side A received bands on channel 1 and 2 respectively. The last two selection box’s, specify the side B received bands on channel 1 and 2 respectively.

DSP Side A <--> B (Band 1 / 2): Specifies what bands are transmitted between the two sides of a DSP module.

The bands can either be local front ends, or bands received from a fibre termination. NOTE: front ends in slots 8 and 9 are connected to side A, while front ends in slot 7 are connected to side B.

Verify Racks: Click 'Verify' button to verify the rack configuration.



7.3.1.2 Multi-Rack Configuration

Configured as a fibre connected Master to Slave System

If fibre is not fitted between any of the DSPbR racks, then the Fibre Terminations information will not appear. As reported in the inter-rack linkages, details both ends of a fibre termination, which includes the physical termination (Connection field), and bands transmitted from each termination (Tx Bands). Connection (Rack; Side-Fibre): Specifies the physical connection for the fibre. When looking to the rear of the repeater, side A is on the left and side B is on the right. Fibre link 0 is closer to the edge of the DSP module, while fibre link 1 is closer to the middle of the DSP module. Tx Bands (Band 1 / 2): Two bands can be transmitted along a fibre. The bands which will be transmitted are specified. If Summing of bands permitted has been selected in the Maintenance – Features screen an additional selection will

appear in the Tx Bands Band 1 drop down menu. This selection will allow one frequency band to be routed from a Slave chassis to the Master chassis in a system, where multiple Slave chassis’ fibre inputs will summed. This “star” configuration of 2, 3 or 4 Slave chassis connected to one Master chassis in a ‘star’ configuration is analogous to a typical analogue RF-Over-Fibre (RFOF) system, and can be used to operate the same channels/frequencies from multiple Slave chassis’ to a single central Master chassis.



7.3.2 Configuration – Channels

Configuration within each channel should be done from left to right. i.e. specify Rack, then BE, etc. To view other channels, select them from the selection box.

Rack: The rack where the Back End (PA) is located. Only detected front ends are shown.

BE: Back End (PA). Only detected Back Ends are shown. (refer below for use of ‘VOID’)

Freq Out: Output/transmit frequency in MHz, valid range within the limits of the Back End.

Cmb/Pwr: If check box is ticked, then an internal combiner is assumed to be present. Maximum power in dBm (allowing for an internal combiner) can then be specified. Maximum power will be limited by number of channels directed to BE (multi-channel

operation), as well as number of BEs connected into a combiner.

Refer elsewhere in this manual for power limits when combiner or multi-channel used.

FE: Front End (LNA). Only detected front ends are shown. (refer below for use of ‘VOID’)

Freq In: Input/receive frequency in MHz, valid range within the limits of the Front End. Support for shared Front End/Back End modules. A VHF paging module that provides FE/BE functionality in one module is now available. This module must be operated in Slot 7 or Slot 8 of the DSPbR chassis and provides cost-efficient and space-efficient deployment for uni-directional applications such as paging.

Note: The GUI should have the unused halves of the channel set to “VOID” (as shown below) to remove these fields from the validation process.

i) The Maintenance/Files GUI page File Type and associated Maintenance/Files HELP page have amended to include a reference to “TFS” file name extensions. TFS files are used by the roller and DSP modules and their use was already supported in previous firmware versions, but the text on the amended pages did not reflect this support. This oversight is corrected in this release.



Gating: Three different gating threshold settings are available:

When a "0" is entered into the Gating field, receiver gating is disabled When gating is required to an absolute fixed level in dBm, a negative value is entered, the gating is set to the fixed value as elected below 0dBm. As there is a 3dB hysteresis on a set gating figure the level required to open the gating is 3dB higher. Gating is activated when the signal drops below the set level. For example a setting of -105 will set the channel to gate off at -105dBm and gate on at -102dBm. Where gating is required to track above a dynamic noise floor, a positive value is entered. This positive setting must not be used for constant signals from a donor site (e.g. control channels - see note below). This positive value is the dB level delta above the noise floor at which gating should occur. The 3dB hysteresis applies and therefore a signal 3dB above this level will open the channel. Positive levels set too low can cause "receiver chatter" and must be adjusted in + 1dB steps upward until the chattering ceases. NB. When gating is required to track a dynamic noise floor, the system will automatically track the lowest noise (and signal) level it receives (per channel) to set the noise floor. The noise averaging algorithm is fast acting with noise (and signal) levels lower than the current noise floor, and slow acting on noise (and signal) levels higher than the current noise floor. The DSPbR cannot distinguish between noise and wanted signal, so if a continuous high level wanted signal is present, the noise level will eventually adjust to the wanted signal level. Therefore where a constant signal is present from a donor site (e.g. a control channel), this setting is not appropriate, since the wanted signal will eventually be gated off.

For constant signals from donor sites gating should be set to 0 (off) or a negative (absolute) gating level. Positive gating (tracking level above the noise floor) must be set and tested in the presence of typical site noise and not in a lab environment to get the best results.

Auto/Gain: If check box is ticked, then set to 'auto', where maximum possible gain is applied. If not ticked, then maximum gain is specified. Valid range from 70 to 135 dB for frequency

translating channels and 70-130dB for non-translating channels.

Name Out / In: Name of the channel output / input. Limited to 16 characters.

Delay: The total group delay of the channel in microseconds (µsecs). Only whole numbers can be entered. This includes the inherent delay of the filter and electronics, as well as any additional delay.

Filter: The digital filter used. If the mouse is rolled over the drop box, details of the selected filter are shown.

RSSI: Select whether channel (in either direction) is a control channel.

Insert associated RSSI (Receive Signal Strength Indicator) alarm signal level threshold.

FCC: Channel is to comply with FCC requirements.

Active: Tick to enable. If enabled, the channel will be available when activation occurs.

Delete: Delete the corresponding channel.

Add: Add a channel.

Save: Save channels that are visible on the GUI. NOTE 1: It is necessary to save changes first. NOTE 2: It is necessary to save changes prior to leaving page, adding another channel, or deleting a channel.

Activate Channels: Click 'Verify & Activate' button to activate all the configured channels. If a channel is configured, but not enabled, then it will not be activated.



7.3.3 Configuration – Communications

This page provides configurable fields for all Communications settings both current and stored.



7.3.3.1 Ethernet Settings

DHCP: If enabled, the repeater will attempt to get its network settings from a DHCP server. Default is Disabled.

IP Address: IP address in IPv4 format (i.e. aaa.bbb.ccc.ddd) Default: 192.168.1.200

Subnet Mask: Default 255.255.255.0

Gateway: Default 192.168.1.254

7.3.3.2 Modem Settings

Status: Checked if Enabled. Default is Disabled

SMS Text Alarming The formats for SMS Text Alarms can be selected as follows; General Text Alarm Gives detailed module fault information in the default format. These are general text messages that may be sent and read directly from a mobile phone screen. The following messages are supported;

Invalid module inserted, Status=Fault ON|OFF SFlash fail, Status=Fault ON|OFF EEPROM fail, Status=Fault ON|OFF 28V rail fail, Status=Fault ON|OFF 7V2 rail fail, Status=Fault ON|OFF Battery fail, Status=Fault ON|OFF System verification fail, Status=Fault ON|OFF Control channel RSSI fail, Status=Fault ON|OFF Possible fibre connection issue, Status=Fault ON|OFF

Custom (long) Text Alarm Gives specific module fault information, in a legacy format for compatibility with existing installations. Many messages are supported. The format of a message is; the source module (CT = Controller) and the failure type and its status. Examples are;

CT:Invalid module inserted=FAIL|OK CT:Control channel RSSI fail=FAIL|OK

Custom (short) Text Alarm Gives module fault information in the same format as legacy BTR/BCR systems. As the number and detail of legacy BCR/BTR alarms is greatly less than is available for the DSPbR, the DSPbR alarms have been summarised for compatibility with the BCR/BTR format’ Examples are;

PW:Power=FAIL|OK BT:Standby Battery=FAIL|OK

AMS Enabled This should be selected if using the BCR/BTR Alarm Management System (AMS). The format of an AMS compatible alarm message is a proprietary binary format. Alarm management system messages will be sent to Recipient 1.



Recipient 1: Enter Cell phone details

Recipient 2: Enter cell phone details The recipients of SMS messages; Can be specified as - Disabled, Alarm Only

If Alarm Only, then the recipients' number will need to be specified. Only "Recipient 1" will be used for Alarm Management System if this feature is enabled.

PPP: Configures Internet access to the repeater.

