User's Manual

FlexWavePrismRemoteUnitRFModuleInstallationGuide Page13
TECP‐77‐141Issue6 • 300001744178RevF • July2014 ©2014TEConnectivity
DuplexerandLowNoiseAmplifier
TheRFModuleprovidesthePRU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.