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    MDRS 155/...-64/128 MLQAM ESDH Long-Haul

    Microwave Radio Systems

    Commissioning Instructions

    Release 2.3

    (RF/160 CI)Edition 09.2004

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    Marconi Communications GmbHD-71520 BacknangTelefon (07191) 13-0 Telefax (07191) 13-3212http://www.marconi.com

    Copyright 2004 by Marconi Communications GmbH(hierin bezeichnet als Marconi)nderungen vorbehalten Gedruckt in Deutschland

    Marconi, Marconi Communications, das Marconi Logo,Skyband, MDRS, MDMS und ServiceOn Access sindeingetragene Markenzeichenvon Marconi Communications GmbH.Windows ist ein eingetragenes Markenzeichen derMicrosoft Corporation, Redmond.

    Marconi Communications GmbH

    D-71520 BacknangTelephone +49 (7191) 13-0 Telefax +49 (7191) 13-3212http://www.marconi.comCopyright 2004 by Marconi Communications GmbH(herein referred to as Marconi)Specifications subject to change Printed in Germany

    Marconi, Marconi Communications, the Marconi logo,Skyband, MDRS, MDMS and ServiceOn Access aretrademarks ofMarconi Communications GmbH.

    Windows is a trademark of Microsoft Corporation,Redmond.

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    Commissioning Instructions Contents

    RF/160 CI I

    Contents

    1 Safety Instructions ....................................................................... 1-11.1 Application............................................................................................................................ 1-11.2 Protection class.................................................................................................................... 1-11.3 Operating voltage................................................................................................................. 1-1

    1.4 Rack installation................................................................................................................... 1-21.5 Grounding the rack.............................................................................................................. 1-21.6 ESD protection ..................................................................................................................... 1-31.7 Laser safety .......................................................................................................................... 1-41.8 RF interfaces......................................................................................................................... 1-6

    2 Checking the System Setup ........................................................ 2-12.1 Rack configuration............................................................................................................... 2-12.2 Antenna installation and alignment ................................................................................... 2-52.3 Antenna support................................................................................................................... 2-62.4 Waveguide connection........................................................................................................ 2-8

    2.4.1 Antenna side................................................................................................................... 2-82.4.2 Equipment side ............................................................................................................... 2-9

    2.5 Securing the waveguide .................................................................................................... 2-102.6 Wall feed-through............................................................................................................... 2-112.7 Grounding the antenna feeder line................................................................................... 2-122.8 Waveguide labelling........................................................................................................... 2-13

    3 Waveguide and Antenna Measurements .................................... 3-13.1 Reflection measurement at the waveguide....................................................................... 3-1

    3.1.1 Design and calibration of the test setup.......................................................................... 3-13.1.2 Description of reflection measurement ........................................................................... 3-2

    3.2 Polarization discrimination (XPD) measurement.............................................................. 3-3

    4 Commissioning ............................................................................ 4-14.1 Steps to be executed before system start-up................................................................... 4-1

    4.2 Adjusting the SISA address................................................................................................ 4-14.3 Interface configuration on the QTN2 module.................................................................... 4-34.4 Configuring 2 Mbit/s interfaces on RFCOH and SOH Access modules......................... 4-3

    4.4.1 Configuring the 2 Mbit/s interface of the RFCOH Access module.................................. 4-34.4.2 Configuring the 2 Mbit/s interface of the SOH Access module....................................... 4-5

    4.5 System startup and commissioning process ................................................................... 4-64.6 Service PC (LMT/MSP)........................................................................................................ 4-74.7 Aligning the antennas........................................................................................................ 4-11

    4.7.1 Disabling the ATPC function......................................................................................... 4-114.7.2 Disabling the modulation............................................................................................... 4-124.7.3 Antenna alignment ........................................................................................................ 4-134.7.4 Restoring the operational status................................................................................... 4-14

    4.8 Adjusting the radio hop ID ................................................................................................ 4-15

    4.9 Checking and recording of important configuration parameters ................................. 4-174.9.1 Operating mode ............................................................................................................ 4-174.9.2 Oscillator frequency of transmitter and receiver ........................................................... 4-284.9.3 Configuring the reference level of the main receiver .................................................... 4-29

    4.10 Diversity operation............................................................................................................. 4-304.10.1 Configuring the diversity receiver ................................................................................. 4-304.10.2 Length compensation.................................................................................................... 4-32

    4.11 Configuring service channels........................................................................................... 4-414.11.1 Configuring service channels in the SOH Access Module ........................................... 4-424.11.2 Configuring service channels in the SOH Extension (Ext.) module ............................. 4-474.11.3 Configuring service channels in the RFCOH Access module ...................................... 4-494.11.4 Configuring service channels in the EOW module ....................................................... 4-53

    4.12 Configuring the QTN2 module.......................................................................................... 4-55

    4.13 ECC Gateway configuration.............................................................................................. 4-574.14 Measuring values displayed by the Service PC.............................................................. 4-59

    4.14.1 Tx measuring values..................................................................................................... 4-594.14.2 Rx measuring values .................................................................................................... 4-60

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    Contents Commissioning Instructions

    RF/160 CIII

    4.15 Alignment of systems with protection switching configuration................................... 4-614.15.1 Alignment using the Service PC ................................................................................... 4-614.15.2 Overall alignment .......................................................................................................... 4-634.15.3 Checking alignment values........................................................................................... 4-654.15.4 Selective alignment....................................................................................................... 4-664.15.5 Alignment with hot standby or 1+1 configurations without occasional traffic ............... 4-694.15.6 Alignment errors............................................................................................................ 4-69

    4.16 Configuring and testing 1 + 1 HSB protection switching systems............................... 4-704.16.1 Hardware switchover .................................................................................................... 4-704.16.2 Software switchover...................................................................................................... 4-71

    4.17 Terminating the commissioning process........................................................................ 4-734.17.1 Recording configuration parameters............................................................................. 4-734.17.2 Recording system data ................................................................................................. 4-75

    5 Required Measuring Units and Accessories .............................. 5-15.1 Systems without optical interfaces.................................................................................... 5-15.2 Systems with optical interfaces.......................................................................................... 5-3

    6 After-Sales Service....................................................................... 6-1

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    Commissioning Instructions Figures

    RF/160 CI III

    Figures

    Fig. 1-1: DC port Sub-D , 3-pin, male............................................................................................. 1-1

    Fig. 1-2: Rack installation............................................................................................................... 1-2

    Fig. 1-3: Protective grounding point ............................................................................................. 1-2

    Fig. 1-4: Bracelet contacts.............................................................................................................. 1-3

    Fig. 1-5: Laser class........................................................................................................................ 1-4

    Fig. 1-6: Optical SPI interface module........................................................................................... 1-5

    Fig. 1-7: RF interfaces..................................................................................................................... 1-6

    Fig. 2-1: Card slots in the system racks ....................................................................................... 2-1

    Fig. 2-2: 14+2 configuration - Equipment with modules ............................................................. 2-2

    Fig. 2-3: Channel assignment plan in a 14 +2 configuration ..................................................... 2-2

    Fig. 2-4: Address connector (Sub-D, 15-pin, female) .................................................................. 2-3

    Fig. 2-5: RPS-C protection switching unit (front and rear side) ................................................. 2-4

    Fig. 2-6: Antenna installation and alignment................................................................................ 2-5

    Fig. 2-7: Antenna support PS2m, PS3m........................................................................................ 2-6

    Fig. 2-8: Antenna support PS1.8m................................................................................................. 2-6

    Fig. 2-9: Antenna support PE2x2................................................................................................... 2-7

    Fig. 2-10: Antenna support PS1.2.................................................................................................... 2-7

    Fig. 2-11: Connecting the waveguide to the antenna.................................................................... 2-8

    Fig. 2-12: Connecting the waveguide to the equipment................................................................ 2-9

    Fig. 2-13: Waveguide installation .................................................................................................. 2-10

    Fig. 2-14: Wall feed-through for waveguides and cables............................................................ 2-11

    Fig. 2-15: Grounding the antenna feeder line (waveguide)......................................................... 2-12

    Fig. 2-16: Marking the antenna feeder line (waveguide) ............................................................. 2-13

    Fig. 3-1: Test setup for reflection measurement (calibration) .................................................... 3-1

    Fig. 3-2: Reflection measurement at the waveguide ................................................................... 3-2

    Fig. 3-3: Polarization discrimination measurement..................................................................... 3-3

    Fig. 4-1: SISA0-N module layout.................................................................................................... 4-2

    Fig. 4-2: RFCOH Access module layout........................................................................................ 4-4

    Fig. 4-3: SOH Access module layout............................................................................................. 4-6

    Fig. 4-4: AGC voltage versus receive level................................................................................. 4-13

    Fig. 4-5: Length compensation in diversity operation .............................................................. 4-33

    Fig. 4-6: Notch displayed at the spectrum analyzer .................................................................. 4-34

    Fig. 4-7: Compensation with one notch using the spectrum analyzer .................................... 4-35

    Fig. 4-8: Compensation with two notches using the spectrum analyzer ................................ 4-35Fig. 4-9: Notch shown by the spectrum analyzer before execution of the single steps........ 4-37

    Fig. 4-10: Notch shown by the spectrum analyzer after execution of 20 single steps ............ 4-37

    Fig. 4-11: Length compens. example with two notches using the spectrum analyzer............ 4-38

    Fig. 4-12: Sweep charact. at the spectr. analyzer with an exact length compensation ........... 4-39

    Note:

    Some of the systems depicted in this document include options which do not belong to the normaldelivery scope and have to be explicitly ordered.Modifications of technical contents and characteristics reserved.

