RTRV-ALM 31of18Page RTRV-ALM
DescriptionReportDescriptionReport
(Contd)DescriptionsRTRV-ALM11-3.Table
MeaningDescription
(BER)failedsig.OC3inc. signalOC-3receivedthein(BER)ratioerrorbitThe
10exceeds
−3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
atCPOLIUtheoffailureorfiber,receivetheoffailure
end.farthe
FERFOC1inc. receiveendfarOC-1thedetectedhassystemThe
signal.OC-1incomingtheinsignal(FERF)failure
incomingandetectedhasendfarThecauses:Likely
bemayThisline.OC-1specifiedtheonfailuresignal
theend,neartheatCPOLIUtheoffailurebycaused
theonfibertransmittheorend,fartheatCPOLIU
line.specified
LOFOC1inc. (LOF)loss-of-frameadetectedhassystemThe
asdefinedisLOFsignal.OC-1incominganincondition
consecutive(fivecondition(OOF)out-of-framean
3leastatforlaststhatpatterns)framingSTS-1errored
milliseconds.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureorend,fartheatCPOLIUtheoffailure
fiber.receive
LOSOC1inc. condition(LOS)loss-of-signaldetectedhassystemThe
line.OC-1theon
end,nearatCPOLIUtheofFailurecauses:Likely
receivetheoffailureorend,faratCPOLIUtheoffailure
fiber.
AISlineOC1inc. indicationalarmlineOC-1detectedhassystemThe
line.OC-1incominganon(AIS)signal
end.fartheatCPOLIUanofFailurecause:Likely
(BER)degradesig.OC1inc. lineOC-1specifiedthein(BER)ratioerrorbitThe
(10thresholderrorsoftprovisionedtheexceeds
−9
to
10
−5
10ofthresholderrorhardthebelowbut)
−3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureorend,fartheatCPOLIUtheoffailure
fiber.receive
(BER)failedsig.OC1inc. signalOC-1receivedthein(BER)ratioerrorbitThe
10exceeds
−3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
atCPOLIUtheoffailureorfiber,receivetheoffailure
end.farthe
11-550 2000February2Issue OC-3DDM-2000
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