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Lucent Technologies DDM-2000 OC-12 User Manual

Lucent Technologies DDM-2000 OC-12
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RTRV-ALM 17of11Page RTRV-ALM
DescriptionReportDescriptionReport
(Contd)DescriptionsRTRV-ALM11-3.Table
MeaningDescription
(LOF)loss-of-frameadetectedhassystemThe
definedisLOFsignal.OC-12incominganincondition
consecutive(fourcondition(OOF)out-of-frameanas
3leastatforlaststhatpatterns)framingSTS-1errored
milliseconds.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureorend,fartheatCPOLIUtheoffailure
fiber.receive
LOFOC12inc.
(LOS)loss-of-signaladetectedhassystemThe
line.OC-12theoncondition
end,nearatCPOLIUtheofFailurecauses:Likely
receivetheoffailureorend,faratCPOLIUtheoffailure
fiber.
LOSOC12inc.
lineOC-12specifiedthein(BER)ratioerrorbitThe
(10thresholderrorsoftprovisionedtheexceeds
− 9
to
10
− 5
10ofthresholderrorhardthebelowisbut)
− 3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
theoffailureend,fartheatCPOLIUtheoffailure
itwhenusedbeingisattenuatoropticalorfiber,receive
be.shoulditwhenusedbeingnotisorbe,notshould
(BER)degradesig.OC12inc.
signalOC-12receivedthein(BER)ratioerrorbitThe
10exceeds
− 3
.
end,neartheatCPOLIUtheofFailurecauses:Likely
atCPOLIUtheoffailureorfiber,receivetheoffailure
end.farthe
(BER)failedsig.OC12inc.
receiveendfarOC-3thedetectedhassystemThe
signal.OC-3incomingtheinsignal(FERF)failure
incomingandetectedhasendfarThecauses:Likely
bemayThisline.OC-3specifiedtheonfailuresignal
theend,neartheatCPOLIUtheoffailurebycaused
theonfibertransmittheorend,fartheatCPOLIU
line.specified
FERFOC3inc.
11-366 1997December1Issue OC-12DDM-2000

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Lucent Technologies DDM-2000 OC-12 Specifications

General IconGeneral
BrandLucent Technologies
ModelDDM-2000 OC-12
CategoryMultiplexer
LanguageEnglish

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