User's Manual

Confidential&Proprietary100/115 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.
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CheckingCommunicationLEDofROU
Check if TXD and RXD LEDs in the MRU make communication. Receiving FSK signals from the BIU,

LED
Description
ON
 Powerisnotsupplied
 Powerissupplied.
ALM
 NormalOperation
 AbnormalOperation
OPT

R‐OPTisnormaloperation

R‐OPTisabnormalOperation
TXD

Flashingwhendatasendtoupperunit
RXD

Flashingwhendatareceivefromupperunit