Start PPP: Enable Modem PPP communication

Stop PPP: Disable Modem PPP communication

APN String Edit: Enter a new APN string here. Modem can store up to 6 APN strings. The APN string entry requires a number between 1 to 6 at

the beginning. Modem PPP should be disabled during APN change. Update APN List: Use update APN List button to save the new APN string to modem. Example of APN string: telstra.internet If unsure about APN string, contact service provider.

Username and Password: Login details for PPP protocol.

Use the "Save" button at the bottom of the page for any modifications on PPP parameter settings to take effect.

Alarm Management System Password: This password is used by the Alarm Management System if this feature is active. Password can be 1 to 8 characters long and should use capital letters between A to Z or numbers from 0 to 9.

7.3.3.3 SNMP Trap Alarm Reporting

Manager IP Address: IP address in IPv4 format (i.e. aaa.bbb.ccc.ddd), Default: 0.0.0.0

Manager Listening Port: The listening port of the SNMP manager, Default Port: 162.

7.3.3.4 Alarm Reporting

Alarms can be reported as: SNMP northbound trap via the Ethernet port, SMS (text) message via the inbuilt cellular modem, Email message via the Ethernet port. Check the appropriate box to enable the required method of alarm reporting.

7.3.3.5 Serial Port

Baud rate: The baud rate of the RS232 serial port on the front of the repeater. Default: 115200 bps

7.3.3.6 Email Settings

SMTP Server Address: IP address in IPv4 format (i.e. aaa.bbb.ccc.ddd)

SMTP Server Listening Port: The listening port of the SMTP manager, default is Port 25.

From Email Address: The email address of the DSPbR.

Destination Email Addresses: The destination email addresses for DSPbR alarms.



7.3.4 Configuration – System

System Configuration page, Name & Location: User specified string, indicating the name and location of a rack.

Standby battery: The repeater's internal backup battery is operational. Default is Disabled. Under enabled condition backup battery is also used for powering modem. DSPbR can report alarm using the modem even during power outage situations.

Date: The desired system date in Day, Month and Year order.

Time: The desired system time in Hour, Minute and Second order. The time automatically increments to allow for accuracy.



Frequency Reference Disciplining:

DISABLED: This option disables alarms related to GPS and external reference signals. Note: an external reference signal will be ignored (if connected) but if a GPS antenna is fitted the system will be disciplined to the GPS signal. GPS ENABLED: This option enables GPS related alarms, and disciplines the system by the GPS signal. Any external reference signal will be ignored (if connected). External Reference enabled: This option enables external reference related alarms, and disciplines the system by an external reference signal. Should the external reference be removed, the system will still discipline to a GPS signal (if GPS antenna fitted). DSP A FIBRE 1, DSP A FIBRE 2, DSP B FIBRE 1 or DSP B FIBRE 2: These options enable synchronization data sent across either Fibre 1 or Fibre 2 to DSP A or DSP B, to discipline the system. This allows a master Reference Generator to discipline other Reference Generators.

Fast Gating Response: ENABLED: This is the default setting for this feature and applies to VHF models only. This option changes the gating in the VHF RFBE module(s) so that the output stage is continuously active (not controlled by the gating function) to a faster channel Tx rise time in support of some new models of subscriber products. Overall channel signal gating is still provided by the DSP module itself, and power consumption in all VHF channels fitted to the chassis will increase as a result of selecting this feature. DISABLED: This option disables the continuously active state of the VHF RFBE module(s) so that it remains under gating control. Typical Tx rise time for a VHF RFBE with this feature disabled is ~10mS typical.

Auto Activation: ENABLED: This option selects whether replacement (or new) modules have their configuration automatically updated (called ‘auto-push’) by the Controller module when they are inserted into a chassis. This feature assists in maintenance activities. However, if the Controller module is the module replaced into the chassis, all other modules may have their configurations updated from this inserted Controller module’s current selected and active configuration – which may be different from the configuration required by the chassis in its current installation. DISABLED: This is the default setting for this feature. This option disables the ‘auto-push’ function of the Controller module. If disabled, replacement (or new) modules fitted to the DSPbR chassis must be manually configured for the current configuration required by the module in the current installation.

Regulatory Modes of Operation: Aspects of international compliance requires limits to be placed on the DSPbR operation. The following limits are allowed for: ACMA (MCPA mode): In MCPA mode spurious emissions are limited to -30dBm. FCC part 90: RFBE limited to 5W maximum output power for non-MCPA mode. In MCPA mode spurious emissions are limited to -13dBm.



7.3.5 Alarm Matrix

The DSPbR reports alarms via SMS, email or SNMP. Alarms can be user categorized to Major, Minor or Disabled. An alarm matrix is provided for the user to priority categorize these respective module alarms. The alarm matrix covers the following alarmed modules and additional facilities.

Module Alarm Priority The module alarms can be configured as Major, Minor or Disabled. GUI uses the following colours to indicate various alarm priorities

Major - Red

Minor - Yellow

Disabled - Alarm is not reported

Module Alarm Reporting Medium Following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP. GUI page "Configuration - Communications" provides the configuration page required to input the remote destination addresses. SMS Alarm Messaging Human readable alarm SMS messages can be sent to two appointed recipients. The multi-band cellular modem option has to be fitted in order to facilitate this. The modem can be configured via the Communications Configure page – Modem Settings. For alarm notification via SMS messages enable the setting tick box under the Alarms configuration page. Assuming a permanent TCP/IP network connection, or a PPP connection via the cell modem, once an alarm has been received via SMS, the recipient can access the alarm details on the Alarm Status page via the web browser GUI interface.



Email Alarm Messaging Alarms will be emailed to recipients as configured under the Configuration \ Communications section of the GUI. Up to a total of 4 recipient email addresses can be entered. SNMP Alarm Messaging Customised SNMP Alarm “North Bound” traps can be configured via the Configure \ Communication page where the SNMP server/s address and listening port number can be configured. An additional feature is provided in the way of a Periodic SNMP service which generates an unsolicited SNMP North bound trap to indicate the general status of the DSPbR at a predetermined time. The time period at which this SNMP is sent is configured via the drop down menu on the Alarm Matrix – Periodic SNMP page. Please ensure you receive the correct DSPbR SNMP MIB files for the firmware baseline being used. DSPbR MIB files may be downloaded from the RFI web site or contact your nearest RFI Sales office.

7.3.5.1 Alarm Matrix - Reference Generator Module



7.3.5.2 Alarm Matrix - RFFE Modules

Module Alarm Priority:

The module alarms can be configured as Major, Minor or Disabled. GUI uses following colours to indicate various alarm priorities,

Major - Red Minor - Yellow Disabled - Alarm is not reported

Module Alarm Reporting Medium: The following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP GUI page "Configuration - Communications" should be used for the remote destination address



7.3.5.3 Alarm Matrix - RFBE Modules

Module Alarm Priority: The module alarms can be configured as Major, Minor or Disabled. GUI uses following colours to indicate various alarm priorities


Module Alarm Reporting Medium: The following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP GUI page "Configuration - Communications" should be used for the remote destination address.



7.3.5.4 Alarm Matrix – DSP Module


The module alarms can be configured as Major, Minor or Disabled. GUI uses following colours to indicate various alarm priorities,


Module Alarm Reporting Medium:

The following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP GUI page "Configuration - Communications" should be used for the remote destination address



7.3.5.5 Alarm Matrix – Fibre Expansion Module


The module alarms can be configured as Major, Minor or Disabled. GUI uses the following colours to indicate various alarm priorities,






7.3.5.6 Alarm Matrix – PSU


The module alarms can be configured as Major, Minor or Disabled. GUI uses the following colours to indicate various alarm priorities






7.3.5.7 Alarm Matrix – Controller Module


The module alarms can be configured as Major, Minor or Disabled. GUI uses the following colours to indicate various alarm priorities,






7.3.5.8 Alarm Matrix – External Alarms

External Alarms: There are up to four external alarm inputs. Each alarm input requires a shorting to ground to activate the respective alarm.

External alarms can be configured as Major, Minor or None. If an external alarm occurs, a corresponding alarm will be generated. A custom label name can be applied to each external alarm.



