Flexi Multiradio BTS Product Overview and Modules Description

Flexi Multiradio BTS Product Overview and Modules Description

1TechVidhya:India's No 1. Professional Telecom Training Institute

Module objectives

– Understand the concept of Flexi Multiradio BTS– Describe the key feature of Flexi Multiradio BTS– Describe compatibility SW related to Flexi Multiradio– Describe the application options for the Flexi Multiradio BTS for capacity

solution and coverage solution – List of the differences/similarities compared to 2G Flexi EDGE and 3G Flexi

WCDMA– Explain the Flexi Multiradio BTS architecture and modules – List the modules of the Flexi Multiradio BTS– Describe the main function of each module in the Flexi Multiradio BTS– Describe the site equipment supported Flexi Multiradio BTS


Content

Introduction of Flexi Multiradio BTS GSM/EDGE

Flexi Multiradio BTS GSM/EDGE Architecture

Flexi Multiradio BTS GSM/EDGE System Module

Flexi Multiradio BTS GSM/EDGE RF Module

Flexi Multiradio BTS GSM/EDGE SW Compatibility

Flexi Multiradio BTS GSM/EDGE Transmission Sub module

Flexi Multiradio BTS GSM/EDGE Power Options


Introduction to Flexi Multiradio BTS GSM/EDGE


Introduction to Flexi Multiradio BTS Background (1/2)

Migration to LTE

Evolve to the ultimate next data & multimedia machine

Provide WCDMA and services in GSM bands

WCDMA refarming

Build OPEX optimized GSM sites prepared for future evolution

GSM New Sites, Expansions and Modernization


Introduction to Flexi Multiradio BTS Background (2/2)

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GSM UMTS LTE

Cheapest and widest range of terminals

Ultimate technology for spectral efficiency improvement

Global roaming

Broadest indoor, rural and global radio coverage

Best spectral efficiency available today

Widening terminal portfolio

Flat architecture

High integration level, low power consumption

Economies of scale through widest user base

For Voice and Data

Lowering cost per bit

Is it possible to have all these benefits in

one HW?

…..meet Flexi Multiradio BTS


Introduction to Flexi Multiradio BTS


• Flexi Multiradio BTS is a base transceiver station that is part of the Nokia Siemens Networks Flexi BTS platform for GSM/EDGE, WCDMA, and LTE networks.

• It is a multiradio or multicarrier BTS that can use all these network technologies either in dedicated or concurrent mode of operation

• Its modular design makes site acquisition and installation easy, and reduces the time needed for rolling out network coverage in a new area.

• It allows using existing site space efficiently, the existing Flexi BTS modules can be installed together with Flexi Multiradio BTS modules.

• The existing Flexi BTS cabinets and casings, power supplies, and the 3G Flexi System Module can be used with Flexi Multiradio modules.

Flexi Multiradio BTS GSM/EDGE Product Overview


2005/2006

Flexi WCDMA

Increased: Power Efficiency Radio performance Integration density Investment protection Flexibility Total Value of ownership

Flexi GSM/EDGE

2008

Flexi Multiradio site solutions

2010

Flexi Multiradio BTSGSM / WCDMA / LTE

New SM: GSM/EDGE high capacity

New RF: 900,1800 MHz

3sector RF module, 3x60W

RRH: (30W+30W), 60W

Flexi Multimode BTS (RU10)

•New SM: WCDMA/LTE

•New RF: 2100MHz

• 3 sector RF module, 3x 60W

• RRH 1x60W

WCDMA/LTE

2 sector RF1 sector RF

WCDMA SM

2 TRX RF

GSM SM


The evolution of Flexi BTS concept continues



GSM

EDGE

WCDMA

HSPA

:

LTE

Concurrent mode:Same Flexi BTS module operates simultaneously in two or more radio modes

Dedicated BTS HW

Radio features

O & M

BTS HW

Radio features

O & MRadio mode

Radio access functionality is shifted from dedicated hardware to software

Real concurrent mode and SW defined radio



RF ModuleSystem Module

Remote RF Head

Flexi Multiradio BTS

Site acquisition and construction principles

Com

mon

for

al

l rad

io

tech

nolo

gies

Antenna system / transport / power systems

Modular BTS platform

OROptional AC/BBU Module

Fle

xi B

TS

bu

ildin

g bl

ocks

Flexi Multiradio BTS Platform

Introduction to Flexi Multiradio BTS – Product Concept


System Module

RF Module

SW

Multimode SMMultiradio EDGE SM

3-sector RF

GSM/EDGE SW WCDMA SW

LTE SW

WCDMA BTS

Multimode SM

3-sector RF

Multimode SM

3-sector RF

LTE BTS

Multiradio EDGE SM

3-sector RF

GSM BTS

Multiradio EDGE SM

Multimode SM

3-sector RF

GSM/WCDMA/LTE BTS



RF Module sharing GSM-LTE

RF Module sharing WCDMA-LTE

Multimode System Module

WCDMA SW

3-sector RF

Module


EDGE 18/36 Carrier System

Module


WCDMA SW

3-sector RF

Module



LTE SW Multimode System Module

WCDMA/LTE SW

3-sector RF

Module


RF and System Module sharing WCDMA-LTE


LTE SW

3-sector RF

Module


Module

RF Module sharing GSM-WCDMA


Flexi Multiradio BTS in Concurrent Mode Operation



RF Module sharing GSM-LTE

RF Module sharing WCDMA-LTE


LTE SW

3-sector RF

ModuleBand 2



Module


WCDMA SW

3-sector RF

Module Band 2



LTE SW


WCDMA/LTE SW

3-sector RF

Module Band 1


RF and System Module sharing WCDMA-LTE

3-sector RF

ModuleBand 1

3-sector RF

Module Band 1

3-sector RF

Module Band 2


WCDMA SW

3-sector RF

ModuleBand 2



Module

3-sector RF

ModuleBand 1

RF Module sharing WCDMA-GSM

Concurrent Mode Operation with multiple frequency bands - Examples



High Capacity Flexi EDGE System Module 18/36TRX

High Capacity Multimode System Module (WCDMA/LTE)

3-Sector Multiradio RF Module (GSM/WCDMA/LTE)

• 1 Gbps throughput• Multiband support• Multimode support• Dedicated and concurrent

mode SW defined

• High Capacity (18/36 TRX)• Multiband support• Optimized for GSM/EDGE

• Highest integration density level • GSM/EDGE/WCDMA/HSPA/LTE

defined by SW• Dedicated and concurrent mode • 60W output per sector with

Multi Carrier Power Amplifier (MCPA)