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    Figures Commissioning Instructions

    RF/160 CIIV

    This page has been left blank for editorial reasons.

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    Commissioning Instructions Key Words

    RF/160 CI V

    Key words

    Key word 1-1 Operating voltage.................................................................................................... 1-1

    Key word 1-2 Rack installation...................................................................................................... 1-2

    Key word 1-3 Grounding the rack ................................................................................................. 1-2

    Key word 1-4 ESD protection......................................................................................................... 1-3

    Key word 1-5 Laser ......................................................................................................................... 1-4

    Key word 1-6 RF interfaces............................................................................................................ 1-6

    Key word 2-1 Rack configuration .................................................................................................. 2-1

    Key word 2-2 Coding pins of the address connector.................................................................. 2-3

    Key word 2-3 RPS-C addressing ................................................................................................... 2-4

    Key word 2-4 Antenna installation ................................................................................................ 2-5

    Key word 2-5 Antenna support...................................................................................................... 2-6

    Key word 2-6 Waveguide connection ........................................................................................... 2-8

    Key word 2-7 Securing the waveguide ....................................................................................... 2-10

    Key word 2-8 Wall feed-through.................................................................................................. 2-11

    Key word 2-9 Grounding the antenna feeder line...................................................................... 2-12

    Key word 2-10 Waveguide labelling.............................................................................................. 2-13

    Key word 3-1 Reflection measurement......................................................................................... 3-1

    Key word 3-2 Polarization discrimination .................................................................................... 3-3

    Key word 4-1 Adjusting the SISA address ................................................................................... 4-1

    Key word 4-2 Interface configuration on the QTN2 module ....................................................... 4-3

    Key word 4-3 Configuring the 2 Mbit/s interface of the RFCOH Access module..................... 4-3

    Key word 4-4 Configuring the 2 Mbit/s interface of the SOH Access module.......................... 4-5

    Key word 4-5 Service PC................................................................................................................ 4-7

    Key word 4-6 SISA network manager ........................................................................................... 4-7Key word 4-7 Disabling the ATPC function................................................................................ 4-11

    Key word 4-8 Sending an unmodulated IF carrier..................................................................... 4-12

    Key word 4-9 Antenna alignment ................................................................................................ 4-13

    Key word 4-10 Radio hop and polarization ID.............................................................................. 4-15

    Key word 4-11 Operating mode..................................................................................................... 4-17

    Key word 4-12 Overhead Access Unit .......................................................................................... 4-17

    Key word 4-13 Configuring SISA0-N............................................................................................. 4-18

    Key word 4-14 Configuring the transmitter.................................................................................. 4-19

    Key word 4-15 Configuring the main receiver ............................................................................. 4-20

    Key word 4-16 Master / Slave setting............................................................................................ 4-20

    Key word 4-17 Configuring the modulator ................................................................................... 4-21

    Key word 4-18 Configuring the demodulator............................................................................... 4-21

    Key word 4-19 Configuring the DPU / RPS STM-1....................................................................... 4-22

    Key word 4-20 Loopback................................................................................................................ 4-23

    Key word 4-21 Line protection....................................................................................................... 4-24

    Key word 4-22 Equipment protection ........................................................................................... 4-25

    Key word 4-23 SDH processing..................................................................................................... 4-26

    Key word 4-24 Additional channels .............................................................................................. 4-27

    Key word 4-25 Tx / Rx oscillator frequency ................................................................................. 4-28

    Key word 4-26 Reference level ...................................................................................................... 4-29

    Key word 4-27 Configuring the diversity receiver....................................................................... 4-30

    Key word 4-28 Adjusting the modulation of RXD........................................................................ 4-31

    Key word 4-29 Length compensation = Delay compensation with space diversity ................ 4-32

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    Key Words Commissioning Instructions

    RF/160 CIVI

    Key word 4-30 Service channels (OHAU) ..................................................................................... 4-41

    Key word 4-31 Activating continuous data monitoring .............................................................. 4-42

    Key word 4-32 Activating the SOH with 4x64 kbit/s .................................................................... 4-43

    Key word 4-33 Defining the use of DSC1 in the SOH for a QTN2 or an external signal .......... 4-43

    Key word 4-34 Activating the 2048 kbit/s WSC in the SOH ........................................................ 4-44

    Key word 4-35 Defining the protection of the 2048 kbit/s WSC in the SOH.............................. 4-44Key word 4-36 Transmitting a 64 kbit/s service channel in the E1 byte of the SOH................ 4-45

    Key word 4-37 Defining the use of SOH byte E1 for transmit. an EOW#1 or ext. signal ......... 4-45

    Key word 4-38 Transmitting a 64 kbit/s service channel in the F1 byte of the SOH................ 4-46

    Key word 4-39 Defining the use of SOH byte F1 byte for transm. an EOW#2 or ext. signal... 4-46

    Key word 4-40 Activating the DCCR//DCCM in the SOH............................................................. 4-47

    Key word 4-41 Defining protection switching of ECC channels in the SOH............................. 4-47

    Key word 4-42 Activating E2 1x64kbit/s in the SOH.................................................................... 4-48

    Key word 4-43 Displaying 4/8x64 kbit/s service channels transmitted in the RFCOH ............ 4-49

    Key word 4-44 Displaying the WSC 2048kbit/s interface of RFCOH.......................................... 4-49

    Key word 4-45 Activating RFCOH with 4x64 kbit/s...................................................................... 4-50Key word 4-46 Defin. the use of DSC1 in RFCOH for transm. an EOW, QTN or ext. signal.... 4-50

    Key word 4-47 Activating the RFCOH with 8x64 kbit/s ............................................................... 4-51

    Key word 4-48 Defining protection switching of RFCOH 8x64kbit/s......................................... 4-51

    Key word 4-49 Activating 2048 kbit/s WSC in the RFCOH.......................................................... 4-52

    Key word 4-50 Defining protection switching of 2048kbit/s WSC in RFCOH ........................... 4-52

    Key word 4-51 Activating 2/6-wire PSTN connections to the EOW ........................................... 4-53

    Key word 4-52 Configuring QD2/SISA-K....................................................................................... 4-55

    Key word 4-53 Configuring the ECC Gateway module ............................................................... 4-57

    Key word 4-54 MSP measuring values of the transmitter........................................................... 4-59

    Key word 4-55 MSP measuring values of the receiver................................................................ 4-60

    Key word 4-56 Alignment ............................................................................................................... 4-61

    Key word 4-57 Overall alignment .................................................................................................. 4-63

    Key word 4-58 Checking alignment values.................................................................................. 4-65

    Key word 4-59 Selective alignment............................................................................................... 4-66

    Key word 4-60 Alignment with hot standby or 1+1 configurations ........................................... 4-69

    Key word 4-61 Alignment errors.................................................................................................... 4-69

    Key word 4-62 Protection switching ............................................................................................. 4-70

    Key word 4-63 Tx-side switchover ................................................................................................ 4-71

    Key word 4-64 Rx-side switchover................................................................................................ 4-72

    Key word 4-65 Recording configuration parameters .................................................................. 4-73

    Key word 4-66 Saving the configuration parameters to disk ..................................................... 4-74

    Key word 4-67 Recording system data......................................................................................... 4-75

    Key word 5-1 Measuring units without optical ports .................................................................. 5-1

    Key word 5-2 Measuring units with optical ports ........................................................................ 5-3

    Key word 6-1 Service...................................................................................................................... 6-1

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    Commissioning Instructions Abbreviations

    RF/160 CI VII

    Abbreviations

    A ACAP Adjacent-Channel Alternate-Polarized Operation (corresponds to ACDP mode)

    ACDP Adjacent Channel Dual-Polarized (corresponds to ACAP mode)

    ADR Address (data and module address)

    AGC Automatic Gain Control

    AIS Alarm Indication Signal

    ATDE Adaptive Time Domain Equalizer

    ATN Analog Terminal Network

    ATPC Automatic Transmit Power Control

    AU-AIS Administrative Unit AIS

    B BAT Battery Input (DC input)

    BB Baseband

    BER Bit Error Ratio

    C CALL Call

    CAN Controller Area Network (internal bus system)