7.3.5.9 Alarm Matrix – Periodic SNMP

SNMP Summary: Enable / Disable Periodic SNMP summary alarms

Time Period: Select the time period from the drop down list, default is 1 minute



7.4 Maintenance

The DSPbR has the following maintenance screens



7.4.1 Features Management

This page allows the activation of the optional features in the repeater. To enable or disable a feature, tick he associated check box. MCPA mode is Multi-Carrier Power Amplifier operation. This feature allows multiple channels to be assigned to a single RF Back End (RFBE) for low power operation. Summing of bands permitted is a multi-rack feature that allows multiple Slave racks to be operated from a single Master rack in a star configuration. The same RF channel frequencies may be assigned from multiple Slave Chassis’ RFFE to a single Master chassis RFBE. This is analogous to analogue RF-Over-Fibre (RFOF) where multiple remote units may have the same frequency(s) being received and output back to the donor network via a single headend unit.



7.4.2 Files Management

This page allows the maintenance of files that operate the DSP based Repeater. A list of possible file types are shown as examples with the relevant prefix and extensions.



7.4.2.1 Uploading firmware

New firmware upgrades can be loaded via the GUI interface. Whether you know the file location source address or wish to have the option to browse for the file, both upload options are available. When upgrading module or GUI firmware (.tfs), the following procedure is followed

File upload: 'Browse' for and select the file to upload. Expected file types are: .FCF (filters), .CFG (configuration), .BIN (application) and .RBF (FPGA image). Press the 'Send' button. Files are stored in the repeater.

The file will then appear in the file list. An exception is the controller application, which is automatically updated. Base Line firmware upgrades will normally include the uploading of 2 file types, The first is the Controller .BIN file and the second is the GUI .tfs file. Certain BL upgrades may require additional module specific firmware to be included in the upgrade process. Refer to RFI for assistance. Base Line upgrades are applied to both DSPbR’s when fibre linked and configured in a “Master”, “Slave” arrangement. There is no Master or Slave specific firmware as DSPbR’s can be configured for both roles.

7.4.2.2 Filter profiles

Filter profiles will be available for selected analogue and digital modulation schemes and channel bandwidths. The filter profile header will bear the name of the technology. Ensure you have the correct technology profile and channel bandwidth for your application

7.4.2.3 Downloading Configuration Files

NOTE: Valid characters in filename are: A-Z, a-z, 0-9, - (dash) and _ (underscore). No spaces are permitted. If an invalid filename is specified, then the file is not saved and the GUI page will reappear with no changes evident.

Synchronize: After a file is uploaded, it is not automatically made active. Synchronization involves distributing the specified file to the relevant modules in the DSPbR and activating them. The synchronization process is done in the background, and can take a little time. Select the application or filter type to activate. Press the 'Synchronize' button

View: Select the file to view from the list. Press the 'View' button.

The file's contents will be shown in a new window or tab. Use the browser's save page functionality to store the file. More than one configuration file can be saved and loaded into the DSPbR

All CFG and CHK file data is human readable.

WARNING:

Before proceeding with upgrading the DSPbR firmware, it is strongly recommended confirming

compatibilities of the proposed upgrade with currently operating versions. Some incompatibilities exist, particularly with older and customised firmware versions.

Please contact your nearest RFI Sales Office for further information on your current firmware

version, and its compatibility with the proposed upgrade version.



Load Config: Select the .CFG file to load from the list. Press the 'Load Config' button

If the configuration file exactly matches the current configuration, then the filename is displayed.

Delete: Select the file to delete from the list. Press the 'Delete' button

Save Configuration to File: Type in a new configuration file name (must end in .CFG). Limited to 25 characters.

Press the 'Save Config' button, Configuration is saved to the repeater and will be displayed in the file library. NOTE: Valid characters in filename are: A-Z, a-z, - (dash) and _ (underscore). No spaces are permitted.

7.4.2.4 Generate History Log

A current history log file can be generated and loaded into the on board files folder, downloadable or viewed on line. Navigate to GUI Maintenance \ File Management page. Press the 'Generate History Log' button to generate or overwrite the DUMP.LOG file. This file can then be viewed by selecting from the list and pressing 'View' button. History log is saved to the repeater. History data in time and date order for each module in sequence will be saved to the file. Alarms and events will be in a human readable format and can be separated. This file is downloadable as a standard text file. Should assistance be required in reading this data, please refer to [email protected]

7.4.3 User Management

This page allows the maintenance of users that can access the repeater. Only users at 'view status and settings' and 'modify settings' can be edited from this web page. If a higher user level needs to be modified, this must be done from the command line. To change a username and password: Type in new username in 'Name', type in new password in 'Password'. Confirm the new password by typing the same password into 'Confirm Password'. Both entries of the password must match. Click on 'Apply'.



7.4.4 Test Alarms

The Alarm simulation and testing feature provides a method by which the DSPbR alarm transmission can be tested once configured. The test alarm is a pseudo Controller Module Alarm where the module although not faulty provides a simulated alarm for a test period of approximately 1 minute. There will be an initial delay from anywhere between 10 and 30 seconds before activation. Test Ctrl Alarms: Press this soft button to simulate controller alarms



7.4.5 Alarm Event Log

This page creates a textual format Alarm Event log to assist in the identification and analysis of fafult conditions. The Alarm Event Log is maintained in the Controller module, and alarms from the other modules in the DSPbR chassis are periodically updated and collated by the Controller module. To ensure an up-to-date listing is available for viewing or display, the Update Alarm Log button initiates an update by the Controller from all of the other modules. Example Alarm Event Log



7.4.6 System Checkpoint

This page allows restoring the DSPbR repeater's configuration to a previously known checkpoint. View: Select the .CHK file to view from the list. Press the 'View' button. The file's contents will be shown in a new window or tab.

Load Config: Select the .CHK file to load from the list. Press the 'Load Checkpoint' button.

Delete: Select the file to delete from the list. Press the 'Delete' button

Copy any .CHK file to a .CFG or Configuration File:

Type in a new configuration file name (must end in .CFG). Limited to 25 characters. Press the 'Save Config' button, Configuration is saved to the DSPbR. To view the saved configuration, go to Maintenance/ Firmware page. NOTE: Valid characters in filename are: A-Z, a-z, - (dash) and _ (underscore). No spaces are permitted.



7.4.7 Restart

Restart Repeater: Press the 'Restart' button to restart the entire system with existing settings. Default Settings: Press the 'Default' button to set the entire system to default settings. NOTE: the IP address information is not defaulted. This can be done in the 'Configure -> Communications' page.

7.5 Logout



7.6 HELP Screens

A comprehensive set of Help screens are available throughout the DSPbR GUI. On any page, click the Help button to display the available information.



8. UPGRADING FIRMWARE

IMPORTANT

Note: It is important to confirm the compatibility of the hardware (i.e. modules) and firmware revisions currently fitted into an existing DSPbR in the field – PRIOR to attempting an upgrade to any later firmware revision. Transitions may be required through specific intermediate firmware versions when upgrading from an earlier firmware version to a later one. In isolated cases, particularly where firmware has been developed and supplied for customised applications, later revisions of the products’s generic firmware may be incompatible, and attempting to upgrade such customised units to later firmware revisions may result in performance issues – such as the loss of the original customised features. Please contact RFI prior to upgrading any DSPbR to confirm any compatibility issues with any later firmware revision releases.

General

To use the upload and other firmware upgrade procedures described in this document, you need to use a PC connected to the DSPbR via either a Network or locally via an Ethernet cable. You will need to know the IP address of the DSPbR and you must be able to communicate with the DSPbR using a PC running Internet Explorer version 8 or higher. You will also need the password required for admin login. Before You Start

It is strongly recommended that you save the DSPbR configuration to the internal file system before you perform any firmware upgrades. Furthermore, it is also recommended that you backup all internally saved configuration files to your PC. The procedures to perform these backups are provided below. Important: If you are upgrading the DSPbR GUI file system (.TFS file), you MUST perform both of the save and backup steps as described above because the upgrade process deletes all internally saved user configuration files from the DSPbR. After a GUI file system upgrade, the DSPbR configuration will have to be restored and reloaded from your saved backup.

Once you have saved and made backups of the DSPbR configuration files, you should firstly check the versions of the current firmware versions in the DSPbR and then proceed to upgrade the individual module’s firmware as required. If you upgrade the GUI file system, you will have to restore the backed-up user configuration files you saved to your PC and reload, verify and activate one of these. After any firmware upgrade, you will also have to perform a Channel Verify & Activate operation to clear any “Required module not detected” alarms.



Save All Configuration Files 1. Type the DSPbR IP address in the Internet Explorer address bar and press the Enter key.

2. Login as Admin.

3. To save the current system configuration to a file, click on the Maintenance menu and select the Files

submenu.