3 sector RFM (GSM/WCDMA/LTE)

GSM/EDGESystem Module

WCDMA/LTESystem Module

3 main building blocks to a complete GSM/WCDMA/LTE Site

Introduction to Flexi Multiradio BTS General Characteristic


Flexi Multiradio BTS is the baseline for Multiradio solution

• Revolutionary BTS with weather-proof modules

• Installation in stacks, on walls, poles, in 19” racks or new flexi cabinets or legacy BTS cabinet

•Same modules for indoors and outdoors, macro- and microcellular sites

•Temperature range -33°C …+50 °C (performance guaranteed up to +50 °C), temporarily +55 °C

Capacity Solution

• 1 to 18/36* TRX in sectors under 1 BCF

Coverage Solution

• max output power 40/60** Watts RF, sensitivity -115.5 dBm (with 2-way UL diversity)

Shared Solution

• RF module can be shared with WCDMA/LTE



• * In addition to UTRA- and GSM-bands 850-band also covers iDEN system band. The bands included are operated separately and simultaneous operation does not need to be supported. SMR cositing is supported, but can be done using external filters.

• 3-sector RFM instantaneous bandwidth:• 1800: DL:20MHz; UL: 30MHz• 900, 1900: 20MHz• 850: 15MHz• 900 J-band: 12.5MHz

• RRH instantaneous bandwidth:• 900: DL: 20MHz; UL: 35MHz (full band) • 1800: DL: 20MHz; UL: 40MHz

Band RX Freq. Range TX Freq. Range GSM Channel Numbers

3GPP operating band

Duplex distance

850MHz 806-849 MHz* 851-894MHz* 128-251 V, VI, XVIII and XIX 45 MHz

900MHz 880-915 MHz 925-960 MHz 975-10230-124

VIII 45 MHz

900 MHzJ-band

890-915 MHz 935-960MHz 1-124 VIII partially 45MHz

1800MHz 1710-1785 MHz 1805-1880 MHz 512-885 III and IX 95 MHz

1900MHz 1850-1910 MHz 1930-1990 MHz 512-810 II 80 MHz

Supported frequency bands in Flexi Multiradio BTS:

Introduction to Flexi Multiradio BTSConformity to standards


• Conformity to 3GPP Standards:– GSM/EDGE: GERAN TS 45.005 (Rel.8), TS 51.021: MC BTS class 1 and 2 *

• For MC BTS Class 1 the following relaxations apply:– Number of the carriers/branch: Up to 3 carriers– Total output power/branch: Up to 60W (1dB tolerance allowed)

• No single carrier 3GPP specifications are guaranteed. – WCDMA: UTRA-FDDTS 25.104 (Rel.8), TS 25.141

– LTE: eUTRA TS 36.104 (Rel.8), TS 36.141

– Multi Standard Radio: 3GPP TS 37.104 Rel.9

*) MC BTS class 2 is characterized by a limit for TX 3rd order intermodulation of -60 dBm (average). Specification of TX spurious emissions outside the TX band will also be less stringent in an offset range from 2MHz to 10MHz from band edges.

Introduction to Flexi Multiradio BTSConstraints and compatibility


– Flexi Platform compatibility:• RFM’s are fully compatible with Flexi casings, cabinets and conversion/installation kits• Complies to Flexi power modules and NSN power systems for Flexi• Co siting shall be supported with: Ultra Site, Flexi System modules and BTS plus BTS• Flexi EDGE transmission plug-in units can be used within Flexi MR system module.• Can be synchronized with the existing Flexi system modules.• Compatible with Flexi alarm extension module (FSEB)• Radios shall be compatible with

– ESMB or ESMC 2G system Module– Rel 2 WCDMA SM– Flexi, Ultra site and BTS plus antenna line basic support. RRH does not have integrated support for MHA.

– Supported carrier combinations / antenna:

• Concurrent mode on single RF module

• Flexible power and bandwidth allocation via Net Act

Frequency 900MHz/1800/1900 MHz 850MHz/900MHz J-band

2G TRX´s 6+6+6 6+6+6

WCDMA carriers 4+4+4 2+2+2

LTE bandwidth 1.4/3/5/10/15/20 1.4/3/5/10

Concurrent mode(s) supported by HW

GSM/LTE,GSM/WCDMA, GSM/WCDMA/LTE, WCDMA/LTE

3+3+3GSM+10MHz

GSM/LTE, GSM/WCDMA, GSM/WCDMA/LTE, WCDMA/LTE

3+3+3GSM+10MHz

Output Power/sector RFM: 60W

RRH: 40W

RFM: 60W



# of carriers RFM

1 +47.8 dBm (60W)

2 +44.8 dBm (30W)

3 +43.0 dBm (20W)

4 +41.8 dBm (15W)

# of carriers RRH

1 +46.0 dBm (40W)

2 +43.0 dBm (20W)

3 +41.2 dBm (13.3W)

4 +40.0 dBm (10W)

Note! The allocated sum power/radio can be higher than 60W/branch in RFM or 40W/branch in RRH.

In this case allocation is only statistical output power. Nominal output power/branch is still 60W.

3-sector RFM GSM/EDGE output power

RRH GSM/EDGE output power

3-sector RFM WCDMA/LTE output power

RRH WCDMA/LTE output power

Nominal GSM/EDGE output power/TRX at antenna connector

# of TRX GMSK 8PSK 16/32QAM

1 +47.8 dBm (60W) +47.8 dBm (60W) +47.8 dBm (60W)

2 +44.8 dBm (30W) +44.8 dBm (30W) +44.8 dBm (30W)

3 +43.0 dBm (20W) +43.0 dBm (20W) +43.0 dBm (20W)

4 +41.8 dBm (15W) +41.8 dBm (15W) +40.6 dBm (11.6W)

5 +40.8 dBm (12W) +40.5 dBm (11.2W) +38.7 dBm (7.4W)

6 +40.0 dBm (10W) +38.9 dBm (7.8W) +37.2 dBm (5.2W)

Nominal GSM/EDGE output power/TRX at antenna connector

# of TRX GMSK 8PSK 16/32QAM

1 +46.0 dBm (40W) +46.0 dBm (40W) +46.0 dBm (40W)

2 +43.0 dBm (20W) +43.0 dBm (20W) +43.0 dBm (20W)