    CBN Channel Branching Network

    CCDP Co-Channel-Dual-PolarizedCL Clock

    CMI Coded Mark Inversion

    CP Connection Panel

    CR Clock Reference

    D DCC Data Communication Channel

    DCCR DCC of RSOH

    DCCM DCC of MSOH

    DFM Dispersive Fading Margin

    DIV Diversity

    DIPL Diplexer

    DM Demodulator

    DPU Data Processing UnitDRS Digital Microwave Radio System

    DSC Digital Service Channel

    DTN Digital Terminal Network (interface modem)

    DTMF Dual Tone Multiple Frequency dialling procedure

    E EA PS Equipment Alarm PS

    EA RX Equipment Alarm RX

    EA RU Equipment Alarm RU

    EA TX Equipment Alarm TX

    ECC Embedded Control Channels

    EMC Electromagnetic Compatibility

    EMI Electromagnetic Interference

    EOW Engineer Orderwire

    ESD Electrostatic DischargeETSI European Telecommunications Standards Institute

    EXATN Extension Analog Termination Network

    EXT SET Extended Handset

    F FD Frequency Diversity

    FEC Forward Error Correction

    FP Fuse Panel

    G GND Ground

    H HF High Frequency

    HSB Hot Standby

    I IF Intermediate Frequency

    IM Interface Module

    INT-A Internal Module Alarm - urgentINT-B Internal Module Alarm - non-urgent

    L LA/EA RX Line&Equipment Alarm RX

    LA RX Line Alarm RX

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    Abbreviations Commissioning Instructions

    RF/160 CIVIII

    LA TX Line Alarm TX

    LA-TX-BIT Line Alarm TX Bit

    LMT Local Maintenance Terminal (Service PC)

    LOF Loss Of Frame

    LON Local Operator Network (internal bus system)

    LOP Loss Of Pointer

    LOS Loss Of SignalLSS Loss Of Sequence Synchronization

    M MAINS Mains power (AC mains input)

    MAP Mapping function

    MD Modulator

    MLQAM Multilevel Quadrature Amplitude Modulation

    MS-AIS Multiplex Section AIS

    MSOH Multiplex Section Overhead

    MSP Multiplex Section Protection

    MST Multiplex Section Termination

    MU Modem Unit

    N NFD Net Filter Discrimination

    NO Normally Open relay contactNC Normally Closed relay contact

    O OH Overhead

    OHA Overhead Access

    OHAU Overhead Access Unit

    O&M Operation and Maintenance

    OOF Out Of Frame

    OP Operation Channel

    OSC Oscillator

    OT Occasional Traffic

    P PCB Printed Circuit Board

    PDH Plesiochronous Digital Hierarchy

    PI Physical Interface

    PR Protection ChannelPS Power Supply

    PSTN Public Subscriber Terminal Network

    PSU Protection Switching Unit

    POWER Power

    Q QAM Quadrature Amplitude Modulation

    R RBER Residual Bit Error Ratio

    RC Remote Control

    RDI Remote Defect Indication

    REI Remote Error Indication

    RF Radio Frequency

    RFCOH Radio Frame Complementary Overhead

    RFU Radio Frequency UnitROW Regenerator Order Wire

    RPS Radio Protection Switching

    RPSC Radio Protection Switching Central Unit

    RPSI Radio Protection Switching Interface

    RRTF Radio Regenerator Transport Function

    RSL Receive Signal Level

    RSOH Regenerator Section Overhead

    RST Regenerator Section Termination

    RTF Regenerator Transport Function

    RTFE Regenerator Transport Function - Electrical

    RTTF Radio Terminal Transport Function

    RU Radio Unit

    RX Receiver

    RXD Diversity Receiver

    S SAW Surface Acoustic Wave

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    Commissioning Instructions Abbreviation

    RF/160 CI IX

    SCU Service Channel Unit

    SD Space Diversity

    SDH Synchronous Digital Hierarchy

    SNCP Sub-Network Connection Protection

    SNMP Simple Network Management Protocol

    SOH Section Overhead

    SOHA Section Overhead AccessSPB Synchronous Port Block

    SPI Synchronous Port Interface

    SPI EL Synchronous Port Interface - Electrical

    SPI OPT Synchronous Port Interface - Optical

    STM Synchronous Transport Module

    T T3 Clock Input 2048 k - synchronous

    TMN Telecommunication Management Network

    TSE Test Sequence Error

    TTF Terminal Transport Function

    TX Transmitter

    U USER User Port

    W WAY Wayside TrafficX XIF Cross-Polarization Improvement Factor

    XPD Cross-Polarization Discrimination

    XPE Cross-Polarization Equalizer

    XPI Cross-Polarization Interference

    XPIC Cross-Polarization Interference Canceller

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    Abbreviations Commissioning Instructions

    RF/160 CIX

    This page has been left blank for editorial reasons.

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    Commissioning Instructions Safety Instructions

    RF/160 CI 1-1

    1 Safety Instructions

    1.1 Application

    These microwave radio systems are designed to meet environment class 3.2 as defined in ETS 300 019.This class specifies system applications in partly temperature-controlled rooms (-5 C to +45 C, max.95% relative humidity). The systems may be used only under the conditions and for the purpose for whichthey have been developed. For more detailed information, please refer to the Technical characteristicsindicated in the Operator Manual.Installation and Service works may be executed only by technically trained and experienced staff knowingthe hazards that can occur and the measures to be taken for minimizing any danger for themselves andthird parties. Please note all warnings and instructions contained in this Manual. Only service staff should be granted access to the active system. Do not use any installation materials (screws, nuts etc.) different from those supplied with the

    equipment or recommended by the manufacturer. Use appropriate safety devices while you are working on top of or near the mast. The system may be installed and operated only in locations with restricted access.

    1.2 Protection class

    The DRS 155/...-64/128 MLQAM E system meets protection class IEC IP 20.

    1.3 Operating voltage

    Key word 1-1 Operating voltage

    The Tx, Rx, MU PS and OHAU PS modules of the microwave radio system can be operated in the

    voltage range from 19 V to 75 V DC. The voltage input is floating, i.e. either the positive pole (standard)or the negative pole can be grounded. The standard cables used for setting up the connection to thepower box (distributor) are dimensioned for the voltage ranges of48 V and 60 V. Thicker cable cross-sections are required for 24 V.

    Before switching on the power supply, please check that the operating voltage and supply voltageare identical and that the polarity is correct ( Fig. 1-1).

    Fig. 1-1: DC port Sub-D , 3-pin, male

    Ensure that the power supply has been switched off before you plug in or pull out any moduleconnecting cables. This applies to both control and operating voltage cables of the Modem Unit,OHAU as well as Tx and Rx modules.If the RPSI module is pulled out or plugged in live, transmission faults may occur in the protection channel.Ensure that the following conditions are fullfilled:

    1. No operating channel must be protection-switched.2. The protection switching function must have been enabled or3. the links between the corresponding RPSI and RPS-C modules must have been cut.

    The following modules may be inserted in or extracted from the subrack only with the power supplyswitched off:

    Modulator = Mod/MD (in Modem Unit)Demodulator = Demod/DM (in Modem Unit)SOH Access (in OHAU)Power Supply = PS (in OHAU & Modem Unit)

    BAT 19...75 V DC

    - +

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    Safety Instructions Commissioning Instructions

    RF/160 CI1-2

    For safety reasons, we always recommend to switch off the corresponding power supply unit at thefuse panel before you extract or insert a module !!The automatic circuit breakers must be located in the feeder line of the ungrounded pole.With the standard fuse sockets of Power Box II, the system may be operated only usingbatteries with the positive pole grounded.

    1.4 Rack installation

    Key word 1-2 Rack installation

    System racks (ETSI or 19) must be protected from tipping over by screwing the clips (Fig. 1-2) to the wallor ceiling using appropriate securing material. For more detailed information, please refer to theInstallation Manual.

    Fig. 1-2: Rack installation

    1.5 Grounding the rackKey word 1-3 Grounding the rack

    The racks must be grounded via the protective grounding point located in the top section of the rear rackupright (Fig. 1-3) using a protective conductor (16 mm). The individual modules are grounded via themetal rails of the subracks and rack. For further instructions, please refer to the Installation Manual.

    Fig. 1-3: Protective grounding point

    M8

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    Commissioning Instructions Safety Instructions

    RF/160 CI 1-3

    1.6 ESD protectionKey word 1-4 ESD protection

    The system rack is equipped with two grounding points (Fig. 1-4) with a 10 mm snap fastener forconnecting a grounding bracelet to avoid electrostatic discharging (ESD).

    Fig. 1-4: Bracelet contacts

    BOSCH RPSC

    EarthBondingPoint

    EarthBondingPoint

    E arthB ondingP oint

    10 mm

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    Safety Instructions Commissioning Instructions

    RF/160 CI1-4

    1.7 Laser safetyKey word 1-5 Laser

    The Modem Unit can be optionally equipped with two optical modules (SPI) (Fig. 1-6).

    The laser used meets LASER CLASS 1 (Fig. 1-5) as defined in EN 60825-1.