4. Locate the textbox below the heading “Save Configuration to File”.

5. In the textbox, type a name to save the configuration file with .cfg extension as shown in the screenshot below.

6. Press the “Save Config” soft button. Once saved, the file name will appear in the file list as indicated below.

File List

Textbox



7. To backup a configuration file to your PC, select the required configuration file from the file list and click the

“View” soft button.

8. The contents of the configuration file will appear as a new tab as shown below (Example: “test123.cfg”).

9. Using the “Save Page As” option in the web browser, save this text file with same name as the original

configuration file (example: “test123.cfg”), ensuring the .cfg extension is preserved. This will create a backup

copy of configuration file on your PC that can later be uploaded to the DSPbR if required.

10. Repeat steps 7, 8 and 9 above for any other existing internal configuration files that you wish to preserve.



Firmware Version Check Procedure

1. Type the DSPbR IP address in the Internet Explorer address bar and press the Enter key.

2. Login as Admin.

3. To check the firmware version click on the Status menu and select the Version Register submenu. As

shown in the example below, the controller (CTRL) Firmware version is 2.2.



GUI File System Version Check Procedure

1. To check the GUI version, navigate to the Maintenance menu and select the Files submenu.

2. Click on the “version/info.txt” option and press the “View” soft button. The GUI file system information will be

displayed in a new tab.



3. An example GUI version page is shown below with the current version indicated in the top line of the text.



Controller Firmware Upload Procedure

1. Select the Maintenance menu from the menu bar on the left and select the Files submenu.

2. This will open the “File Management” page as shown below.

3. On the “File Management” page, select “Choose File” soft button to open the file selection dialog box.

4. Select the appropriate firmware file (example: “CTRLSS_APP_3_6.BIN”).

5. The selected file name appears beside the “Choose File” soft button.

6. Press the “Send” soft button to start the file upload process.

7. The upload process takes about 3 minutes. During the upload process, the progress bar may start and stop

couple of times but it is advisable to wait for the full 3 minutes.

Note: During the upload process, do not refresh or click any soft button on the DSPbR GUI as this

could lead to file corruption.

8. After the upload process is completed, check the new firmware version by repeating the steps described in

Firmware Version Check Procedure above.



Update Module Firmware

1. Select the Maintenance menu from the menu bar on the left and select the Files submenu.


3. On the “File Management” page, select the “Choose File” soft button to open the file selection dialog box.

4. Select the appropriate module firmware file (example: “REFGEN_V1_8.BIN”).


6. Press the “Send” soft button to start the file upload process. After the file transfer has completed, the file will

appear in the file list box.



7. The upload process takes about 3 minutes. During the upload process, the progress bar may start and stop


Note: During the upload process, do not refresh or click any soft button on DSPbR GUI as this could

lead to file corruption.

8. To load the firmware into each of the modules, select the required firmware file in the file list box.

9. Click the “Synchronise” soft button to commence the module firmware update process. This will update all

modules in the DSPbR which are compatible with the selected firmware file.

10. After the upload and synchronise processes have been completed, check the new firmware versions by

repeating the steps described in Firmware Version Check Procedure.

GUI File System Upload Procedure Warning: Updating the GUI file system will delete all existing files in the internal file system. Ensure you have saved any configuration files to your PC that you wish to preserve before proceeding.

1. Click on the Maintenance menu on the menu bar on the left and select the Files submenu.





4. Select the appropriate GUI file (example: “CTRLSS_FS_5_2_.TFS”).


6. Press the “Send” soft button to start the file upload process.

7. The upload process takes about 3 minutes. During the upload process the progress bar could start and stop




8. After the upload is completed, check the new GUI version by repeating steps described in GUI File System

Version Check Procedure.

9. After updating the GUI file system, you will need to restore each of the backed-up user configuration files

you previously saved on your local PC as described in the following Restore and Reload Backed-up

Configuration Files section.

Restore and Reload Backed-up Configuration Files

1. Click on the Maintenance menu on the menu bar on the left and select the Files submenu.





4. Select the required configuration file to restore (example: “myconfig.cfg”).


6. Press the “Send” soft button to start the file restore/upload process.

7. The configuration file upload process will only take a few (usually less than 10) seconds to load.



8. Repeat steps 1 through 7 for each configuration file you wish to restore from your PC.

9. When all the configuration files have been restored to the DSPbR internal file system, one configuration file

must be loaded in preparation for the Verify and Activate process.

10. To reload a DSPbR configuration file, select the required file in the file list box, and press the ‘Load Config’

button below the list box.

11. Finally, perform the steps in the following Activate the Previous Configuration section.

Activate the Previous Configuration

1. To clear the “Required module not detected” alarm and to activate a reloaded configuration, a Channel

Verify & Activate operation is essential.

2. From the Configuration menu, select the Channels submenu. This will open the Channel Configuration

Overview page as show below.

3. On this page, locate the soft button called “Verify & Activate” towards the middle portion of the page and

click this soft button.



4. The system will initially perform a channel verification check and upon successful verification, the GUI will

display the “Confirm Channel Activation” page requesting confirmation from the user to activate the channels

as shown below.

5. Click the “Confirm” soft button to begin the channel activation process. This could take a few minutes

depending on the number of configured channels. At the end of a successful channel activation process, the

“Required module not detected” alarm will disappear.



6. To confirm that all the spurious alarms have been cleared, click on Status menu and select the Alarms

option. With all the spurious alarms cleared, the page will look as shown below.



9. SNMP

TCP/IP NETWORK

HUB HUB

DSPbR SNMP SERVER

Figure 30: SNMP Interface to DSPbR

9.1 Main Features:

1. Supports Northbound SNMP v2 traps 2. Accepts up to two MIB server addresses and ports 3. Individual module level event selection for the SNMP trap 4. GUI based configuration

9.2 Configuration Procedure:

1. Load RF-INDUSTRIES-MIB and RFI-DSPBR-ALARM-MIB files on the MIB server 2. Find the MIB Server's IP address 3. Attach the DSPbR to the network and complete the web based login procedure 4. From the DSPbR GUI select “Configurations–Communications” menu (fig.1) 5. This will open the Communications Configuration page 6. On this page locate the heading call “SNMP Trap Alarm Reporting” 7. Under this heading enter the primary MIB server's IP address and port number 8. The default port number for SNMP is 162 9. The secondary MIB server's IP address is optional 10. Under the heading “Alarm reporting enable”, tick the check box call “SNMP Northbound Trap” 11. Use “Configurations–Alarm Matrix” menu to open the individual module alarm selection page(fig.2) 12. The alarm selection page is used to select the events on a module that will trigger the SNMP trap



9.3 Testing SNMP trap:

1. From the DSPbR GUI select “Maintenance – Test Alarms” menu (fig.3) 2. This will open the “Alarm simulation and Testing” page 3. On this page press the button call “Test Ctrl Alarms” to simulate alarm condition for the controller 4. Monitor on the SNMP server for the trap notification

9.4 MIB Message Format:

1. alarmRack: INTEGER – This field shows the Rack Number from 0 to 7 where 0 is the master rack 2. alarmModuleType: INTEGER -

Ref Generator 1

RFFE 2

RFBE 3

DSP 4

EXP 5

Power Supply 6

Controller 7

3. alarmModuleNumber: INTEGER –

Ref Generator, Power Supply and Controller 1

DSP and EXP 2

RFFE 1 to 6 based on the slot position in the rack

RFBE 1 to 16 based on the slot position in the rack

4. alarmStatus: INTEGER – This field shows the present status of alarm register 5. alarmDescription: INTEGER – This field shows the message string associated with the alarm 6. alarmState: INTEGER – This field show alarm condition OK or FAIL

FAIL condition 2

OK condition 1 7. alarmDateTime: - This field show the date and time when alarm occurred

Configurations – Communications Menu



Configurations – Alarm Matrix Menu (controller page)

Maintenance – Test Alarms



The Server Side Software we use for testing is called “Manage Engine MIB Browser”. It is available from the manufacturer’s website for download; http://www.manageengine.com/products/mibbrowser-free-tool/index.html

Following are the screenshots for this software RF-INDUSTRIES-MIB and RFI-DSPBR-ALARM-MIB loaded

An example Illustration of three trap events on the Trap Viewer

Details of one of the trap events

http://www.manageengine.com/products/mibbrowser-free-tool/index.html



Configurations, Communications Menu, Page 1

Configurations, Communications Menu, Page 2



10. Multi-Carrier Power Amplifier (MCPA)

10.1 Multi-Carrier Power Amplifier (MCPA) Operation

The RFI DSP based repeater (DSPbR®) is designed to accommodate up to eight RF power amplifier back-end modules (RFBE’s). Each RFBE module has two sides, Side A and Side B, with each side having a separate power amplifier. The power amplifiers in each RFBE module are capable of producing up to 46dBm output power per carrier (frequency band and modulation scheme dependent) when configured for a single carrier. While the DSPbR® is capable of up to 8 full power bi-directional channels, some installations do not require such high output power levels per carrier, typically in the Uplink mode facing the donor site. When the requirement calls for lower output power levels (typically ≤+15dBm per carrier) the DSPbR® can be configured to pass up to 12 carriers through a single power amplifier (MCPA) with a limit per chassis of a total of 12 bi-directional or 24 directional channels in MCPA Mode. This multi-carrier feature provides the following benefits over single-carrier operation:

Removes the requirement for external combining hardware normally required for multi-channel operation.