3 +41.2 dBm (13.3W) +41.2 dBm (13.3W) +41.2 dBm (13.3W)

4 +40.0 dBm (10W) +40.0 dBm (10W) +38.8 dBm (7.6W)

5 +39.0 dBm (8W) +38.7 dBm (7.4W) +36.9 dBm (4.9W)

6 +38.2 dBm (6.7W) +37.1 dBm (5.1W) +35.4 dBm (3.5W)

Maximum Carrier Output Power / configuration



– The RF performance of Flexi Multiradio BTS is specified at the antenna ports of the RF module

BTS Receiver Sensitivity

Sensitivity800/900/1800/1900

dBm

4-way diversity -118.0

2-way diversity -115.5

Single branch -112.7

RX sensitivity of Flexi Multiradio BTS

Flexi Multiradio RF Performance (1/2)

Introduction to Flexi Multiradio BTSRF Specifications

f1

Up to 6 GSM TRX´s per Sector

f2 f3 f4 f6f5

f1

5Mhz

f2

5Mhz

f3

5MHZ

f4

5Mhz

Up to 4 WCDMA carriers per Sector

Up to 20MHz LTE per Sector

X=1.4/3/5/10/15/20MHz

F1X Mhz

Up to 3+3+3GSM+max 10MHz LTE/WCDMA per Sector

f2f1

5Mhz

F

5Mhzf1 f3

F1

Frequency, BW (Tx/Rx) 850MHz, 15/15MHz 900MHz, 20/20MHz 1800MHz, 20/30MHz 1900MHz, 20/20MHz

GSM TRXs 6+6+6 6+6+6 6+6+6 6+6+6

WCDMA carriers 2+2+2 4+4+4 4+4+4 4+4+4

LTE bandwidth 1.4/3/5/10 1.4/3/5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10/15/20

Output power /sector 60W 60W 60W 60W

Concurrent mode(s)

supported by HW:

444 GSM+5MHz

333 GSM+10MHz

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE

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Introduction to Flexi Multiradio BTS BTS powering and power consumption


– Floating input voltage 48 VDC nominal• 38…60 VDC at the BTS input. 38...40,5 VDC only for temporary use

– Power consumption requirements for Flexi Multiradio are defined for certain BTS configurations with certain load:

• 650W for GSM 4+4+4 with 40% TS load and 15W output power/TRX

• 400W for WCDMA 1+1+1 with 50% traffic load at 20W output power

• 790W for concurrent GSM 2+2+2/WCDMA 1+1+1 with 20W output power/carrier/TRX

• 400W typical power consumption for RRH with 100% load and 2*40W output power


Configuration

O/P Power per TRX

Power Consumption

100% Load 50% Load 40% Load

2/2/2 20 760W 510W 460W

3/3/3 20 1010W 635W 560W

4/4/4 15 1010W 635W 560W

6/6/6 10 1010W 635W 560W

8/8/8 30 1940W 1190W 1040W

3 Sector RFM 925W, 100% Load

Power Consumption examples for various GSM configurations

ESMB with TRS unit : 85WESMC with TRS unit : 125W

2Tx, 40W+40W RRH 400W, 100% Load

Flexi Multiradio Power Consumption Values 1/2

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– Both GSM/EDGE and WCDMA/LTE have own separate system modules when the BTS is used in concurrent mode having several operational modes simultaneously.

– The radio modules (RFM and RRH) as well as the antenna lines could be shared between the system modules.

– The interconnections between the system modules and the radios can be routed through one system module or the connections can be separate from both system modules.

– In concurrent operation Flexi MR BTS is seen as two separate logical network elements with common radio resources.

Flexi Multiradio Architecture basic principles



– The System Module is the center of the system. It has all the external interfaces of the BTS (apart from the antenna interfaces). Main functions of the System Module are the Transport, BTS O&M, synchronization, power distribution and baseband processing functions. System Module interfaces support up to four Radio Modules with local power feed. Radio modules are connected to System Module through RP3-01 interfaces.

– The Radio modules and RRH’s contain both RF BB and RF functions. They are multistandard and multicarrier transceivers. RF BB includes RP3-01 interface with multifunctional ASICs and controller. In addition of TX/RX lineups module has integrated front end. RFM front end will be implemented with SW tunable filters. RRH will have fixed full band filters.

Main functions of the modules



• Smallest starting configuration with 2 modules: – System Module (ESMB/ESMC)– RF Module (RFM/RRH)

• System Modules are GSM/EDGE compliant, and RF Module can be shared with WCDMA/LTE in concurrent mode.

System Module (ESMB/C)(transport)

3HU

Radio Frequency Module 3HU

Simpler architecture with fewer units


Power modulePower module(optional)(optional)Optional

sub-module

Functionality of main modules with bypass or wideband combining

Power module(optional)

System module(transport)

Optical OBSAIOptical OBSAIControlControl DC PowerDC Power

BBUBBU

E1/T1 E1/T1 Flexbus Flexbus

Power AC/DC Power AC/DC

Abis IFAbis IF

48 VDC48 VDC

Software Tuned filtering, duplexing


Baseband ProcessingBaseband Processing

Multi Carrier PA (RF Processing)Multi Carrier PA (RF Processing)

RF

mo

du

le

Eg. RFMRF BasebandRF Baseband




RF BasebandRF Baseband




RF BasebandRF Baseband


Functionality of modules

BTS MGR WCDMAapplic


GSM/EDGEapplic

O&MO&M

CTRL (Control Plane)CTRL (Control Plane)

SynchronizationSynchronization

RFRF

BB (User Plane)BB (User Plane)

TransportTransport

PowerPower

Flexi WCDMA

SystemModule

Flexi EDGE

SystemModule

TRX Module

RF Module

Multiradio GSM/EDGE

applic

SystemModule

RF Module

Optical OBSAI

Ethernet (electric)

Flexi Multiradio


Flexi EDGE / Flexi WCDMA / Flexi Multiradio architectures comparison



Radio Module/RRH products :• RFM (Radio Frequency Module):

• FXCA: 850MHz; FXDA: 900MHz (E-GSM)• FXDJ: 900J-band (CDMA costing)• FXEA: 1800MHz; FXFA: 1900MHz

• RRH (Radio Remote Head):• FHDA: 900MHz; FHEA: 1800MHz

All radios are multi standard & multicarrier capable supporting: GSM / EDGE / eEDGE up to 6 carriers per pipe WCDMA up to 4 carriers per pipe LTE up to 20MHz