    Fig. 1-5: Laser class

    The laser complies with ITU-T G.957 and features the following characteristics:

    S-1.1

    Wavelength 1310 nmOutput power -8...-15 dBmPulse duration 6.43 nsBeam divergence ~ 23

    The module is automatically deactivated by an ALS (Automatic LaserShutdown) circuit as soon as theoptical input signal fails (e.g. in case of a cable break). In case of a loss of signal (LOS) at the SPI input,

    the laser is alternately activated for 2 seconds and deactivated for 70 seconds. Besides this automatictesting routine, it is also possible to switch on the laser manually for 2 seconds or 90 seconds. Afterexpiry of the corresponding period, the system returns to the previous testing cycle.

    Maintenance and repair works may be executed only by qualified service personnel.

    The laser source emits invisible laser radiation. Laser beams can lead to irreparable eye injuries.Never look into the laser source or onto the connector surface of fibre-optic cables connected, noteven with optical instruments.

    Caution!Use of controls or adjustments or performance of procedures other than those specified hereinmay result in hazardous radiation exposure.

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    Commissioning Instructions Safety Instructions

    RF/160 CI 1-5

    Fig. 1-6: Optical SPI interface module

    STM-1

    SPI

    BOSCH RPSC

    EarthBondingPoint

    EarthBondingPoint

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    Safety Instructions Commissioning Instructions

    RF/160 CI1-6

    1.8 RF interfacesKey word 1-6 RF interfaces

    When opening the RF interfaces (waveguides or semi-rigid cables) while the transmitters are active,health-hazardous microwave radiation is emitted.In addition, this can lead to RF interferences in neighbouring units.Do not look into open waveguide connections and do not stand in front of transmit antennas.

    To avoid exposure to microwave radiation, you should always switch off the transmitter beforeyou start to dismount the equipment.

    Fig. 1-7: RF interfaces

    The SMA connectors of the coaxial cables between the Tx modules, Rx modules and channelbranching networks may be tightened only with a torque of approx. 60 Ncm. A higher torque wouldslacken the SMA connectors at the RF filters when opening the joint. This would lead to a changeof the filter characteristic.

    BOSCH RPSC

    EarthBondingPoint

    EarthBondingPoint

    Warning : Do not open waveguide joints withoutswitching off the transmitter. Stray RF poweris harmful to the body (particulary to the eyes)and can also cause RF interference.

    Warnung : Nicht die Hohlleiterverbindungen ffnen bevor die Senderausgeschaltet sind. Mikrowellenstrahlung kanngesundheitsschdlich sein, besonders fr die Augen.Ebenso knnen Gertestrungen verursacht werden.

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    Commissioning Instructions Checking the System Setup

    RF/160 CI 2-1

    2 Checking the System Setup

    The figures contained and described in this chapter can be used to check the correct system setup andinstallation in compliance with the commissioning records.

    2.1 Rack configurationKey word 2-1 Rack configuration

    All system components are mounted in ETSI cabinets (H x W x D: 2200 x 600 x 300 mm). Alternatively,installation in 19" cabinets is also possible.A fully equipped ETSI cabinet can provide up to 4 RF channels including service channels, power supplyand protection switching. In case of expansions, several cabinets can be installed side by side or back toback (up to 4 system racks or cabinets for a 14 + 2 configuration).An expansion of the microwave radio system (max. 14 operating channels and 2 protection channels) isnormally possible without traffic interruption.

    The card slots for the individual modules are numbered in system racks 0, 1 . . . 4.

    The modules to be mounted in these card slots are preconfigured in the factory according to thecustomer-specific requirements.On site, the modules must be installed in the corresponding card slots in accordance with theconfiguration lists included in the delivery scope to ensure that all features adjusted will be madeavailable.

    Rack 0 Rack 1

    Fig. 2-1: Card slots in the system racks

    Please refer to Chapter 2 "Rack Configuration" of the Operator Manual for detailed configuration lists. Thevarious setup and configuration variants are also described in the Operator Manual.

    101 102 103 104

    111 112 113 114

    100

    200

    220 215214213212 216222

    207 208

    305

    20920

    1

    210 211

    205204203202 206

    300

    301 302 303 304

    311 312 313 314

    4

    01

    4

    0

    2

    40

    5

    40

    4

    40

    3

    40

    6

    40

    9

    40

    8

    40

    7

    41

    0

    41

    1

    4

    12

    4

    1

    3

    414

    5

    0

    1

    5

    0

    2

    5

    0

    5

    5

    0

    4

    5

    0

    3

    5

    0

    6

    5

    0

    9

    5

    0

    8

    5

    0

    7

    5

    1

    0

    5

    1

    1

    5

    1

    2

    5

    1

    3

    514500

    400

    001 - 004

    005 - 008

    000

    0

    1

    1

    010

    0

    1

    2

    0

    1

    3

    0

    1

    4

    0

    1

    5

    0

    1

    6

    0

    1

    7

    0

    1

    8

    0

    2

    10

    2

    0

    0

    1

    9

    2

    2

    1

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    Checking the System Setup Commissioning Instructions

    RF/160 CI2-2

    Example of a rack equipped for a 14+2 configuration with XPIC. Illustration of modules (configurationplan) and channel assignment (cable plan):

    a) Equipment with modules (configuration plan):

    Rack 0 Rack 1 Rack 2 Rack 3 Rack 4

    Fig. 2-2: 14+2 configuration - Equipment with modules

    Equipping direction:from left to right! Rack height: 2200 mm (= standard height) or 1800 mm.

    b) Channel assignment (cable plan):

    Fig. 2-3: Channel assignment plan in a 14+2 configuration

    The channel assignment of the individual modules in the Modem Units is carried out by means of a codingconnector also referred to as address connector. The allocation of Tx and Rx units is ensured by cabling!

    O H A U

    R

    X1H

    R

    X2H

    R

    X3H

    R

    X4H

    TX1

    H

    TX2

    H

    TX3

    H

    TX4

    H

    Modem Unittop(MU o)

    Modem Unitbottom(MU u)

    RF Filter

    RPS-C MU o

    RPS-C MU u

    R

    X5H

    R

    X6H

    R

    X7H

    R

    X8H

    TX5

    H

    TX6

    H

    TX7

    H

    TX8

    H

    Modem Unittop(MU o)

    Modem Unitbottom(MU u)

    RF Filter

    R

    X1V

    R

    X2V

    R

    X3V

    R

    X4V

    TX1

    V

    TX2

    V

    TX3

    V

    TX4

    V

    Modem Unittop(MU o)

    Modem Unitbottom(MU u)

    RF Filter

    RPS-C MU o

    RPS-C MU u

    R

    X5V

    R

    X6V

    R

    X7V

    R

    X8V

    TX5

    V

    TX6

    V

    TX7

    V

    TX8

    V

    Modem Unittop(MU o)

    Modem Unitbottom(MU u)

    RF Filter

    O H A U

    OP1H

    OP2H

    OP3H

    OP5H

    OP1

    H

    OP2

    H

    OP3

    H

    OP5

    H

    MU o

    OP 1 PR 1

    MU u

    OP 3 OP 4

    RF Filter

    RPS-C MU o

    RPS-C MU u

    OP7H

    OP9H

    OP11H

    OP13H

    OP7

    H

    OP9

    H

    OP11

    H

    OP13

    H

    MU o

    OP 7 OP 8

    MU u

    OP 11 OP 12

    RF Filter

    PR1V

    PR2V

    OP4V

    OP6V

    PR1

    V

    PR2

    V

    OP4

    V

    OP6

    V

    MU o

    OP 2 PR 2

    MU u

    OP 5 OP 6

    RF Filter

    RPS-C MU o

    RPS-C MU u

    OP8V

    OP10V

    OP12V

    OP14V

    OP8

    V

    OP10

    V

    OP12

    V

    OP14

    V

    MU o

    OP 9 OP 10

    MU u

    OP 13 OP 14

    RF Filter

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    Commissioning Instructions Checking the System Setup

    RF/160 CI 2-3

    By means of coding pins (ground connection closed or open), the X77 address connector (MST-ADR)located on the connecting panel of the Modem Unit determines the channel function (OP = Operatingchannel or PR = Protection channel), channel no. (OP1, OP2, . . . / PR1 or PR2) and channel direction(East/West) of the modules available in the Modem Unit.

