User's Manual

Confidential&Proprietary91/122 SC‐DAS
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5.4.3 OEUOpticCabling
TheOEUis connectedwiththe upperODU.Withthe DOUinserted init, theunitisconnectedwith
theROU.
HavingEWDMbuiltintheOEU,itmakestheRF‐opticalconversionofTXsignalsfromODUaswellas
theoptical‐RFconversionofRXsignals.Inaddition,theOEUcanbeequippedwithuptotwoDOUs.
One DOU supports four optical ports and one optical port can be connected with the ROU. With
WDM in the DOU, the unit can concurrently send/receive two different wavelengths (TX:1310nm,
RX:1550nm)throughonestrandoffiber.TheDOUhasSC/APCconnectors.
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Figure5.27–OpticalcablewithSC/ACPTypeConnectors
SC/APC type connectors must be used. To prevent the optical access part from being marred with
dirt,itshouldbecoveredwithacapwhennotinstalled.Connectorsshouldbecleanedwithalcohol
beforetheyareinstalled.
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