Reduction of the cost, weight and power consumption of the repeater as fewer RFBE modules are required.

Reduced output power per carrier for low power DAS systems and RF-over-fibre interfaces, eliminating the

need to reduce output power levels with external attenuators.

When the DSPbR® is configured to operate with multiple carriers on an RF output port, each carrier still has

individual and programmable gain, a selectable channel filter profile, gating and output power level settings below the

maximum allowable.

10.2 Performance

Multiple carriers passing through any power amplifier will produce unwanted intermodulation distortion (IMD) products. To ensure all interfering signals are within local regulatory limits the power per carrier in the DSPbR® must be accurately controlled. The DSPbR® has a sophisticated digital power control system which precisely limits the power level for each carrier, thus ensuring unwanted IMD products are always at predictable levels.

10.3 Power levels per carrier

The DSPbR® allows for configuration of power levels per MCPA carrier that will produce IMD products which exceed

regulatory limits, to cater for applications where regulatory limits do not apply (e.g. tunnels, underground mines or

remote areas where interference with other communications equipment operating on adjacent frequencies is not an

issue).



Figure 30: Example of RFBE’s performance with 12 carriers

The example represented in Figure 30 shows 12 carriers configured to pass through one RF power amplifier. The blue Australian ‘ACMA Compliant’ trace shows that with 13dBm per carrier, the worst case IMD products are not exceeding the required -30dBm level. The green USA ‘FCC Compliant’ trace shows the same RFBE module with an increased power per carrier capability of 21.5dBm (increased by 8.5dB), at worst case the IMD products are not exceeding the required -13dBm level. The difference between these two regulatory examples allows an additional 8.5dBm output level per carrier, but with a resulting 17dB increase in the level of IMD products. This corresponds to an increase in IMD products of 3dB for every 1dB increase in power per carrier through a DSPbR® RFBE module; a rule of thumb that can be used to predict RF output versus IMD levels for other regulatory or design requirements. NOTE: The results in Figure 1 show a worst case IMD scenario, since the carriers are equally spaced. Judicious spacing of carriers could improve the IMD performance of RFBE modules.

10.4 Number of carriers

When the number of carriers through a RFBE module is reduced, the IMD products decrease. This allows for an increase in the power per carrier while still complying with spurious emission limits.

Figure 31: Examples of RFBE’s with 8 and 4 carriers respectively



As can be seen in the illustration, when the number of carriers is reduced from 12 to 8, the power per carrier can be increased by 2dB and still comply with the example ACMA -30dBm spurious emission limit. If the number of carriers is further reduced to 4 (see Figure 3), the RF output power can be increased to 17dBm per carrier. NOTE: the plots shown above represent typical performance of DSPbR® RFBE modules, and were captured by continuously sweeping for 2 minutes in peak hold mode. Actual performance may vary between RFBE modules.

10.5 Configuring the MCPA Feature

MCPA Functionality in the DSPbR® is enabled in the Features page under the Maintenance tab in the GUI.

When enabled, the MCPA feature in the DSPbR will be allow the mapping of more than one specified channel to an elected RF Back End (RFBE). This process is configured in the Channels page under the Configuration tab in the GUI. In the following example, two frequencies have been assigned the Uplink RFBE (slot 1B).



Once configured such that more than one channel points to a selected BE (RFBE) in either UL or DL, and the “SAVE” and then “VERIFY & ACTIVE” process is followed.

The DSPbR will present the “Has the configuration been saved” popup message box to confirm that the “SAVE” process was followed.

Click “OK” to confirm it was.



The DSPbR will present the “Confirm Channel Activation Screen”

A pop up will appear to warn the user of the time it may take to load the configuration. Press “OK” to continue.

If the mapping is successful the Channel Configuration Completed screen will appear. Press “Back” and navigate to the “STATUS” Channels page to confirm configuration settings



11. Maintenance

11.1 Access

Access to the DSPbR should be restricted and an access alarm notification (door contact) can be generated using one of the external alarm interfaces and transmitted via any of the optional and available means. Refer to Alarm Interface circuit diagram and the Alarm Configuration page in the GUI.

11.2 Module Replacement

The CSC will auto configure RFFE or RFBE modules of the same type if replaced into the same slot as a previous RFFE or RFBE module. If the type / band is different, a manual re-configuration will be required. The DSP module can also be replaced whilst the DSPbR is powered, however all communications will be interrupted until such time as the DSP module is connected back into service within the sub-rack frame.

11.2.1 Module replacement self-check

To confirm connection and operation of a replaced or new DSP, RFFE or RFBE module, connect to the DSPbR via the required web browser log in and navigate to the Status\Current Hardware page under the status tab. For quick reference, the LCD panel on the front of the CSC module will indicate modules detected and enabled through the sequence described under Section 7.2

11.3 PSU replaceable fuses

For detailed information on replacing the internal replaceable PSU fuses, please refer to Section 5.3.2 of this manual The DC PSU has current limiting protective circuitry and therefore no replaceable fuses that may blow in a similar fashion to the AC PSU.

11.4 Fans and Fan filters

Temperature Management The hottest module within the DSPbR sub-rack frame adjusts the fan speed. All modules except for the CSC have temperature sensors. Low temperatures are not given limits and are therefore not alarmed. Both front mounted cooling fans have removable dust filters, which will require periodic cleaning. These filters are accessible from the front of the DSPbR buy carefully levering off the plastic fan covers by hand.

Figure 32: Fan cover removal



No special tools are required to remove the plastic fan covers and dust filters. A mild soap wash and dry should be sufficient to clean the dust filters. Should they be perished in any way, please replace them. The fan dust filter part number is located under the part number section of this user manual.

11.5 RF input and output port identification

It is very important to identify and mark for future reference the configured input ports on the BPF / RFFE modules and output ports of the RFBE / BPFM’s. These ports are allocated during the uplink and downlink channel configuration procedure via the GUI; refer to the Individual uplink and downlink channel configuration pages. A better understanding of the configuration options in terms of slot architecture is detailed in examples given in Annexure A. The configured port allocations can be viewed on the Individual channel status pages. Removable and reversible yellow plastic label cards are inserted into recessed apertures at the rear of the DSP, BPFM’s attached to the RFFE and RFBE modules. The 8-Way combiner filter block has provision for one of these yellow plastic label cards. Use a black fine tipped permanent marker to write the respective port allocations on the yellow plastic label cards. It is advisable to do this only after a successful configuration upload. The upper port is on the left hand side of the BPFM module is Side “A” (looking at the back of the DSPR from the rear) and the lower port on the right hand side of the module is Side “B”

Side B Port

Side A Port Blank plastic marking label

Figure 33: User defined Yellow Label Marking System



11.6 DSPbR spare modules and ancillary equipment part numbers

Part Numbers Description

DR1005A SUB RACK FRAME 4RU DSP

DR1011A DUST FILTERS FAN (PAIR)

DR1012A FAN GUARD (PAIR)

DR1013A BLANKING PANEL DSP REP

DR1014A LABEL SET YELLOW REUSE 10XFLTR/CMBR + 2XDSP

DR1072A PSU INLET MODULE 110VAC (C19 - 15A)

DR1071B PSU INLET MODULE 240VAC (C14 - 10A)