Flexi Multiradio BTS EDGE System Module (ESMB/ESMC)System Module is 2G specific, but can operate together with 3G/LTE system module in the same system. System module supports max. 36 EDGE carriers. Two separate product variants will be developed: ESMB for 18 carriers; ESMC for 36 carriers

Flexi Multiradio BTS 3*60W Radio Module (FXxA)

Flexi Multiradio BTS 2*40W Single sector Remote Radio Head (FHxA)

New Flexi Multiradio Modules



BTS control

GSM SW

WCDMA/LTE SW

BTS control

FDD WCDMA or LTE SW

Baseband

FDD WCDMA or

LTE SW

New Flexi Multiradio EDGE System Module (ESMB or ESMC)

Transport

ATM/IP SW

Transport

TDM SW

IF: E1/T1

IF: E1/T1/J1IF: STM-1/OC-

3

IF: FE/GbE

Baseband

GSM SW

Flexi rel. 2 SYS Module

AbisIF: PWE

Rel. 2.2 RFM (RRH)

RF SW

IF: Flex Bus

Iub /

S1

Flexi Multiradio with WCDMA/LTE (concurrent RF WCDMA/GSM or LTE/GSM)


Flexi Multiradio BTS GSM/EDGE Flexi EDGE BTS

Main Modules & Functionality

• ESMB/ESMC

– Centralized baseband processing

– Optical OBSAI for System Module to RF Module connection

• RF Module (FXxA) / Radio Remote Head (FHxA)

– MCPA (Multi Carrier Power Amplifier), no TX combining and BTS internal RF-cabling

– Generate maximum 6+6+6/4+4 TRXs, with max 1 pipe is 60/40 Watts (47.8/46 dBm). Each pipe has one Tx/Rx and one Rx div antenna port

–Front end filter integrated to the radio and SW tunable in RM

– New variant of 3G

• ESMA

– Baseband Processing Distributed to the DTRX

– Ethernet cable used for System Module to RF Module connection

• EXxA (Dual TRX)

– Two independent TRX, each max : 47 dBm (50 watts)

– not compatible for 3G

• ERxA (Dual Duplexer)

– Two independent filtering & duplexer with each has one Tx/Rx antenna port

– Need RF cabling between ERxA and EXxA

Flexi EDGE BTS vs. Flexi Multiradio BTS GSM/EDGE

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Flexi Multiradio BTS GSM/EDGE SW Compatibility

35TechVidhya: India's No 1. Professional Telecom Training Institute

Flexi EDGE / Multiradio EDGE SW


• RG10 (BSS14):• EP3 (Flexi EDGE only)

– Current main release of Flexi EDGE SW (EP3 MP4.0 to be released next)• EX3.1 (Flexi Multiradio EDGE only)

– Known also as ME1 internally– EX3.1 MP1.0 will contain some features delayed from EX3.1

• RG20:• EX4 (Flexi EDGE only)

– For Flexi EDGE only, main new features: OSC + Packet Abis– Part of EX3.1 code also included but not compatible with Flexi Multiradio EDGE.

• RG25:• EX4.1 (Flexi Multiradio EDGE and Flexi Edge)

– Brings the new EX4 features also support for Flexi Multiradio EDGE

• Note: As before, it is always recommended to use the latest compatible BTS SW release to gain the benefits of BTS SW corrections, even if it belongs to newer RG release.

– For example EP3 MP3.0 (part of RG10/BSS14) can also be used with S13 (part of BSS13).

Release naming

Flexi Multiradio BTS GSM/EDGE SW


Compatibility between Flexi Multiradio GSM/EDGE BTS, BSC, Net Act, LMU, FIFA, and Flexi Hub Manager SW

Compatibility (1/4)



To ensure compatibility in functionality, it is recommended that the BTS Manager and BTS SW are both from the same BTS release or CD of that release

Compatibility (2/4)



Compatibility between BTS, BSC and Surpass hiD 66xx Far-end PW device SW

The SURPASS hiD 66xx product family consists of three products, the 6630, the 6650 and the 6670 each supporting a different number of exchangeable line interface cards.

Compatibility (3/4)

Flexi Multiradio BTS GSM/EDGE System Module (ESMB/C)


RF Module - Medusa RFM in the system


ESMB

LTE SM

RF Module

Muksu 2

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MCU

RF Module

Muksu 2

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MCU

Gigabit Ethernet Switch

SG

MII

4x RP3 #1

4x RP3 #2

4x RP3 #3

4x RP3 #1

4x RP3 #2

4x RP3 #3

4x RP3 #4

NetworkProcessor

NetworkInterface

8x E1/T1

SG

MII

”ESCOT II”

Syn

c

Sync Sync

Midas ASIC

Faraday 6 Faraday 5 Faraday 4

DDRSDRAM

DDRSDRAM

DDRSDRAM

SG

MII

SR

IO1

SR

IO2

SG

MII

SG

MII

SR

IO1

SR

IO2

SR

IO1

SR

IO2

McB

SP

McB

SP

McB

SP

Midas ASIC


DDRSDRAM

DDRSDRAM

DDRSDRAM

SG

MII

SR

IO1

SR

IO2

SG

MII

SG

MII

SR

IO1

SR

IO2

SR

IO1

SR

IO2

McB

SP

McB

SP

McB

SP

Muksu 2LTE BBNetworkInterface

8x E1/T1

4x RP3 #1

4x RP3 #2

4x RP3 #3

4x RP3 #4

BTS System Module (ESMB/ESMC) Overview


– The BTS System Module (ESMB/ESMC) is a 2G specific system module in the BTS.

– ESMB/ESMC provides same main functions as Flexi Edge BTS System Module. Additionally it provides high capacity GSM baseband functionality for up to 36 TRX (ESMC), RP3-01 interfaces and related multiplexing/chaining functions.

• Transmission Interfaces and related termination functions.• Loop protection and cross connect.• Termination of Abis.• GSM Baseband functions.• BTS control functions.• Power input & Power distribution.• RP3-01 multiplexing/de-multiplexing and chaining.• Test support functions.• Casing and cooling.

