User's Manual

Confidential&Proprietary86/115 SC‐DAS
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Figure5.26–OEUPowerinterfacediagram
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 NotethatOEUdoesnotoperateifthe“+”terminalandthe“–“terminalofthe‐48Vpower
supplyarereversed.
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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.