    Key word 2-2 Coding pins of the address connector

    Pin assignment of address connector (15-pin, Sub-D, female), uncoded:

    Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Address bit A0 A2 A4 B0 B2 B4 free free A1 A3 A5 B1 B3 B5 Ground

    Straps :

    Address bits A0 to A5 Components ofleft Modem UnitAddress bits B0 to B5 Components ofright Modem UnitAddress bits A5 and B5 Determines the direction of the microwave radio channel: East or West

    1 . . . . . . . . 8

    9 . . . . . . 15Fig. 2-4: Address connector (Sub-D, 15-pin, female)

    Coding of address connector:

    Channel Hex A d d r e s s b i t s

    designation value A0 / B0 A1 / B1 A2 / B2 A3 / B3 A4 / B4

    OP 1 0x01 1 0 0 0 0OP 2 0x02 0 1 0 0 0

    OP 3 0x03 1 1 0 0 0

    OP 4 0x04 0 0 1 0 0

    OP 5 0x05 1 0 1 0 0

    OP 6 0x06 0 1 1 0 0

    OP 7 0x07 1 1 1 0 0OP 8 0x08 0 0 0 1 0

    OP 9 0x09 1 0 0 1 0

    OP 10 0x0a 0 1 0 1 0

    OP 11 0x0b 1 1 0 1 0

    OP 12 0x0c 0 0 1 1 0

    OP 13 0x0d 1 0 1 1 0

    OP 14 0x0e 0 1 1 1 0

    OP 15 0x0f 1 1 1 1 0

    OP 16 0x10 0 0 0 0 1

    PR 1 0x11 1 0 0 0 1

    PR 2 0x12 0 1 0 0 1

    Logic 0 Ground connection (to pin 15) closedLogic 1 Ground connection (to pin 15) openAddress bit A5 / B5 = logic 0 ground connection (to pin 15) closed = West directionAddress bit A5 / B5 = logic 1 ground connection (to pin 15) open = East direction

    Example: Coded address connector for a 1+1 configuration (equipment protection/hot standby):

    Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Address bit A0 A2 A4 B0 B2 B4 free free A1 A3 A5 B1 B3 B5 Ground

    Straps :

    Results in the following channel allocation of the modules in the Modem Unit:Address bits A0 and A4 isolated from ground protection channel (PR 1) left side of Modem UnitAddress bit B0 isolated from ground operating channel 1 (OP 1) right side of Modem UnitAddress bits A5 and B5 not isolated from ground channel direction: West (OP 1 and PR 1).

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    Checking the System Setup Commissioning Instructions

    RF/160 CI2-4

    Key word 2-3 RPS-C addressing

    Addressing of RPS-C protection switching units:Using a rotary switch on the rear side of the RPS-C module (integrated in connecting panel shield of theModem Unit), the RPS-C can be addressed as follows:

    To set the RPS-C address, the RPS-C module must be removed from the rack in order to be able toread the current setting of the rotary switch and change it, if required.

    Fig. 2-5: RPS-C protection switching unit (front and rear side)

    Settings of the RPS-C rotary switch:

    Channel RPS-C Address A d d r e s s b i tdesignation designation

    Direction(Hex value) AD 0 AD 1 AD 2

    PR 1 RPS-C 1 West 00 0 0 0PR 2 RPS-C 1 West 01 1 0 0PR 1 RPS-C 2 West 02 0 1 0

    PR 2 RPS-C 2 West 03 1 1 0PR 1 RPS-C 1 East 04 0 0 1PR 2 RPS-C 1 East 05 1 0 1PR 1 RPS-C 2 East 06 0 1 1PR 2 RPS-C 2 East 07 1 1 1

    Overview of RPS-C modules required for the possible protection switching variants:

    S stem ex ansion with one rotection channel Number of RPS-CVariant (PR 1) and with two protection channels (PR 1 and PR 2) 7+1 required per station

    1 1+1 e ui ment rotection 1+1 hot standb HSB none (=>RPS-H)2 1+1 line protection w/o occasional traffic of protection ch. PR1 none (=>RPS-H)3 1+1 line protection with occas. traffic of protection ch. PR1 none or14 2+1 to 7+1 with or w/o occasional traffic of rotection ch. 1

    5 8+1 to 14+1 with or w/o occasional traffic of protection ch. 26 2+2 to 7+2 with or w/o occasional traffic of protection ch. 27 8+2 to 14+2 with or w/o occasional traffic of protection ch. 4

    In the scope of system planning, configuration lists are worked out in which the assignment of modules tothe individual card slots is defined. In the factory, these lists are completed with the part nos. of therespective modules. These lists are supplied with the rack and must be revised and returned to theproject engineering department in case of modifications.

    The internal cabling must be carried out on site in accordance with the attached cabling plans. Eachconnector is marked with the rack no., card slot no., equipment unit and port (e.g. 001/ 414/ MU/ X85).

    + Important: In the complete system configuration, all racks and equipment units must be clearlyidentified by appropriate markings! In order to ensure a secure adoption of the new

    addresses, a Reset must be made for all modules connected as soon as anyaddresses have been modified. This reset can be executed using the MSP or by

    switching off and restarting the power supply.

    TRANSIT

    END

    TX SIDE RX SIDE

    LON E

    X1 X2

    LON W

    X6CAN E

    X5CAN W

    X4CAN E

    X3CAN W

    X27

    OP7/14

    X26

    OP6/13

    X25

    OP5/12

    X24

    OP4/11

    X23

    OP3/10

    X22

    OP2/9

    X21

    OP1

    X28

    OP8

    X29

    X20

    PR1/2

    X18

    OP8

    X17

    OP7/14

    X16

    OP6/13

    X15

    OP5/12

    X14

    OP4/11

    X10

    PR1/2

    X19X11

    OP1

    X12

    OP2/9

    X13

    OP3/10

    Front side of RPS-C:

    Rear side of RPS-C:

    Alarm LED

    Rotary switch showing the address adjusted

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    Commissioning Instructions Checking the System Setup

    RF/160 CI 2-5

    2.2 Antenna installation and alignmentKey word 2-4 Antenna installation

    Optical antenna alignment with electrical cross-check.

    The antennas have been optimally aligned if the electrical maximum is achieved during the (horizontaland vertical) fine alignment, the polarization discrimination is optimized and the radio hop valuescalculated are measured.

    Free-space angles of antennas:Always ensure a free-space angle of 15 on all sides including top and bottom !

    Fig. 2-6: Antenna installation and alignment

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    Checking the System Setup Commissioning Instructions

    RF/160 CI2-6

    2.3 Antenna supportKey word 2-5 Antenna support

    Tighten nuts alternately and evenly !

    Fig. 2-7: Antenna support PS2m, PS3m

    Fig. 2-8: Antenna support PS1.8m

    Horizontalalignment

    Verticalalignment

    Tighten all screw connectionsafter alignment

    1) Secure M16 brass connectionswith counter-nuts

    PS1.8m

    Verticalalignment

    Basic positionHorizontal spindle

    Horizontalalignment

    Support

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    Commissioning Instructions Checking the System Setup

    RF/160 CI 2-7

    Torque of U-bolt nuts(A2-70/ A4-70):

    M16 max. 115 NmM20 max. 260 Nm

    All other screw connectionsmust be tightened depending

    on the material.

    Attention:The threads of all screw

    connections must be

    greased !

    Torques of U-bolt nuts:

    M12 max. 64 NmM6 max. 90 Nm

    Fig. 2-9: Antenna support PE2x2

    Fig. 2-10: Antenna support PS1.2

    *) 0 verticalcorrespondsto L=180mmmeasured with1m water level

    Clamping positions for mounting brackets

    U-boltM16 (SW24)

    Stand-alonesupport

    U-boltM20 (SW30)

    U-boltM16 (SW24)

    Brackets

    Verticalalignment SW38

    Horizontalalignment

    Ground

    U-boltM12 or M16

    Verticalalignment

    Antennasupport

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    Checking the System Setup Commissioning Instructions

    RF/160 CI2-8

    2.4 Waveguide connection

    2.4.1 Antenna sideKey word 2-6 Waveguide connection

    Fig. 2-11: Connecting the waveguide to the antenna

    Minimum bending radii of various waveguides:

    Waveguide typeInstallation value

    rmin.[mm]Single bendrmin.[mm]

    Multiple bendrmin.[mm]

    Flex. waveguide R70

    E-planeH-plane 200410 100205 200400ALFORME-planeH-plane

    200400

    200400

    FLEXWELL WG E70E-planeH-plane

    300600

    300600

    E-plane

    H-plane

    Flange connec-ting kit

    Shim, ifrequired

    Flexiblewaveguide

    Flange connec-ting kit

    Fitting for antenna

    feeder lineWaveguidefixture

    Support dependingon design

    Waveguidemounting bracket

    Antenna feeder

    line, e.g. ALFORMwaveguide

    Support e.g.60.8552.361.00-A001AN00196017for tube

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    Commissioning Instructions Checking the System Setup

    RF/160 CI 2-9

    2.4.2 Equipment side

    Fig. 2-12: Connecting the waveguide to the equipment

    The RF feeder line can be bent to be adjusted to local conditions. Multiple bending is also possible.

    Minimum bending radii of RF feeder lines:

    RF feeder line Installation value Single bend

    Rmin[mm] 20 10

    Waveguidee.g. ALFORM

    Semi-rigid cable (type: 250/AL/TP)secured with hexagonal nut (max. 7Nm)after alignment of flange.Cable entry protected with heat-shrinkable tube.

