User's Manual

Confidential&Proprietary89/122 SC‐DAS
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5.4 OEUInstallation
OEUisusedtoexpandtheROUinamultibuildingenvironment.
TheOEUislocatedataRemoteCloset.AsitcanbeequippedwithuptotwoDOUs,youcan
expandatotalofeightROUs.
5.4.1 OEUchassisinstallation
TheOEUchassisis2RUinsizeandcanbeinsertedintoa19”StandardRack.TheOEUisinaRemote
Closet,providingopticalportsfortheROU.
ThefollowingtableshowspowerconsumptionofOEU:
No. Unit Description Remark
Chassis
IncludingEWDM,ERF,EPSU,ECPU,
 19”,2U
1EA
CommonPart
PowerCable‐48VdcInputwithtwolugterminal 1EA
OptionalPart DOU OpticalModulewith4OpticPorts
Up to 2EA to be
inserted

5.4.2 OEUPowerCabling
TheinputpoweroftheOEUis‐48VDC.YouneedtoconnectaDCcablewiththeTerminalBlockseen
attherearoftheOEU.
Terminal Colorofcable Description Remark
‐48V Bluecolor Inputrange:‐42to‐56Vdc
NC NotConnected 
GND Blackcolor 
Beforeconnectingthepowerterminal,Verifythat‐48VDCispresentbyconnectingthepowersupply
toaDVMwith“‐“terminaltopositiveand“+”terminaltoGNDoftheDVM.Ifvoltageiscorrect,
connectthepowerterminalthroughtheterminalseenbelow.
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