RTRV-ALM 31of16Page RTRV-ALM
DescriptionReportDescriptionReport
(Contd)DescriptionsRTRV-ALM11-3.Table
MeaningDescription
LOFOC12inc. (LOF)loss-of-frameadetectedhassystemThe
definedisLOFsignal.OC-12incominganincondition
consecutive(fourcondition(OOF)out-of-frameanas
3leastatforlaststhatpatterns)framingSTS-1errored
milliseconds.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureorend,fartheatCPOLIUtheoffailure
fiber.receive
LOSOC12inc. (LOS)loss-of-signaladetectedhassystemThe
line.OC-12theoncondition
end,nearatCPOLIUtheofFailurecauses:Likely
receivetheoffailureorend,faratCPOLIUtheoffailure
fiber.
(BER)degradesig.OC12inc. lineOC-12specifiedthein(BER)ratioerrorbitThe
(10thresholderrorsoftprovisionedtheexceeds
−9
to
10
−5
10ofthresholderrorhardthebelowisbut)
−3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureend,fartheatCPOLIUtheoffailure
itwhenusedbeingisattenuatoropticalorfiber,receive
be.shoulditwhenusedbeingnotisorbe,notshould
(BER)failedsig.OC12inc. signalOC-12receivedthein(BER)ratioerrorbitThe
10exceeds
−3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
atCPOLIUtheoffailureorfiber,receivetheoffailure
end.farthe
BEROC3inc. signalOC-3receivedthein(BER)ratioerrorbitThe
10exceeds
−3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
atCPOLIUtheoffailureorfiber,receivetheoffailure
end.farthe
FERFOC3inc. receiveendfarOC-3thedetectedhassystemThe
signal.OC-3incomingtheinsignal(FERF)failure
incomingandetectedhasendfarThecauses:Likely
bemayThisline.OC-3specifiedtheonfailuresignal
theend,neartheatCPOLIUtheoffailurebycaused
theonfibertransmittheorend,fartheatCPOLIU
line.specified
11-548 2000February2Issue OC-3DDM-2000