BTS System Module (ESMB/ESMC) Construction and Interfaces


• 4 optical SFPs. OBSAI RP3-01 interface (3Gbps). (3 for RF modules, 1 for 3G/LTE system module connection or ESMB/ESMC chaining or alternatively all 4 for RF modules)

• 48VDC BTS power input terminals

• 5 Power distribution I/Fs (4 for co-located RFMs, and 1 extra for any additional modules)

• A slot for Integrated transport sub-module (various interface options available)

• Ports for Power Module Alarms, Local Management and Q1

• External Alarm Control port with 12 inputs and 6 outputs, or connectivity to EAC Ext. Module

• Two ports for external synch. input or synch. extension to other co located base stations

• Status-LED, Power LED and Power Push Button

• Grounding terminal

FPA Optical RP3 01Synch

outSynch

in EAC Q1

PWR

Transmission PIU

Power input

Ground

PWR PWR PWR AUX PWR

Status and Power LED

3 HU

LMP

Medusa BTS System Module (ESMB/ESMC) Characteristic


– High-capacity System Module for GSM/EDGE use• ESMB for bigger configurations up to 18 TRX• ESMC for bigger configurations up to 36 TRX• IP 65 protected• Temp range -35 to +55 degrees C

• – System Module is the centre of the system. Main Functions include:

• BTS Operations and Maintenance• Abis termination and Transport interfacing• Optical OBSAI connectivity and related multiplexing/chaining functions• Power distribution to the RF modules• High capacity GSM baseband functionality for up to 18/36 TRX• BTS Synchronization

Medusa BTS System Module (ESMB/ESMC)


• Flexi Multiradio BTS supports 24 inputs and 6 output controls– An optional module, FSEB, is needed for beyond 12 external alarm inputs

Flexi Power Alarm (FPA) interface for BBU alarms (6 alarm inputs)

EAC (External Alarm & Control) interface•12 alarm inputs•6 control outputs

EAC input mapping:

Input mapping for inputs 1..6

•1…6 EAC inputs are mapped to Flexi Power Alarm (FPA) connector at ESMB/ESMC

•Optional EBCA alarm cable is connected to FPA connector, typically used for BBU

Input mapping for additional inputs with System module only

•7...18 EAC inputs are mapped to EAC-connector at ESMB/ESMC

•Optional IP protected FSAA alarm cable 15 m instead of FSEB can be used here

Input mapping when optional FSEB, Flexi System External alarm module in use

•7...24 EAC inputs are mapped to optional FSEB

External Alarms and Controls in ESMB/ESMC



Functional Overview



Module HW Architecture (1/2)



• The System Module is separated into 3 main subassemblies (PCBs) + TRS plug-in unit:

• System Board (FESB)• Baseband Board (FEBB)• Power Board (FEPB)

• The main digital electronics are provided by following main components:• TRS plug-in units (FIPA, FIEA, FIFA, FIQA, FIYA, re-used from FlexiEdge BTS)• LLP (TRS interface/protocol termination, A-bis TRAU/PCU HDLC termination)• Network Processor (A-bis termination and control functions)• Midas ASIC, Faraday DSP (Baseband and RP3-01 related functions)• MUSIC FPGA (Synchronization, module support and cross-connect functions)• Gigabit Ethernet Switch (Internal bus function, test/local mgmt. access)• OCXO/DAC (BTS clock generation and tuning)

Module HW Architecture (2/2)

Mechanics Structure

Front perspective view

Side view with board distribution

BTS System Module (ESMB/ESMC)


Flexi Multiradio BTS GSM/EDGE RF Module(RFM/RRH)


RF Module - Medusa operation modes


• What is Medusa?• Medusa is a Multicarrier BTS Program• Medusa radio modules (TRX modules) are multicarrier and

multimode and can support– GSM carriers up to 6 carriers per pipe– Four WCDMA carriers each 5MHz BW– 20 MHz LTE (100RBs max)– Concurrent GSM/WCDMA use with 4 GSM carriers and one WCDMA carrier– Concurrent GSM/LTE use with 4 GSM carriers and one LTE carrier– Concurrent GSM/WCDMA/LTE use with 4 GSM carriers, one LTE and

WCDMA carrier – Concurrent WCDMA/LTE use

RF Module-Medusa RFM in the system


ESMB

LTE SM

RF Module

Muksu 2

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MCU

RF Module

Muksu 2

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MAIA

TX

MRX

DRX

STUFTX /MRX

DRX

MCU

Gigabit Ethernet Switch

SG

MII

4x RP3 #1

4x RP3 #2

4x RP3 #3

4x RP3 #1

4x RP3 #2

4x RP3 #3

4x RP3 #4

NetworkProcessor

NetworkInterface

8x E1/T1

SG

MII

”ESCOT II”

Syn

c

Sync Sync

Midas ASIC


DDRSDRAM

DDRSDRAM

DDRSDRAM

SG

MII

SR

IO1

SR

IO2

SG

MII

SG

MII

SR

IO1

SR

IO2

SR

IO1

SR

IO2

McB

SP

McB

SP

McB

SP

Midas ASIC


DDRSDRAM

DDRSDRAM

DDRSDRAM

SG

MII

SR

IO1

SR

IO2

SG

MII

SG

MII

SR

IO1

SR

IO2

SR

IO1

SR

IO2

McB

SP

McB

SP

McB

SP

Muksu 2LTE BBNetworkInterface

8x E1/T1

4x RP3 #1

4x RP3 #2

4x RP3 #3

4x RP3 #4

RF Module -Medusa RFM• Medusa RFM is a 3-branch multi-carrier multi-standard radio transceiver module with each

branch capable of transmitting and receiving• up to 6 GSM carriers with 400 kHz min carrier separation• up to 4 WCDMA carriers with 4.6 MHz min carrier separation• multi-carrier LTE signal with 1.4MHz, 3MHz, 5MHz, 10 MHz, 15 MHz and 20 MHz

carrier BW• Multi RAT operation with combination of GSM/WCDMA/LTE

Frequency/Bandwidth 900MHz/ 20 MHz 1800MHz/20MHz

2G TRX´s 6+6+6 6+6+6

WCDMA carriers 4+4+4 4+4+4

LTE bandwidth 1.4/3/5/10(15) 1.4/3/5/10/15/20

Concurrent mode(s) supported by HW

See Appendix D See Appendix D

Output Power/sector RFM: 60W RFM: 60W

• Concurrent mode on single RF module

• Flexible power and bandwidth allocation via NetAct

RF Module - RFM Product Codes


• FXCA Medusa 850• FXDA Medusa 900• FXDJ Medusa 900J• FXEA Medusa 1800• FXFA Medusa 1900