    Connectingflange

    RF connecting cable(semi-rigid)

    RF channel-branching network

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    Checking the System Setup Commissioning Instructions

    RF/160 CI2-10

    2.5 Securing the waveguideKey word 2-7 Securing the waveguide

    Fig. 2-13: Waveguide installation

    Maximum spacings between waveguide mounting brackets:

    Waveguide typeHorizontal waveguide run

    max.VVertical waveguide run

    max.V

    Alform A75 1.1m 1.5m

    Flexwell E70, int.1.1m 1.5m

    Flexwell E70, ext.1.1m 1.5m

    Angularprofile

    C-rail

    Antennafeeder line

    Stave

    e.g. C-rail

    Waveguide mounting bracketwith clamp composed of :- clip- waveguide washer- mounting clamp

    Waveguide mountingbracket for C-railcomposed of :- clip- waveguide washer- slide nut for C-rail

    Mounting bracket

    Tube

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    Commissioning Instructions Checking the System Setup

    RF/160 CI 2-11

    2.6 Wall feed-throughKey word 2-8 Wall feed-through

    Example: ROXTEC system

    Fig. 2-14: Wall feed-through for waveguides and cables

    For waveguide- Sealing module ROX90

    - Filling piece (clip washer)

    e.g. ALFORM waveguide A75

    Joint sealed with elasticsealing compound

    A75E70

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    Checking the System Setup Commissioning Instructions

    RF/160 CI2-12

    2.7 Grounding the antenna feeder lineKey word 2-9 Grounding the antenna feeder line

    Grounding points:

    at antenna end of waveguide at vertical/horizontal transition in front of entry into building in front of entry into operating room

    Grounding cable Sealing tape

    Tighten screws alternately and evenlyuntil the strap is under tension and theintermediate piece is tightly pressedonto the waveguide.

    The sheath cuts and groundingcables must be sealed with asealing tape.

    Fig. 2-15: Grounding the antenna feeder line (waveguide)

    Grounding points

    Lightning protection

    grounding pointsRadio unit

    Building

    Operating room

    Antenna

    feeder line(waveguide)

    Sealing compound

    ALFORM - Grounding FLEXWELL - Grounding

    Intermediatepiece

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    Commissioning Instructions Checking the System Setup

    RF/160 CI 2-13

    2.8 Waveguide labelling

    Key word 2-10 Waveguide labelling

    Fig. 2-16: Marking the antenna feeder line (waveguide)

    Attach the adhesive labels to the antenna feeder line at a distance of approx. 10 to 15 cm behind theconnector fitting.

    In case of waveguides, the label should be attached to the broad side.

    Far end

    Polarizatione.g. H or V

    Waveguide typee.g. A75 or E70

    to

    Ant. no.

    Type Length

    Direction

    Antenna feeder line no.

    m

    Pol.

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    Checking the System Setup Commissioning Instructions

    RF/160 CI2-14

    This page has been left blank for editorial reasons.

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    Commissioning Instructions Waveguide and Antenna Measurements

    RF/160 CI 3-1

    3 Waveguide and Antenna Measurements

    3.1 Reflection measurement at the waveguide

    3.1.1 Design and calibration of the test setupKey word 3-1 Reflection measurement

    Reflection measurements are normally performed using the following measuring units and accessories:Spectrum analyzer e.g type 8593E (up to 22 GHz) from HPTracking generator type 85645A (up to 26.5 GHz) from HPPrinter/plotter e.g. type 7440A from HP andTest coupler with accessories depending on RF frequency from Spinner (sweep box)

    Optionally, this measurement can also be performed using a "Site Master from Anritsu (see chapter 5"Measuring Units and Accessories").The spectrum analyzer and tracking generator are connected to form the test setup depicted below:

    Fig. 3-1: Test setup for reflection measurement (calibration)

    The connections between the spectrum analyzer and tracking generator are set up using coaxial cables:

    Spectrum analyzer to Tracking generator

    Front side: 1ST LO OUTPUT Front side: LO INPUT

    Rear side: LO SWP OUTPUT Rear side: SWEEP + TUNE IN

    Rear side: 10 MHz REF IN/OUT Rear side: 10 MHz INRear side: BLANKING OUTPUT Rear side: BLANK IN

    In this test setup, the tracking generator is controlled by the spectrum analyzer, i.e. all settings necessaryfor cabibration and measurement must be entered only at the spectrum analyzer. At the trackinggenerator, only the type of spectrum analyzer used (e.g. HP 8562A) must be adjusted or selected.(=> Buttons: "RESET" / "CONFIG" / "ENTER" / "MENU Down" => Display: "CONFIG #1" & "HOSTSELECT"; press the "ENTER" button and scroll Up "^" or Down "v" until the correct type appears in thedisplay. Then press "ENTER" again to save this setting.)

    Settings at the spectrum analyzer:Frequency range : e.g. for DRS 155/7500: Start: 7.1 GHz / Stop: 7.75 GHzAmplitude : 5 dB/Div

    Reference level : 0 dBSweep mode : Single sweep

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    Waveguide and Antenna Measurements Commissioning Instructions

    RF/160 CI3-2

    Plotter

    Spectrum analyzer

    HP-IBIEEE

    ConnectionLO output (Spectr.) toLO input (Track.)

    Reference branch(Absorber)

    Flexible RFcables

    Tracking generator

    Test coupler

    Waveguide

    Antenna

    Calibration of the test setup:Screw a short-circuit plate to the output of the test coupler and save the measuring curve tochannel B of the spectrum analyzer(TRACE B/ CLEAR WRITE B).

    Then remove the short-circuit plate and connect the coupler output to the waveguide.=> Setting at spectrum analyzer: in "MATH" menu: "A - B --> A"

    TRACE A/ CLEAR WRITE A

    3.1.2 Description of reflection measurement

    The test coupler of the calibrated test setup is connected to the equipment end of the waveguide to bemeasured (the antenna being used as "Termination" at the other end). The measurement is nowexecuted by starting a "single sweep" at the spectrum analyzer over the calibrated frequency range (e.g.7.1 to 7.75 GHz). If the reflection measured over the whole frequency range is 25 dB, the required return loss of theantenna system including the waveguide has been achieved and the graphical test result can be printedout with the adjusted measuring parameters on the corresponding commissioning record sheet using a

    plotter.If, however, the required reflection is not reached, the measurement must be repeated only for thewaveguide (without antenna system). For this purpose, the waveguide is terminated by an absorber andnot by the antenna (absorber reflection: 40 dB).The reflection measured over the whole frequency range should be 28 dB for the waveguide.

    With diversity operation, the same measurement must also be performed for the second antenna system.

    Test setup:

    Fig. 3-2: Reflection measurement at the waveguide

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    Commissioning Instructions Waveguide and Antenna Measurements

    RF/160 CI 3-3

    3.2 Polarization discrimination (XPD) measurementKey word 3-2 Polarization discrimination

    On all radio hops operated in the XPIC mode, operation in both polarization planes (vertical andhorizontal) is provided via one antenna.This antenna is connected via an orthomode transducer (OMT).

    +Note: The described measurement is normally performed after antenna alignment and duringcommissioning (see Note in section 4.7.4) if an unmodulated RF signal is made availableby the radio transmitter!

    The following devices are necessary for measuring the polarization discrimination: a spectrum analyzerand an adapter composed of 1 (2) waveguide transition(s) and one flexible RF coaxial cable forconnecting the cross-polar path of the OMT.The spectrum analyzer is connected - if possible - via the adapter to the occupied branch of the OMT(waveguide disconnected) [1.] or directly to the Rx branching network (adapter with 2 waveguidetransitions between OMT and waveguide). In the far end, the transmitter is connected to the antenna viathe waveguide and OMT (of the polarization plane connected).The Tx frequency is adjusted at the spectrum analyzer and the level measured (in dBm /set marker) isrecorded.

    Then the spectrum analyzer is connected via an adapter to the cross-polar output of the polarizationplane [2.]. The Tx signal amplitude of the MARCONI / RFS UHP antenna measured by means of thespectrum analyzer must be at least 30 dB lower than before. The polarization discrimination is measuredin both stations.

    + Attention: Ensure that the modulation and ATPC have been switched offbefore you executethis measurement!See sections 4.7.1 "Deactivating the ATPC function and 4.7.2 "Deactivating modulation!

    Test setup:

    Fig. 3-3: Polarization discrimination measurement

    +Note: This measurement can also be performed at the equipment end of the waveguideif the antenna platform does not permit a direct measurement at the OMT or if such ameasurement would be very complex.

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    This page has been left blank for editional reasons.

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    4 Commissioning

    4.1 Steps to be executed before system start-up

    Before switching on the operating voltage, please verify the following items:1. The rack must have been secured to the wall or ceiling and properly grounded as described in the

    installation instructions.

    2. All modules must have been mounted in the appropriate card slots and secured in position so thattheir interconnection is ensured via the backplane.

    3. All cables must have been connected to the ports specified on the connector bushings and securedwith screws so that they cannot be pulled out inadvertently. The same applies to all coaxial cables (IFcables).

    4. The coded "address connector" (see section 2.1 Rack configuration) has been connected to X77(MST-ADR) of the connecting panel (included in the delivery scope).

