User's Manual

Confidential&Proprietary106/122 SC‐DAS
6.2.1 ROUOperation
The ROU is a one‐body enclosure type and is located at a remoteclosetinthebuilding.It
canbeinstalledonawallorintoarack.
Basically,onlyoneantennaportisprovided.Toinstallmultipleantennas,youneeddividers
and/orcouplers.TheROUcanworkwithaDCFeederandanOpticCableFeeder.Topower
the ROU, a power supply of either AC‐DC or DC‐DC can be selected depending on the
application.
Forupperlevel,theROUcanbeconnectedwiththeODUandOEU.IthasanAGCfunction
for5dBoofoptical
cableloss.
ThefollowingshowsoperationalproceduresafterinstallationoftheROU.

CheckingthestatusofROU'sLEDIndicator
When power cable is plugged into an outlet, power is provided for the ROU. Check
informationoneachmodule'sLEDofthesystem.Thetablebelowshowsnormal/abnormal
casesdependingonthestatusofeachmodule'sLED.













CheckingCommunicationLEDofROU
Check if TXD and RXDLEDsin the MRU make communication. ReceivingFSKsignalsfrom the BIU,

LED
Description
 Powerisnotsupplied
ON
 Powerissupplied.
 NormalOperation
ALM
 AbnormalOperation

R‐OPTisnormaloperation
OPT

R‐OPTisabnormalOperation
TXD

Flashingwhendatasendtoupperunit
RXD

Flashingwhendatareceivefromupperunit