RF Module - RF Module (FXxA) 3*60W


• Optimized for 3 sector Macro BTS use.• 3G/LTE Upgrade with System Module change/addition &

multimode SW• 18 carrier (3x6) capacity with integrated Duplex-filter &

integrated OBSAI RP3-01 interface• Maximum 3*60W TOC output power on 20MHz band

(12.5MHz for 900MHz J-band and 850MHz)• 120W per sector with 2 Modules (e.g. Mimo)• Dedicated and concurrent mode• Flexible power and bandwidth allocation between the radio

technologies controlled by operator• Compliant to MC BTS (Class 2) 3GPP specification

– For MC BTS Class 1 the following relaxations apply:• Number of the carriers/branch: Up to 3 carriers• Total output power/branch: Up to 60W (1dB tolerance

allowed)• Flexi mechanics form function

Flexi installation options• Frequency variants for 900MHz full band, 900MHz J-band

(CDMA co-siting),1800MHz, 850MHz and 1900MHz

MCPA

Trip

le S

Tu

F

MCPA60W

Carrier7-12

Carrier1-6

60W

MCPACarrier13-18

60W

RFM

• < 25 kg• 3 HU• IP65• -35 to +55 °C

RFM

• < 25 kg• 3 HU• IP65• -35 to +55 °C

RF Module - Front Panel Labels


FAN/ Status TX Module

OPT 1 OPT 2 OPT 3

FAN/ Status TX Module

OPT 1 OPT 2 OPT 3

900/1800 Version

850/1900 Version

RF Module (RFM) Mechanical construction and external interfaces


– 3 RP3-01 OBSAI 3 Gbps interfaces– 3 TX/RX Antenna Interfaces (including AISG 2.0 support, Bias-T and VSWR

measurement)– 3 RX Antenna Interfaces (including Bias-T)– 3 Co-siting RX outputs– 48V DC PWR input

– External Alarm interface

PWR IN Ant 6Rx

Ant 5Tx/Rx

Ant 3Tx/Rx

Ant 1Tx/Rx

Ant 4Rx

Ant 2Rx

Ant 1Rx Out

Ant 3Rx Out

Ant 5Rx Out

EAC

OPT 1 OPT 2 OPT 3Fan / RF OffUnit

CLASS 1 LASER PRODUCT

External Interfaces

STuF mechanics including PSU input, PA power input, and LNA function

Modular PA mechanical assemblies w/extruded fin heatsinks

TRX mechanics w/TX, RX, and BB block functions on PWB

TRX sub assembly (three TRX blocks and BB block integrated to same PWB)

RF Module construction


STuF (SW Tuneable Filter): A mechanical filter (one on each branch or “pipe”) which is tuned with a small step motor, controlled automatically by BTS SW.

RF Module construction


RF Module -Radio Architecture (3-sector RFM shown)


MAIAASIC

1

PA1

RX1M

RX1D

MUKSU2ASIC

MAIAASIC

2

PA2

RX2M

RX2D

MAIAASIC

3

PA3

RX3M

RX3D

MCU

SFP

Ant1 (Tx/RxM)

Ant2(RxD)

Ant3 (Tx/RxM)

Ant4 (RxD)

Ant5(Tx/RxM)

Ant6(RxD)

RP3-01

FLASH

DDR2

MCU

VCXO

Supply input -48V

15 -32 V

SFP

Power Input and Power

Supply Assemblies

+5.3 VPOL (distributed) PSU1.0V/1.1V/1.2V Etc.

RF BB Front EndPA

Clk cleaner

RP1 clkRP1 Synch

RP3

Filter1

LNA

LNA

Clk distribution

CSSA

Ethernet

FAN control

cs, int, ctrl,GPIO, I2C

T

EAC Alarms

SFP

TX3

TX2

TX1

15 -32 V

15 -32 V

PDRX ( Forward feedback for DAPD)

TEST INTERFACE

JTAG

RS232Debug



TOPI 1

TOPI 2

TOPI 3

FAN assembly

Filter2

LNA

LNA

Filter3

LNA

LNA

Ext RX1

Ext RX3

Ext RX5

Ethernet

Ethernet

RF Module - functional blocks


– Radio Module is the 3-branch radio transceiver module. The module consists of three individual branches designed to transmit and receive multicarrier signals of multiple radio technologies concurrently.

– The module contains the necessary common functionality like the digital and control circuitry, RP3-1 interface and the needed DC/DC power conversion.

– Each branch contains the transmitter and receiver chains and the front end filters

– The front end filters are software tuneable filters.– For support of legacy site expansion cases, RFM has separate UL diversity

outputs for each branch so that the diversity can be shared between Flexi Multiradio BTS and a co-sited BTS. Diversity sharing requires the co-sited BTS operates in the same frequencies within the frequency band. The co-sited BTS can be at least NSN Ultra site, Flexi EDGE or BTS plus.

– The fans used for module cooling are replaceable.

Input PowerO

utpu

t Pow

er

Full SaturationLinear

Response

Operating Pointwith Predistortion

Operating Pointw/o Predistortion

Pav1 Pav2

Pp

ea

k1

Pp

ea

k2

By using linearisation, amplifier can be operated close to saturation power level, and thus with higher efficiency without detoriating linearity.

Predistortion realizes the linearization by adding a predistorting signal to the modulated baseband signal creating complementary nonlinearity compared to nonlinear transmit chain. Because of time variance (load, ageing, temperature, …) properties of analogue components, linearization system is made adaptive with a discontinuous feedback loop.

RF Module DAPD (Digital PreDistortion) Overview (1/3)


Power Amplifier Module

Digital Adaptive PreDistortion

Signal Source

Time-domain presentation

Frequency-domain presentation

Q

I

Q

I

Q

I

Q

I



DAPD Disabled

DAPD Enabled



RF Module - Front-End block diagram (3-sector RFM)


• Front-End submodule includes three duplexers and three diversity RX filters with LNAs and RF test loops. In addition RFM power supply assembly is located inside front end submodule. Front- End submodule is a band specific product.

• The purpose of the Front-End sub-assembly is to process air interface RF signals for selected channels.

• LNA assembly includes LNA, RF test loop, VSWR monitoring, internal O&M, AISG modem, Ethernet connection, filter tuning drivers and internal PSU.