    5. The supply voltage has been routed via the rack circuit breaker to the corresponding power supply

    units accommodated in the rack and connected to these.6. The feeder line (waveguide) has been routed up to the antenna, secured in position and connected to

    the RF interface (RF filter) of the system as described in the Installation Manual.

    7. The RF interfaces of the transmitters and receivers have been connected via semi-rigid cables to theassociated RFfilter interfaces of the Tx and Rx branching network chain.

    8. The coaxial cables or fiber-optic cables for the baseband input (STM-1) have been connected to theinput socket () of the CMI (electr.) or optical interface module (SPI STM-1).

    9. The coaxial cable or fiber-optic cable for the baseband output (STM-1) has been connected to theoutput socket () of the CMI (electr.) or optical interface module (SPI STM-1).

    10. Only in diversity operation: The coaxial sockets X2 and X24 (of the main receiver) as well as X22 andX23 (of the diversity receiver) located on the front side have been interconnected by means of coaxial

    cables (short cable bridges).11. A valid address has been adjusted on the SISA0-N module mounted in the OHAU subrack (0 ... 254

    => default setting: 1). The definite SISA address is normally defined by the customer and adjusted bymeans of DIP switch S1 before commissioning. See section 4.2 below for how to change the defaultsetting.

    12. The Service PC has been connected to the front socket of the SISA0-N module mounted in theOHAU subrack.

    Before starting up the operating voltage, verify or make the necessary hardware settings (see sections4.2, 4.3 and 4.4).

    4.2 Adjusting the SISA addressKey word 4-1 Adjusting the SISA address

    The SISA address can be adjusted only via the hardware (DIP switch S1). Adjusting this address bymeans of the Service PC (MSP) is not possible. If the SISA address defined by the customer or networkoperator is available, this address should be adjusted before commissioning.If the definite SISA address has not yet been defined, commissioning is performed with the defaultaddress which can then be changed at a later date.

    + Note: For safety reasons, the power supply should always be switched off before you insert orextract any modules (see section 1.2 Operating voltage)!

    For adjusting the SISA address, the SISA0-N module must be extracted from the OHAU subrack.1. For safety reasons, switch off the power supply of the OHAU subrack

    (de-energize at fuse panel; not absolutely necessary for the SISA0-N module).2. Remove the screws on the front panel of the SISA0-N module.3. Extract the SISA0-N module from the subrack and adjust the SISA address by

    means of DIP switch S1.

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    Permissible range of addresses: 0 to 254

    S I S A D I P s w i t c h S 1address 1 2 3 4 5 6 7 8

    0 OF OFF OFF OFF OFF OFF OFF OFF1 ON OFF OFF OFF OFF OFF OFF OFF

    2 OF ON OFF OFF OFF OFF OFF OFF3 ON ON OFF OFF OFF OFF OFF OFF

    4 OF OFF ON OFF OFF OFF OFF OFF

    5 ON OFF ON OFF OFF OFF OFF OFF

    6 OF ON ON OFF OFF OFF OFF OFF

    7 ON ON ON OFF OFF OFF OFF OFF

    8 OF OFF OFF ON OFF OFF OFF OFF: : : : : : : : :

    : : : : : : : : :

    253 ON OFF ON ON ON ON ON ON

    254 OF ON ON ON ON ON ON ON

    Binary value

    Analog value

    20

    121

    222

    423

    824

    1625

    3226

    6427

    128

    + Important: SISA address 255 has been reserved for the software download of the SISA0-N modulesoftware and cannot be used as a normal SISA address!

    Position of DIP switch S1 on the SISA0-N module (not labelled):

    Fig. 4-1: SISA0-N module layout

    ON1

    8

    234567

    32

    1

    1

    8

    ON

    S1

    Service PCport

    Reset button

    Reset LED

    Service LED

    Service LEDNeuron

    X16

    X14

    Backplane

    Connector

    X16

    X14

    UP module

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    4.3 Interface configuration on the QTN2 module

    Key word 4-2 Interface configuration on the QTN2 module

    Changing from a G.703 to a V.11 interfaceon the QTN2 module requires a hardware setting which isperformed by changing the service connectorfrom X200 to X201 or vice versa. To do this, the QTN2module must be extracted from the OHAU subrack.

    + Note: For safety reasons, the power supply should always be switched off before you insert orextract any modules (see section 1.2 Operating voltage)!

    Setting: Service connector on X200 => 2 x 64 kbit/s interfaces to G.703

    Service connector on X201 => 1 x V.11 interface

    Default setting: 2 x 64 kbit/s to G.703 (service connector on X200) !(V.11 interface only required for special applications !)

    4.4 Configuring 2 Mbit/s interfaces on RFCOH and SOH Access modules

    The configuration of the 2 Mbit/s interfaces also involves hardware settings (straps) and cannot beexecuted by means of the Service PC (MSP).The interfaces of the 2 Mbit/s service channel can be switched over between 120 W (balanced) and 75 W(unbalanced).

    4.4.1 Configuring the 2 Mbit/s interface of the RFCOH Access module

    Key word 4-3 Configuring the 2 Mbit/s interface of the RFCOH Access module

    The RFCOH module can be supplied in two versions which provide the following channels:

    Version 1:

    4 x 64 kbit/s service channels to ITU-T G.703, codirectional, 1+1 protected. 1 x 2 Mbit/s auxiliary channel to ITU-T G.703, coaxial or balanced, 1+1 protected or unprotected.

    Version 2:

    8 x 64 kbit/s service channels to ITU-T G.703, codirectional, 1+1 protected. 1 x 2 Mbit/s auxiliary channel to ITU-T G.703, coaxial or balanced, 1+1 protected or unprotected.

    One 2 Mbit/s interface can be used per RFCOH module. The required impedance (120 W or 75 W) isadjusted by means of jumpers on the RFCOH Access module:

    1. For safety reasons, switch off the OHAU subrack power supply (de-energize at the fuse panel;

    not absolutely necessary for RFCOH Access modules).2. Remove the screws on the front side of the RFCOH Access module.3. Extract the RFCOH Access module from the subrack and adjust the required

    impedance by means of the jumpers described below.

    + Note: For safety reasons, the power supply should always be switched off before you insert orextract any modules (see section 1.2 Operating voltage)!

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    Adjusting the 2 Mbit/s interface to 120 W (balanced):Straps on X302: Pins 1 a-b to 8 a-b closed All straps (a-b) inserted !Straps on X301: Pins 1 a-b to 8 a-b open No strap (a-b) inserted !Straps on X303: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b closed Straps (a-b) inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b open Straps (a-b) not inserted !Straps on X300: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b closed Straps (a-b) inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b open Straps (a-b) not inserted !Adjusting the 2 Mbit/s interface to 75 W (unbalanced):

    Straps on X302: Pins 1 a-b to 8 a-b open No straps (a-b) inserted !Straps on X301: Pins 1 a-b to 8 a-b closed All straps (a-b) inserted !Straps on X303: Pins 1 a-b, 3 a-b, 5 a-b & 7 a-b open Straps (a-b) not inserted !

    Pins 2 a-b, 4 a-b, 6 a-b & 8 a-b closed Straps (a-b) inserted !Straps on X300: Pins 1 a-b, 3 a-b, 5 a-b & 7 a-b open Straps (a-b) not inserted !

    Pins 2 a-b, 4 a-b, 6 a-b & 8 a-b closed Straps (a-b) inserted !

    Position of straps on the RFCOH Access module (not marked):

    Fig. 4-2: RFCOH Access module layout

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    4.4.2 Configuring the 2 Mbit/s interface of the SOH Access module

    Key word 4-4 Configuring the 2 Mbit/s interface of the SOH Access module

    On the SOH Access module, a distinction is made between the East and West direction. The requiredimpedance (120 W or 75 W) can be separately adjusted for both directions by means of straps:

    1. For safety reasons, switch off the OHAU subrack power supply (de-energize at fuse panel;not absolutely necessary for RFCOH Access modules).

    2. Remove the screws on the front side of the RFCOH Access module.3. Extract the SOH Access module from the subrack and adjust the required impedance by means

    of the straps described below.

    + Note: For safety reasons, the power supply should always be switched off before you insert orextract any modules (see section 1.2 Operating voltage)!

    Adjusting the 2 Mbit/s interfaces to 120 W (balanced) East direction:Straps on X104: Pins 1 a-b to 8 a-b closed All straps (a-b) inserted !Straps on X102: Pins 1 a-b to 8 a-b open No strap (a-b) inserted !Straps on X101: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b closed Straps (a-b) inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b open Straps (a-b) not inserted !Straps on X100: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b closed Straps (a-b) inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b open Straps (a-b) not inserted !Adjusting the 2 Mbit/s interfaces to 120 W (balanced) West direction:

    Straps on X405: Pins 1 a-b to 8 a-b closed All straps (a-b) inserted !Straps on X404: Pins 1 a-b to 8 a-b open No strap (a-b) inserted !Straps on X403: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b closed Straps (a-b) inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b open Straps (a-b) not inserted !Straps on X401: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b closed Straps (a-b) inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b open Straps (a-b) not inserted !Adjusting the 2 Mbit/s interfaces to 75 W (unbalanced) East direction:

    Straps on X104: Pins 1 a-b to 8 a-b open No strap (a-b) inserted !Straps on X102: Pins 1 a-b to 8 a-b closed All straps (a-b) inserted !Straps on X101: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b open Straps (a-b) not inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b closed Straps (a-b) inserted !Straps on X100: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b open Straps (a-b) not inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b closed Straps (a-b) inserted !