DR1073A PSU INLET MODULE DC

DR1074A FUSES 10A DELAY (10 PK) 20X5MM AC PSU

DR1061B PSU 110-240VAC

DR1065A PSU 48VDC

DR1066A PSU 24VDC

DR1064A POWER CORD AU IEC320-C14-10A

DR1063A POWER CORD US IEC320-C19

DR1041B CSC UNIVERSAL

DR1051A CABLE STD ETHERNET 2M RJ45 - RJ45

DR1052A CABLE CAN BUS 500MM RJ11-RJ11

DR1111A DSP MODULE 4 CHNL OUT 2 BAND IN EXPANDABLE

DR1121A DSP MODULE 4 CHNL OUT 2 BAND IN + FIBRE I/FACE

DR1112A DSP MODULE 8 CHNL OUT 3 BAND IN EXPANDABLE

DR1122A DSP MODULE 8 CHNL OUT 3 BAND IN + FIBRE I/FACE

DR1123A DSP MODULE 8 CHNL OUT 3 BAND IN + 2 x FIBRE I/FACE

DR1151A FIBRE INTERFACE EXP MOD

DR1160A FIBRE TRANSC MULTI-MODE

DR1161A FIBRE TRANSC S-MODE MP

DR1162A FIBRE TRANSC S-MODE HP

DR1164A CABLE FIBRE MM 1M

DR1165A CABLE FIBRE MM 2M

DRxxxxA CABLE FIBRE SM 1M

DRxxxxA CABLE FIBRE SM 2M

DR1022A REF GEN & AUX MODULE C/W GPS RX & CELL MODEM

DR1032A ANTENNA ACTIVE GPS

DR1033A ANTENNA CELLULAR MODEM MULTI-BAND 800-2100MHZ

DR1034A CABLE COAX RG142 500MM SMA(M)-SMA(M)




DR1291A RFFE 162+162MHz


DR1491A RFBE 162+162MHz


DR1201A RFFE 410+410MHZ

DR1401A RFBE 410+410MHZ

DR1601A BPFM 410+410MHZ

DR1801A COMB/FILTER 8-WAY 410MHZ



DR1604A BPFM 410+510MHz

























































Table 6: DSPbR module and parts table



11.7 Recommended minimum spares listing

For a single sub-rack DSPbR system, the recommended spares will be as follows;

1 PSU Module 24V DC 48V DC 110-240VAC

2 CSC Universal

3 DSP Module 4 Ch 2 Band Expandable 8 Ch 3 Band Expandable 4 Ch 2 Band Expandable + F/I 8 Ch 3 Band Expandable + F/I 8 Ch 3 Band Expandable + 2 x F/I

4 RF Gen Module RF Gen + Aux + Modem

5 RFFE Module 1 Spare module for each sub-band in use

6 RFBE Module 1 Spare module for each sub-band in use

7 SFP Module (Fibre links)

Table 7: Recommended Minimum Spares Listing

Note: Only one RFFE or RFBE replacement module per band is recommended where more than one module is used, it is very unlikely that passive components such as the Band Pass Filter modules or 8-Way combiner filter block modules will fail and therefore these are not included in the recommended spares list. The centre mounted plug in backplane within the DSPbR rack frame is integral to the sub-rack frame and is not listed separately. The DSPbR sub-rack frame is not on the minimum recommended parts list, but may be considered to be added if a complete set of spares is desired. Note: R F Industries Pty Ltd (RFI) has a broad duplexer, external combining, lightning protection, cables, connectors and antenna product range to support the DSPbR. Refer to our on-line product information www.rfiwireless.com.au or contact our sales office directly

http://www.rfiwireless.com.au/



12. FAQ

12.1 Connectivity:

12.1.1 TCP/IP Ethernet connection

Q: Is a standard or crossed Ethernet jumper cable used to connect a laptop/notebook directly to the DSPbR? A: Although the DSPbR will communicate via either a standard or crossed over Cat 5, 5e or 6 jumper cable, a

standard Ethernet jumper cable is provided with the DSPbR which is terminated both ends with RJ45 termination connectors to connect between the laptop/notebook. The front or rear mounted Ethernet port can be used to connect to the DSPbR.

12.1.2 GUI Interface - Compatible Web browser programs

Q: What web browser programs are compatible with the on-board web server? A: All standard web browsers used on OS platforms such as Windows, Linux and Mac.

Q: It appears that some of the GUI navigation pages are missing and or there is corrupt information displayed on the

GUI page, might this be a web browser compatibility issue? A: Possibly, however try clearing your internet pages cache via your tools tab prior to changing to another web

browser.

12.1.3 Master Slave DSPbR configuration

Q: In an expanded sub-rack frame configuration, will the Master via the GUI interface configure Front End and Back

End modules within the nominated slave configured DSPbR sub-rack frames? A: Yes, all the channel configuration is done via the nominated master DSPbR, therefore channel configuration and

status pages will not appear in the GUI navigation menu of the slave DSPbR’s.

12.1.4 RS232 and USB Interface

Q: What is the RS232 and USB interface on the front panel of the DSPbR CSC used for? A: Currently, only Command Line Interface (CLI) is available through the RS232 and USB connection interfaces,

which is done at factory level only. The TCP/IP RJ45 Ethernet connectivity for access to the GUI is intended for the customer interface.

12.1.5 SNMP Interface

Q: Is the DSPbR capable of communicating via SNMP? A: Yes, however this is only via North Bound traps to a dedicated SNMP server. The DSPBR is not enabled to

respond to South bound SNMP traffic. Agent MIB Files are available for the SNMP server.

12.1.6 Cellular Modem

Q: Is the internal battery back-up supply located in the CSC, used to provide back-up power to the cellular modem or

will this require an additional dedicated battery back up? A: The CSC internal single backup battery supplies power to both the controller and the cellular modem for up to 4

hours, this however has to be enabled via the GUI once installed.

12.1.7 Configuration via SMS

Q: Can the DSPbR be configured using SMS messaging? A: No. Although SMS’s are optional for sending alarm alerts, configuring the DSPbR using SMS’s is not a currently

available feature.



12.2 DSPbR Modules

12.2.1 General

Q: What will happen if either an RFFE and/or RFBE is removed or re-inserted whilst the DSPbR is on? A: The RFFE’s and RFBE’s are designed to be removed and inserted whilst the DSPbR is “on”, hence the term “Hot

Swappable”. Once inserted the module will communicate with the controller and establish its identity. The CSC will then auto configure the new or replaced module based on the previous module’s configuration if it is the same type of module and same slot. Q: What will happen if either the DSP or Ref Gen + Aux modules are unplugged and re-inserted? A: When you unplug the Ref Gen + Aux module, the system will lose reference and go into stand-by and then go

back live when you plug the Ref Gen + Aux back in. Similarly, when you unplug the DSP module the system will go quiet and resume normal operation about a minute after you have plugged the DSP module back in.

12.2.2 RFFE

Q: Can an RFFE module be supplied with only one board in one of the respective Sides? A: No, none of the RFFE’s or RFBE’s for that matter are currently supplied with only one side fitted.

Q: Is only one RFFE required for all channels in the same sub-band? A: Yes. If they are all in either the DL or UL and sourced from the same antenna or input, then only one RFFE is

required. You do not need one RFFE per channel. Q: Can Uplink and Downlink RFFE boards in different bands be paired within the same RFFE module? A: Yes, this is possible, different bands are available back-to-back, please refer to the parts list.

Q: Is the RFFE BPFM also used for RFBE’s? A: Yes, There is no difference between BPFM’s used on the front end of RFFE’s and the Back End of RFBE’s as

long as they are paired correctly for the relevant sub-band.

12.2.3 RFBE

Q: Can an RFBE module be configured for a single channel in one direction only? A: Yes. However as all RFBE’s have both sides of the module populated, one side will not be used unless it is

configured for the opposite direction in a bi-directional duplex channel. Q: Can uplink and downlink RFBE boards be paired within the same module? A: Yes, this is possible, not only in the same band but in two different bands, i.e. where frequency translating

between bands is used. Please note that the bolted on BPFM has to be frequency sub-band compatible.

12.2.4 Setting the Uplink and Downlink RFBE RF output power levels

Q: Can the RF output power levels of any channel be set within a dB? A: Yes! The incremented RF output power levels on any channel can be adjusted in 1dB steps from +30dBm to

+46dBm. Please note that this is the power setting out of the RFBE and does not include the insertion loss through the BPFM nor optional 8-Way Internal combiner filter. Some bands have lower output power capability When an internal 8-Way Combiner Filter Unit is fitted, this power level is adjusted according to the provided table under Chapter 5.3.9 Table 3 of this User’s Manual Q: Is the indicated level in dBm via the GUI, the actual output power level at the external connector at the rear of the

DSPbR? A: No! This indicated power level is the output from the RFBE module within a approx. 0.5dB margin. This level is

then fed either via the BPFM (Band Pass Filter Module) with the respective losses (+/- 1dB), which have to be added to estimate the output power at the rear of the DSPbR. An 8-Way internal combiner filter module would add an additional +/- 11.5dB of loss to the RFBE output figure.