TO RFBB FAN CTRL

PWRin

FilterCtrl

DetLSP

LSP

Current detect

Data Inj

Current detect

Tuningmech

Pipe 1

MCU

MEM

Ctrl

Temp

AISGModem Phy

DC/DCconverters

Main Ant

Div Ant

Surgeprotection

Rev polprotection

EMCfilter

15 -32 VDC/DC

15 - 32 VDC/DC

15 - 32VDC/DC

Pipe 2

Pipe 3

Common part

Power Input

Variable gain LNA 0-30 dB

VSWR Bias-TeeRXMout

RXDout

TXin

RXout

RFLOOP

5V3DC/DC

FANS

Power Supply

Flexi Multiradio BTS GSM/EDGE Radio Remote Head (RRH)


Radio Remote Head (RRH) RRH (FHxA) 2*40W


• Optimized for 1 sector Macro BTS use.• Supports MIMO with SW upgrade• 3G/LTE Upgrade with System Module change/addition &

multimode SW• Two individual branches for transmitting and receiving• Integrated Duplex-filter & integrated OBSAI RP3-01 interface• Maximum 2*40W output power per TRX• Dedicated and concurrent mode• Flexible power and bandwidth allocation between the radio

technologies controlled by operator• Compliant to MC BTS (Class 2) 3GPP specification

– For MC BTS Class 1 the following relaxations apply:• Number of the carriers/branch: Up to 3 carriers• Total output power/branch: Up to 40W (1dB tolerance

allowed)• Frequency variants for 900MHz and 1800MHz

RRH

• < 17 kg (target)• IP65• -35 to +55 °C

RRH

• < 17 kg (target)• IP65• -35 to +55 °C

X

LNA

Duple

xer

MCPATX

RX

LNA

Duple

xer

MCPATX

RX

RRH

Radio Remote Head (RRH) Interfaces


– 2 RP3-01 OBSAI 3Gbps interfaces

– 2 TX/RX duplex Antenna Interfaces

– 48V DC input, integrated class OVP

– External Alarm inputs (min 2 pcs)

– AISG 2.0 interface for RET– LMP/test port

Note! RF External connectors are not supported by FHxA RRH

External Interfaces

Radio Remote Head (RRH)


RX1M

MUSKSU 2ASIC

FSL MCU

SFP

Ant1

Ant2

RP

3-01

FLASH

RAM

MCU

VCXO

TX1

-48VIN

+5.3VPOL (distributed) PSU1.0V/1.1V/1.2V/1.8V/2.5V/3.0V/3.3V/ 5.3V

MTRX Assembly

Front-EndAssembly

Clk cleaner

MAIAASIC

2

SFP

CSSA

JTAG

Ethernet

LMP

EAC

LNA

RX1 ADC

RX2 ADC

RX2M

VSWR

Filter1

MAIAASIC

1

TX2Filter2

24V to 32V – 256 steps

PSU Filter andOVP

Test Loop

OVP

PSU

OVP

EA

C

PA

sub

-assy RET

MEDUSA RRH

24V

PSU24V FE DC

Voltages

Ethernet

LNA

PDRX 1

PDRX 2

TX1

RX1-M

RX2-M

RX1-D

RX2-D

RS-485

TX2

Radio Architecture (RRH shown)



– FHxA is a 2-branch remote radio head optimized for MIMO usage. Mechanically RRH is not based on the Flexi module BTS platform but it is based on the existing FRIF (Franklin) RRH and has the same look and feel.

– Similarly as in radio module the RRH contains also the necessary common functionality like the necessary digital and control circuitry, OBSAI interface and the needed DC/DC power conversion.

– RRH consists of two individual branches designed to transmit and receive multicarrier signals of multiple radio technologies concurrently.

– Each branch contains the transmitter and receiver chains and the front end filters. RRH has no receiver diversity.

– 48VDC input from System Module or external power source. RRH has integrated class 2 OVP.

– RRH uses natural convection cooling, i.e. it does not have cooling fans.

RRH functional blocks



– MUKSU ASIC:• Provides RP3-01 interface, data routing (IQ or hard bits), RP1 handling, reference

clock control and chaining function for the Radio Module• Internal interface for MAIA ASIC

– VCXO:• Provides reference clock for the Radio Module (synchronized to OBSAI through

MUKSU ASIC). – MCU:

• Radio Module configuration and control (MUKSU, MAIA, Filter Ethernet, PSU, synthesizers, AISG, TCS)

• Adaptation of DAPD– MAIA:

• DL and UL signal processing for GSM/EDGE/WCDMA/LTE radio technologies. More details in MAIA ASIC slides.

• ADC and DAC interfaces for TX and RX.• MUKSU interface

RF BB main functions



– RP3-01 interface• MUKSU interface (~RP3-01 like)

– Downlink main functions:• DL carrier handling including gain scaling, power ramping, 2G specific modulator• DL channel filtering, pulse shaping filters and sample rate conversion• DL up-conversion and multicarrier clipping• DAPD, DAPD correlation and gain control• DAC interface

– Uplink main functions:• ADC interface• AGC control, IQ imbalance correction• UL down-conversion• UL channel filtering, pulse shaping filters and sample rate conversion• UL carrier handling including gain scaling and AGC for WCDMA

– Configuration interface

MAIA ASIC main functions

Flexi Multiradio BTS GSM/EDGE Transmission sub-module


Transport Sub-modules

FIEA = 8 x E1FIPA = 8 x E1/T1 FIFA = 2 x

Flexbus

Transmission Submodule


• Optimized for tail and small chain/loop sites– Different sub-module variants for different interfaces (E1, T1, FB)– Flexbus interface – BTS integrated indoor unit for FlexiHopper Microwave

Radio family – Outdoor casing optional (IP55, -33…+55°C)

• Advanced features– Inbuilt cross-connect down to 16 kb/s– Supports loop protection and diversities– Integrated network management with NetAct

Flexi Multiradio System Module

FIQA = 4 x E1/T1 + 2 x 100 BT Fast ethernet + One optional gigabit Ethernet SFP module

FIYA = 4 x E1 + Two 100BT Fast Ethernet + One optional gigabit Ethernet SFP module

