User's Manual

FlexWave Prism Remote Unit and HDM RF Module Installation Guide 320000117795 Rev A • FWPP-501-01 Issue 1
Page 20 © March 2016 CommScope, Inc.
Overview of RF Modules for Prism Remote Units
NOTE: Industry Canada 20 dB Pass Band Model Number FWP-C4MT000MOD Cellular 850 MHz =
26.3 MHz and the PCS 1900 = 66.8 MHz.
Duplexer and Low Noise Amplifier
TheRFModuleprovidestheRemoteUnitwithaninternalDuplexerthatisoptimizedtoprovidethe
desiredRFband-passfilteringandin-bandequipmentisolationbetweenFWDandREVpaths.The
Duplexerprovidesthefilteringnecessarytothetransmitandreceivepathstoandfromtheconnected
antenna.
TheDuplexerfortheSingle-andDual-BayRFModulesandtheLegacyDual-Bay40WRFModules
containsuptotwoREVpathLowNoiseAmplifiers(LNAforPRIand/orSECreversepaths).
TheDuplexerforanHDMRFModuledoesnothaveaLowNoiseAmplifier.
Duplexersarenotfieldserviceable.
Digital Processing Module
TheDigitalProcessingModule(DPM)isfoundonlyintheHDMRFModules.TheDPMprovidesthe
primaryprocessingandlogicfunctionsfortheHDMRFModule.Italsoprovidestheprimarypower
interfacefortheHDMRFModule,andconversionofthenative28Vdcvoltagetolowervoltagesas
necessaryforfunctionality.
TheDPMhasaTransmit(Tx)BoardandaReceive(Rx)Board:
• TxBoard—providesbandspecificfilteringfortheintendedTransmitpath.
• RxBoard—providesbandspecificfilteringfortheintendedReceivepath.
Cables
AlwaysprovidedateachRFModuleshelfarefivecables:
• twoHigh-SpeedDataCables,whichinthisdocumentarereferredtoasLVDS(Low-Voltage
DifferentialSignaling)cables
• twoRFCables(TX0/RX0)and(TX1/RX1)
• onePower(PWR)Cable.
TheRFModulecablesthatarepre-installedinthePRUconnecttothecorrespondingconnectorsonthe
RFModule.TheRFModulecablescorrelatetotheantennaconnectorsonthebottomoftheRemoteUnit
chassis.
Table 14. LPA Maximum Composite Tx Power Levels for Legacy Dual-Bay 40W RF Modules
Passband Maximum dBm Watts
Bandwidth (MHz) supported across
en
tire spectrum Classic DART
PCS 1900 +46 40 35
AWS 2100 +46 40 35