12.2.5 Ref Gen + Aux

Q: How can it be ascertained whether the GPS clock reference disciplining has been activated and locked? A: When an active GPS antenna is connected to the appropriate SMA (F) port on the Ref Gen + Aux module, the

connection is auto-sensed. This auto-sensing and enabling function cannot actually be disabled. Should there be no GPS signal and the “Disable” radio button is activated in the “System Configuration” screen – a minor alarm will not be initiated. Should the “GPS Enable” radio button be activated and signal is not sensed from the GPS antenna input or the clock reference is not disciplined, then a minor alarm will be activated. Q: Is it possible to locate the DSPbR's position in the field via the GPS Receiver. A: No, this function has not been facilitated within the current DSPbR version.

12.2.6 External 10MHz clock reference:

Q: How is the external 10MHz clock reference initiated and checked to see if it is locking the clock reference? A: The external 10MHz signal reference is enabled through the Web browser GUI interface via the “Systems

Configuration” page “Ext Ref enable” button. Should this button be activated and the clock reference signal not disciplined via this means, then a minor alarm will be initiated. Q: How is the 10MHz clock reference carried to the Ref Gen + Aux modules of additional “Slave” sub-rack frames? A: Using a 50 Ohm coaxial jumper cable +/- 500mm in length terminated with SMA Male connectors. These are daisy

chained Ext Ref input to output. Q: Is the frequency disciplining from a master configured DSPbR linked to the slave configured DSPbR’s? A: Yes, this is facilitated and configured via the identified fibre link between them.

12.2.7 CSC

Q: Is there a backlight on the LCD display for dark environments? A: Yes.

Q: How is the backlight activated? A: By pressing the Mode Button located immediately underneath the LCD screen on the CSC module..

Q: What happens to the LCD display and backlight if the AC or DC power is turned off, A: The LCD display, backlight and information will continue to be powered by the backup battery if it has been

enabled via the GUI for as long as it provides sufficient power. Q: What are the functions of the LCD display? A: When the DSPbR is switched on the RFI Logo is displayed with a backlight on for up to 45 seconds.

After this initial period, the logo stays on and the backlight turns off. Pressing the Mode Button once will activate the backlight. With sequential Mode Button pressing, the following real time current information is written and displayed within the 4 lines of the LCD screen Second Press: Current IP Address/Subnet /Gateway/MAC address Third: Set Date and Time Fourth: PSU rail voltage / battery voltage Fifth: Modules detected and enabled Sixth: Module temperatures Seventh: RSSI levels per channel Depressing the mode button for more than 5 seconds will present the reset options screen.

Exit Menu Normal reset Factory reset

Factory+IP reset

LatestCheckpt



Q: In which module are the back-up batteries located? A: In the front located CSC module.

Q: How can the condition of the internal back up battery be checked? A: The internal backup battery voltage reading is currently available through the front panel LCD screen.

Q: Would the back-up batteries require periodic replacement? A: The back-up batteries are trickle charged when in service and meant to last the lifetime of the unit. They are not

considered field replaceable. Q. How is the back-up power supply in the CSC module enabled once the unit is installed in the field? A: Via a tick box on the “System Configuration” page of the GUI interface.

Q: What is the RS232 connector on the CSC used for? A: Factory access using CLI (Command Line Interface).

Q: What is the USB Type B port on the CSC used for? A: Factory access using CLI (Command Line Interface) and should the Ethernet ports not be usable, the user with

the assistance of the technical support team from RFI can interface for diagnostic and firmware uploading purposes. Q: What is the RJ11connector on the CSC used for? A: This is the CAN bus interface which is provisioned for alarm only connectivity between co-located master/slave

configured DSPbR’s in a possible future upgrade.

12.2.8 DSPbR Slot Architecture

Please refer to Appendix “A” the section of the DSPbR User’s Manual, illustrating slot architecture configuration possibilities. Q: Can an RFFE and RFBE be installed into any available slot within the sub-rack frame of the DSPbR? A: No, there are rules which need to be followed. The architectural rules are illustrated in Appendix A.

Q: How are the slots numbered? A: From left to right looking at the DSPbR from the rear.

Q: Into what slots can the RFBE’s be installed? A: This depends on whether you have a 4Ch 2 Band DSP module or an 8Ch 3 band DSP module.

The 4Ch 2 Band DSP module is installed into side A of the DSP module housing which is connected to slots 1, 2, 5 and 6, therefore installing an RFBE into slot 3, 4, 7 or 8 will not configure. The 8Ch 3 Band DSP module uses both sides of the DSP module housing which means that any of the available ports from 1 to 8 can be used. Q: Can an RFFE or RFBE be configured as both sides DL or UL? A: Yes

Q: Can an RFFE or RFBE be configured as one side UL and the other side DL?

A: Yes Q: Is there a preferred order in which the slots are populated into the DSPbR A: There is a preferred order for populating the available slots within the DSPbR and is illustrated in Appendix A. This

is however largely dictated to by whether the DSPbR has been configured with an internal uplink or downlink 8-Way combiner filter and or configured for split UL and DL in an RFFE/RFBE or contiguous UL and DL in the respective modules. Q: Will all slots take any module? A: No. Not all slots accommodate any module. Slots 1 to 8 accommodate RFBE’s with slot 9 accommodating only an

RFFE. Slots 7 and 8 are dual purpose RFFE or RFBE. Slot 10 accommodates only the DSP module.



Q: What are the minimum modules required in a DSPbR sub-rack for expansion purposes excluding band and

channel RFFE and RFBE modules? A: For a DSPbR sub-rack to function correctly for channel band expansion. The sub-rack requires the sub-rack

frame, which includes the internal centrally mounted mother board, a PILM module, matching the PSU voltage module, PSU Module, CSC Controller module, Ref Gen + Aux module, and a DSP module.

12.2.9 Channel Gating Threshold Configuration Settings

Q: What are the differences in the channel gating threshold methods? A: Three different channel gating threshold settings are available. Refer to the Channel Configuration “overview

screen” under the “Configure” tab of the GUI.

i) When a “0” is entered within the gating field, receiver gating is disabled.

ii) When gating is required to an absolute fixed level in dBm, a negative value is entered the gating is set to the fixed value as elected below 0dBm. For instance a fixed gating threshold level. As there is a 3dB hysteresis on a set gating figure the level required to open the gating is 3db higher. Gating is activated when the signal drops below the set level. For example a setting of –105 will set the channel to gate off at –105dBm and gate on at –102dBm.

iii) Where gating is required to track above a dynamic noise floor, a positive value is entered. This positive

setting must not be used for constant signals from a donor site (e.g. control channels) This positive value is the dB level delta above the noise floor at which gating should occur. The 3dB hysteresis applies and therefore a signal 3dB above this level will open the channel. Positive levels set too low can cause receiver chatter and must be adjusted in +1dB steps upward until the chattering ceases.

When gating is required to track a dynamic noise floor, the system will automatically track the lowest noise (and signal) level it receives (per channel) to set the noise floor. The noise averaging algorithm is fast acting with noise and signal levels lower than the current noise floor. The DSPbR cannot distinguish between noise and wanted signal, so if a continuous high level wanted signal is present, the noise level will eventually adjust to the wanted signal level. Therefore where a constant signal is present from a donor site (e.g. control channel), this gating method is not appropriate since the wanted signal will eventually be gated off. For constant RF level signals from a donor site, it is recommended that the gating should be set to an absolute level +/- 3dB below an estimated fade margin level. Positive gating (tracking level above the noise floor) is subjective and must be set and tested in the presence of dynamically changing site noise and not in a lab environment to get the best results.

12.2.10 DSPbR Channel / Band Expandability

Q: Is it possible to expand past the single band, 8 bi-directional channel configuration maximum of one DSPbR sub-

rack frame? A: Yes, a second or third or more slave DSPbR sub-rack frame can be added to a DSPbR sub-rack frame configured

as a master. This is achieved by connecting the two or more sub-racks using the DSP fibre interconnect optional facility. Each subsequent co-located sub-rack frame can be daisy chained via fibre expanding both band and channel capacity. Q: When a slave (2nd DSPbR) unit is used to add additional channels to the first 8 channels on a DSPbR, does the

second unit retain its own IP address? A: Yes, each DSPbR daisy chained for expansion will retain its own allocated IP address.

