Lucent Technologies DDM-2000 OC-12 User Manual

RTRV-ALM 17of12Page RTRV-ALM
DescriptionReportDescriptionReport
(Contd)DescriptionsRTRV-ALM11-3.Table
MeaningDescription
(LOF)loss-of-frameadetectedhassystemThe
asdefinedisLOFsignal.OC-3incominganincondition
consecutive(fivecondition(OOF)out-of-framean
3leastatforlaststhatpatterns)framingSTS-1errored
milliseconds.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureorend,fartheatCPOLIUtheoffailure
fiber.receive
LOFOC3inc.
(LOP)loss-of-pointeradetectedhassystemThe
forfoundbenotcouldpointerSTS-1validAcondition.
signal.STS-1identifiedtheinframesconsecutiveeight
onSTS-1theonoccursconditionthisIfcauses:Likely
unprotectedaniscauselikelythelines,OC-3both
thisIfend.fartheatCPDS3orMXRVOaoffailure
causelikelytheline,OC-3oneononlyoccurscondition
end.farorendneartheatCPOLIUtheoffailureis
STS1LOPOC3inc. x
condition(LOS)loss-of-signaldetectedhassystemThe
line.OC-3theon
end,nearatCPOLIUtheofFailurecauses:Likely
receivetheoffailureorend,faratCPOLIUtheoffailure
fiber.
LOSOC3inc.
indicationalarmlineOC-3detectedhassystemThe
line.OC-3incominganon(AIS)signal
end.fartheatCPOLIUanofFailurecause:Likely
AISlineOC3inc.
lineOC-3specifiedthein(BER)ratioerrorbitThe
(10thresholderrorsoftprovisionedtheexceeds
− 9
to
10
− 5
10ofthresholderrorhardthebelowbut)
− 3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureend,fartheatCPOLIUtheoffailure
poweropticaltheofsettingincorrectorfiber,receive
CP.OLIUtheonswitch
(BER)degradesig.OC3inc.
OC-12DDM-2000 1997December1Issue 11-367

Lucent Technologies DDM-2000 OC-12 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-12
Category	Multiplexer
Language	English