    Adjusting the 2 Mbit/s interfaces to 75 W (unbalanced) West direction:Straps on X405: Pins 1 a-b to 8 a-b open No strap (a-b) inserted !Straps on X404: Pins 1 a-b to 8 a-b closed All straps (a-b) inserted !Straps on X403: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b open Straps (a-b) not inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b closed Straps (a-b) inserted !Straps on X401: Pins 1 a-b , 3 a-b , 5 a-b & 7 a-b open Straps (a-b) not inserted !

    Pins 2 a-b , 4 a-b , 6 a-b & 8 a-b closed Straps (a-b) inserted !

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    Position of straps on the SOH Access module (not marked):

    Fig. 4-3: SOH Access module layout

    4.5 System startup and commissioning process

    After verification of all items listed in section 4.1 above and execution of all hardware settings required,the system can be started up by means of the automatic circuit breaker of the rack.

    After startup, check the LEDs on the front panels of the modules:

    Green LEDs (BAT) display normal operation of the modules => supply voltage switched on (ok),operational status: ON (Operation).

    Red LEDs (IIII) display a fault orfailure of the modules => must not light up!

    Exception: Loss of input signal (LOS) (STM-1 baseband signal) => red LED lit on SPI STM-1 (IIII)and loss of input signal (RF input signal from the antenna) => red LED on the

    receiver and demodulator (IIII) => antennas not yet aligned!

    All systems are completely tested and preconfigured in the factory, so that microwave radio systems arenormally ready for operation after being switched on. Should any faults be detected, these must beeliminated before starting the commissioning process decribed below. For instructions on how toproceed, please refer to the Operator Manual, Chapter: "What is when", "Trouble-shooting".

    As soon as the microwave radio system interacts with the far end without any trouble, you can start thecommissioning process. All commissioning steps to be performed are described in the following sections.

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    4.6 Service PC (LMT/MSP)Key word 4-5 Service PC

    For system configuration, a laptop is required which must be loaded with the SISA basic software(version 2.16 or higher) and the DRS 155 E application software (version 1.21 or higher) for SDHmicrowave radio, XQI and SISA-V.All MSP windows of the DRS 155 E application software depicted in this Commissioning Instructionrefer to Version1.21.

    The SISA0-N module converts the internal system bus (LON bus) to a Q interface (QD2) and provides aF-interface for connecting a Service PC. One SISA0-N module is required for each microwave radioterminal or microwave radio regenerator station.

    The PC is connected to the F-interface (RS 232) of the SISA module (SISA0-N) available in the OHAUsubrack using an appropriate connecting cable (Sub-D 9-pin, female Sub-D 9-pin, male).

    This interface is adjusted to 9600 baud/s, 8 data bits and even parity.For more detailed information on the SISA structure, please refer to the Modular Service PC Manual.

    Then the SISA network and SISA network manager are activated.Further menus can be called up via the DRS 155 E module.

    Key word 4-6 SISA network manager

    Perform the following steps at the Service PC to activate the DRS 155 E application menus required forsystem commissioning:

    1. Start up the network driver by double-clicking the SISA Network icon ( Netdrv.lnk ).

    2. Start up the network manager by double-clicking the Network Managericon ( Netman.lnk ).

    Thefollow window (SISA MSP ) is displayed.

    Click the Continue button.

    Netdrv.lnk

    Netman.lnk

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    The SISA Network Managermask appears:

    In the SISA Network Manager mask, the microwave radio system (DRS 155 E) connectedis displayed at the SISA address adjusted.

    3. Start up the DRS 155 E application by double-clicking the DRS 155 E button in the SISA NetworkManager:

    The following mask appears:

    Ensure that Manufacturer- specific is displayed in the Application box and that theConfiguration option is check-marked in the Initiate requests section!

    4. Then click the Execute button.

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    The logic view of the functional model of a microwave radio system appears:

    Active functional groups are displayed as buttons.Faulty functional groups (modules) are displayed as red buttons.

    If the "SISA0" functional group should be displayed as a red button, there is a system-internaldeviation between the actual and nominal equipment. In this case, call up the actual equipment listvia the

    "Management" / Nominal/Actual Equipment"

    menu and check as to which modules are displayed as missing (red). If these modules arephysically available and correctly connected in the system (check this), you must re-initializethe corresponding table by resetting the SISA0 module via the

    "Management" / "Reset"

    menu item. The SISA0 alarm (red marking of SISA0 functional group) should now disappear.

    In the course of the commissioning process, the various modules of the microwave radio systemaccessible from the Service PC via the HW view must be configured.

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    5. Double-click the HW View in the menu displayed. Then select the Modules option from the sub-menu. The hardware view (module level) of the microwave radio system connected appears:

    This view shows the possible maximum equipment of the microwave radio system with modules:

    16 operating channels with modem RFU OP / OP modem2 protection channels with modem RFU PR / PR modem4 service channel units OHAU4 protection central modules RPS-C1 hot standby protection module RPS-H

    Here all active modules are displayed as buttons which can be clicked to open further menu windows withall menu items required for further commissioning steps. Faulty modules are displayed in redcolor.As described in the following chapters, the Configuration window displays the most important menu

    required for the individual modules.

    + Note: Configuration data not supported by the unit are dimmed or suppressed completely!These data are displayed for information purposes only and cannot be modified by theoperator (e.g. oscillator frequency of transmitter and receiver)!Configuration boxes which are depending on a certain equipment with modules or anactive function or operating mode can be changed only if the correspondingprerequisites are fulfilled!

    The procedure described in the following for modifying settings is applicable to all configuration windows:

    1.) Enabling the modification mode:

    a) Choose Process and Modify (upper menu bar in the configuration window) . . . or . . .

    b) Click the! toolbar button (= Modify).

    2.) Executing the modification:

    a) Click the corresponding box ( = Active/ = Not active) . . . or. . .b) Click the arrow button (>) and open the selection window . . . or. . .

    c) Make a direct entry in the Parameters box via the keyboard.

    3.) Saving modifications:

    a) Choose Process and Adopt (upper menu bar in the configuration window) . . . or. . .

    b) Click the toolbar button (= Adopt/ save).4.) Choose File and Exit (top menu bar in all windows) . . . or. . .

    click the box in the upper right corner to close this window.

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    4.7 Aligning the antennas

    4.7.1 Disabling the ATPC functionKey word 4-7 Disabling the ATPC function

    The transmitter (Tx) configuration window depicted below can be activated by selecting the corresponding

    module in the HW view:

    RFU OP x x = No. (1 to 16) of associated active RF unit.

    Transmitter = Button in the "DRS 155(1) RFU OPx MB window

    Management

    Configuration

    Then the parameters can be modified by executing the following steps:Process and Modify

    . . . or using the! toolbar button (= Entry).

    In the ATPC section, click the Enable configuration box. The check-mark () disappears (= emptyconfiguration box):

    ATPC : Enable ATPC enabled Enable ATPC disabled

    The transmit level must be activated (TX RF output Power on) and set to its Nominal value (= max.Tx level: = 30.5dBm with 64QAM systems and 30.0dBm with 128QAM systems;Exception: 13 GHz: max. Tx level = 28.0dBm) max. level = nominal value. In this window, please check

    the Band position and Sideband settings in the Band Selection section. They must comply with the channeland frequency tables (see section 12 Frequency Setting in the Operating Instructions of the Operator Manual- Register 4)!

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    + Important: Before closing the configuration window and for enabling the modified parameters, all

    modifications must be saved!

    To do this, click

    Process

    Adopt

    . . . or choose thetoolbar button (= Adopt).

    4.7.2 Disabling the modulation

    Key word 4-8 Sending an unmodulated IF carrier

    The modulator configuration window depicted below can be activated by selecting the correspondingmodule in the HW view:

    Modem OP x x = No. (1 to 16) of associated active Modem Unit

    Mod 155/140 = Button in the "DRS 155(1) Modem OPx MB window

    Management

    Configuration

    For activating the modification mode, click

    Process

    Modify

    . . . or choose the!toolbar button (= Modify).

    In the Carrier input box, enter "Test signal" and save this entry to the Modulator module by clicking

    Process

    Adopt

    . . . or thetoolbar button (= Adopt).Definition of the carrier setting:

    Test signal : The modulator supplies the transmitter with an unmodulated IF signal.The latter can be used to measure intermodulation and XPD values.

    modulated : The IF signal is 64 or 128 MLQAM modulated (depending on the modulatortype used).