Q: When connected via the Ethernet connection to a configured master DSPbR, is it possible to have the same

connectivity via this port to all the connected slave DSPbR’s? A: No. Only the channel configuration and alarms of the respective slave DSPbR’s are accessible via the master

DSPbR.



12.2.11 Alarm Communication and Management

Q: How are alarms communicated from the DSPbR? A: Via SMS, configured email, SNMP and on board galvanically isolated N/O or N/C Major and Minor alarm relay

contacts accessible via a DB15 socket from the rear of the DSPbR on the RefGen + Aux module. Q: How is the alarm detail communicated via SMS? A: Human readable text.

Q: How are external alarms interfaced into the DSPbR and how are they communicated? A: Four (4) external alarm inputs are interfaced into the DSPbR via the DB15 socket on the RefGen + Aux module.

These alarm events are reported in the same way as the internal alarm events are reported. Q: On set up, can an alarm condition be artificially activated to test the alarm reporting method? A: Yes, an alarm test button is provided which is activated via the on board GUI.

Q: Is a MIB file available from RFI for an SNMP server? A: Yes. Ensure you get the latest MIB files relevant to the Base Line of firmware.

12.2.12 Temperature Measurement and front mounted cooling fans:

Q: Do the front mounted cooling fans require any maintenance? A: There are washable dust filter elements located under the front plastic covers at the opening aperture of both fan

assemblies. The plastic filter covers can be removed by hand. These filters can be periodically removed and washed in warm, mild soapy water, rinsed thoroughly, dried and replaced. Should the filter elements be torn or degraded in any way, they will require replacing. Please do not replace these filters with any other filter type. This may inhibit airflow and significantly increase the operating temperature. Q: What are the replacement part numbers for the plastic fan covers and dust filters? A: Part numbers for all the components and modules are provided in the relevant section of this User’s Manual.

Q: Can the DSPbR measure the ambient room or enclosure temperature? A: No. There is no specific ambient temperature sensor provisioned for the DSPbR.

Q: Where are the internal temperature measurement points within in the DSPbR A: Within each RFBE, RFFE, in each PSU Inverter, at either end of the PSU heat sink, DSP module and Ref Gen +

Aux module. Q: If the temperature within an inverter goes too high, will the inverter automatically shut down? A: Yes

Q: What temperature sensor or sensors drive the fan speeds? A: The fans speed is dependent on the hottest module (RFBE or DSP). The fan that blows the majority of the air over

the respective module will work the hardest to maintain a preferred temperature level. Q: Does the DSP, CSC and Ref Gen + Aux modules have temperature-sensing capability? A: All modules except the CSC have temperature sensors.

Q: Is there a minimum temperature consideration that is measured and alarmed? A: No, however it is unlikely that the temperature range will fall below –30 Deg C in an operational DSPbR which is

itself generating heat. Q: What thermal protection is provided to the PSU? A: There is a thermal shut down capability within each rail voltage inverter within the PSU.



12.3 AC Mains Power Supply

Q: What would the maximum current draw be when powering the DSPbR from a 110V AC power source? A: 14 Amps fully loaded and operating at max power (no internal combiner) on all channels.

Q: What would the maximum current draw be when powering the DSPbR from a 240V AC power source? A: 7 Amps fully loaded and operating at max power (no internal combiner) on all channels.

Q: Is the primary AC mains power supply fused and are the fuses changeable? A: Yes, the primary mains AC power supply is fused for both 110VA and 240VAC versions. Essentially the PSU is

the same for both 110V AC and 240VAC primary voltage versions, however the Power Inlet Module is different. Three AC fuses are located on the PSU module, which in turn is mounted into the 19” rack front mounting panel. The fuses are marked as F1, F2 and F3. All three fuses are accessible by loosening the relevant six front panel mounting screws as illustrated in the photograph and sliding the PSU unit out far enough to disconnect the power cable and remove the PSU unit in order to safely inspect and replace where necessary any of the fuses. Q: What alarm condition would be expected should any one of the three PSU fuses blow? A: Primary AC PSU Inverter F1 / F2 or F3 failed.

Q: What is the specification for the replacement fuses? A: All three replaceable fuses are the same, Refer to RFI Spare parts listing within this DSPbR’s User’s Manual.

Alternative fuse specification – Littelfuse Part no 0234010.P Cartridge 10A medium delay 20mm x 5mm OD ceramic fuse. Q: How should the DSPbR be connected to an AC power source? A: In Australia, it is recommended that the provided 2 metre IEC320-C13 power chord is plugged into a dedicated 10

Amp rated and switched mains socket. It is advisable to feed this socket via an independent 15 Amp rated “D” curve circuit breaker. A: In the USA, it is recommended that the provided 2.5 metre IEC320-C19 to 5-15P power cord is plugged into a

dedicated 15 Amp rated and switched mains socket, and that this mains socket is fed via an independent 15Amp rated “D” curve circuit breaker. Q: Is there an ON/OFF power switch on the DSPbR? A: No, the DSPbR has no ON/OFF switch either on the front, nor the rear, it is recommended that the DSPbR is

powered up and down via the wall socket mains switch into which the power cord is plugged. Alternatively via a circuit breaker, which should feed only the DSPbR repeater mains wall socket. Q: Should the RFBE or RF combiner output connectors be terminated prior to switching the DSPbR on? A: Yes. It is important, although there is an isolator in circuit, to protect the RFBE PA’s (RF Power Amplifiers) that the

outputs are all terminated into either the desired coax cable and antenna or 50 Ohm termination load. Q: Is it necessary to terminate the RFFE (RF Front End) prior to switching the DSPbR on? A: No, this is not necessary.

Q: Once the repeater has been connected and AC or DC power is supplied to the unit how long will it take to boot-up

and initiate the RFBE’s (RF Back End RF power amplifiers)? A: Approximately 45 seconds



12.4 DC Power Supply

Connecting the DSPbR Repeater to a DC power source Q: How should the DSPbR be connected to a DC power source? A: Via the 85Amp rated Phoenix HDFK 16A connector block situated at the rear of the DSPbR sub-rack frame

underneath the Ref Gen + Aux module using 6AWG gauge +ve / -ve identifiable cable for a 24VDC source and 10AWG cable for a 48VDC source. Q: What is the estimated current draw using a primary 48V DC supply with all downlink RFBE’s set to +45dBm and

uplink +40dBm? A: 2 Channel Bi-directional DSPbR – 9 Amps, 4 Channel Bi-directional DSPbR – 15 Amps, 6 Channel Bi-directional

DSPbR – 23 Amps, 8 Channel Bi-directional DSPbR – 30 Amps

12.5 Earthing

Q: What earthing facility is provided on the DSPbR? A: A dedicated M6 earthing stud is provided on the bottom right hand side looking at the DSPbR from the rear on the

respective ASC or DC PILM module. We recommend the use of a 16mm² green and yellow sheathed copper cable terminated with a crimped 16mm² / M6 hole cable crimp lug, connected to a common earthing point in the 19” rack.



13. Appendices DSPbR Slot Architecture – Typical Configurations













14. Supporting Information For additional support information on the DSPbR series products including;

DSPbR Product Brief DSPbR Application Notes DSPbR User Manual DSPbR Service Bulletins DSPbR Firmware File (*.FFP) DSPbR SNMP MIB Files

please visit the RFI website at:

http://www.rfiwireless.com.au/repeaters-rebroadcast/repeaters/pmr-repeaters.html

Test Drive the DSPbR GUI by visiting: http://203.46.35.190

Level 1: Username: user

Password: user

Level 2: Username: admin

Password: admin

Please note that this unit is not connected to a “live” network and may be test driven and programmed without impact. This unit may be off-line periodically for maintenance purposes or Internet connectivity outage.

If you cannot connect to this unit please contact your nearest RFI Sales office so we can ensure it is available for your test drive. Contact Information

If you would like more information on the DSPbR product and its applications, please contact your nearest RFI Sales Office.

For more information on RFI products, please visit us at http://www.rfiwireless.com.au/

http://www.rfiwireless.com.au/repeaters-rebroadcast/repeaters/pmr-repeaters.html

http://www.rfiwireless.com.au/



15. User Notes



Documents

Table of Contents - RFI Wireless · Australian Patent No. 2010236015 US Patent No. 8,787,827 User’s Manual Digital Signal Processor based Repeater Base Line 5.3.5 Document Number: