Lucent Technologies FiberReach DDM-2000 - Page 971

RTRV-ALM 21of18Page RTRV-ALM
DescriptionReportDescriptionReport
(Contd)DescriptionsRTRV-ALM11-3.Table
MeaningDescription
AISVTinc. indicationalarmpathVTadetectedhassystemThe
Theline.OC-nactivethefromincoming(AIS)signal
thetowardAISDS1transmittingbyrespondssystem
thetowardbackyellowVTandinterfaceT1orDSX-1
received.beingisAISthewhichfromfiber
cross-connectincorrectorIncompletecauses:Likely
unprotectednetwork;end-to-endinprovisioning
end.fartheatCPT1EXTorDS1aoffailureorremoval
AISVTaffectingnon-serviceaapplications,ringIn
orOLIUupstreamanfromresultmaymessagealarm
VTAdirection.ringoneonlyaffectingfailurefiber
non-serviceaforreturnednotismessagealarmyellow
AIS.VTaffecting
LOPVTinc. (LOP)loss-of-pointerVTadetectedhassystemThe
condition.
T1EXTorDS1aoffailureUnprotectedcauses:Likely
orDS1aoffailureunprotectedend;neartheatCP
anoffailureunprotectedend;fartheatCPT1EXT
anoffailureunprotectedend;fartheatCPMXRVO
aoffailureunprotectedend;farorneartheatCPOC1
end.fartheatCP2OC1
(BER)degradesig.VTinc. adetectedhassystemthering,switchedpathVTaIn
ofthresholdprovisionedtheexceedsthatrateerrorVT
10
-5
10to
-8
fromsignalVTgoodaselectssystemThe.
path.ringotherthe
fiberaorfailurepackcircuitOLIUAncauses:Likely
ring.failedtheonpointsomeatfailure
FiberReachDDM-2000 2000June3Issue 11-411