User's Manual

Page12 FlexWavePrismRemoteUnitRFModuleInstallationGuide
©2014 TEConnectivityLtd. TECP‐77‐141Issue6 • 300001744178RevF • April2014
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.
UNDERSTANDINGTHERFMODULECABLES
BeforeyouinstalltheRFModulecables,familiarizeyourselfwiththerulesthatpertaintothesecables,asdefined
inthefollowingsections.
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.
PowerCableConnection
Maintainadequatestrainreliefdistancesfromtheconnectionpointstothemodule.
LVDSCableConnections
• LVDScableslabeledPRIMandDIVshouldalwayseitherbeconnectedtoaRFModuleorstrainrelievedto
adjacentcables,asthisprotectsthecableagainstdamagethroughmisplacement.
• AlignandfullyinserttheLVDScableconnectorsintotheirrespectiveconnectorcages.Fullinsertionis
identifiedbyanaudibleclick.
• EnsurethetwoLVDScablesarefullyseatedandlatchedintotheirrespectivereceptaclesontheRFModule
bylightlypullingoutwardontheconnectors.Iffullyseatedandlockedintoposition,thecableconnectorswill
notslidebackout.
• Maintainadequatestrain‐reliefdistancesfromtheconnectionpointstotheRFModule.
RFCableConnections
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PRUchassis.