Integrated Transport (ITN) with Flexi Multiradio BTS GSM/EDGE

Transmission Submodule Types

Module name Interfaces Availability Remarks

FIPA 8 x E1/T1 EP 1.0 120/100Ω, RJ48

FIEA 8 x E1 coaxial EP 1.0 75Ω, SMB

FIFA 2 x Flexbus EP 1.0 TNC

FIQA

4 x E1/T1 (Balanced) + 2 x 100BT Fast Ethernet +

One optional gigabit Ethernet SFP module

EP 2.0 For Abis over IP/Ethernet using PWE3

FIYA

4 x E1 (Unbalanced) + 2 x 100BT Fast Ethernet +

One optional gigabit Ethernet SFP module

EP 2.0 For Abis over IP/Ethernet using PWE3

Transmission SubmoduleFIPA


• 8 x E1/T1 interfaces• balanced 120/100 Ω• 1 x RJ 48 connector per

IF

Transmission Submodule (FIEA)


• 8 x E1 interfaces• un-balanced 75 Ω• 2 x SMB connectors per IF

Transmission Submodule (FIFA)


• 2 x Flexbus interfaces• Impedance 50 Ω• 1 x TNC connector per FB IF

Transmission Submodule (FIQA)


– Four balanced E1/T1Interfaces– Two 100BT Fast Ethernet Interfaces– One optional gigabit Ethernet SFP

module– Up to 8 E1/T1 links embedded in

the Fast Ethernet links.– Line synchronization or packet

synchronization

Transmission Submodule (FIYA)


– Four unbalanced E1 Interfaces– Two 100BT Fast Ethernet Interfaces– One optional gigabit Ethernet SFP module– Up to 8 E1 links embedded in the Fast

Ethernet links.– Line synchronization or packet

synchronization.

Flexi Multiradio BTS GSM/EDGE Power Options


• System module distributes power to other modules

• All modules generate own internal voltages

• BTS powering may be supplied from:• Flexi Power AC/DC module

(FPMA) (with or without battery) providing 48VDC input to the power distribution

• Flexi Power DC/DC module (FPDA) (24/48VDC)

• Multi Integrated Battery Back-up (MIBBU)

• Flexi Power Rectifier Module (FPRA)

• Standard Site support cabinet

48VDC

RF module

RF module

RF module

System module

Flexi BTS Power Options Distributed power supply


RF module

Flexi BTS Power Options Flexi Power AC/DC Module (FPMA, 3HU)


• Power module provides the casing and cable connectors for 4 power sub-modules– input / output terminals, output DC and alarm cables

• Flexi Power AC/DC 200-240 V AC sub-module (FPAA)– 200-240 V AC 48V DC converter– 0…4 FPAA per Power module; 1kW power each– includes AC-filters

• Flexi Power Battery sub-module (FPBA)– gives minute-level back-up when AC mains are down– 0…3 FPBA per FPMA

+

-

48VDC output to BTSAC input cabling to

FPMA

AC feed to FPAA (3pcs)FPMA with 3 AC/DC sub-modules and 1 Flexi Power Battery

Flexi BTS Power Options


• Optional DC/DC converts from external 24V DC to internal 48V DC• 1 DC-DC module gives up to 2kW power, e.g. 2 DC-DC modules are required for

12 TRX configuration• Useful in swap-out scenarios

48V DC output

24V DC input

Flexi Power DC/DC 24V Sub-Module (FPDA, 2HU)



• MIBBU reused from Ultra Site WCDMA BTS. Is an alternative to FPMA as a power supply and BBU unit.• Provides the 48VDC voltage from external AC or DC voltage (batteries)• Max. output 4 * 1500W = 6 kW• One fully configured MIBBU can provide power for up to 24 TRXs• Compatible with 19” mechanics -> can be installed in Flexi cabinet installations• Is for indoor use -> Always requires a cabinet. In an outdoor cabinet, requires the FCSA housing module

(with an FCSA control card) to provide IP-protected and temperature-controlled space (can also be used for LTE units)

• MIBBU consists of:• Power Distribution Unit (WPUB or WPUC) including

– Control Unit– Max four Power Units i.e. rectifiers

(WPMB with WPUB or WPMC with WPUC), which also charge the batteries

– Optional batteries

NOTE: MIBBU not available for orderingafter 01/2009

FCSA

Multi Integrated Battery Back-up (MIBB)

Flexi BTS Power Options Flexi Power Rectifier (FPRA) (1/3)


– Is a new type of MIBBU– Provides the 48VDC voltage from external AC or DC voltage (batteries)– Compatible with Flexi BTS 19” mechanics and 3HU high. Can be used in Flexi cabinet

installations and without a cabinet.– Brings some new possibilities for Flexi applications:

• FPRA outside FCSA => more LTE space inside FCSA• FPRA inside FCOA => more space for Flexi modules inside the cabinet as no need for FCSA

• Consist of:• mechanics mountable to a 19” frame• Power distribution unit with scalable outputs for max. 2 BTSs and max. 3 battery strings• Control Unit (CU) for controlling the FPRA. Alarms generated by CU are normal EAC-alarms

and can be connected to ESMA via the standard EAC-interface or power alarm interface (FPA).

• Max. three 2 kW rectifiers (i.e. max output 3 * 2 kW = 6 kW) • Operating temperature range -33 to +55C• Wide operating voltage range: from 85 to 310VAC• Optional separate batteries (no space for batteries inside the FPRA module)

• IP55 compatible, suitable for use in an outdoor cabinet without FCSA module and for outdoor use without a cabinet with the module front and rear covers installed

IP54 Rectifier ModuleIP54 Controller Module (delivered with casing)

FPRA with/without Flexi covers (FMCA)

Casing with integrated DC distribution for rectifiers (provides IP55 protection to controller and rectifier modules when fitted with Flexi covers)

Flexi BTS Power OptionsFlexi Power Rectifier (FPRA) (2/3)


FCSA

Any 3rd party 19” ID cabinet Wall/Pole installation Stack installation

Flexi OD cabinet: FPRA inside FCSA

Flexi ID cabinet Ultra Site ID/OD cabinet

(sidewall mounting)Flexi OD cabinet: FPRA

outside FCSA

Together with battery box

(Floor/wall/stack)

Ultra Site ID cabinet

(roof mounting)



Flexi Power Rectifier (FPRA) (3/3)– Targeted Applications

Flexi BTS Power Options Separate battery backup system


• Separate full-blown battery backup system in its own cabinet with high power, backup capacity and long backup times can be used for bigger configurations and long backup times.

Flexi BTS Power Options FCOA with FCSA and MIBBU


FCSA

(shown without front panel)

MIBBU

(Control and Rectifiers)

(Batteries)+

Documents

Flexi Multiradio BTS Product Overview and Modules Description