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ITU O.182:2007

ITU O.182:2007 Equipment To Assess Error Performance On Otn Interfaces Describes measuring equipment for monitoring defects and anomalies and for measuring error performance and forward error correction (FEC) efficiency at the OCh layer of the optical transport network (

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Table of Contents

1Scope
2References
3Definitions
3.1Termsdefinedelsewhere
3.2TermsdefinedinthisRecommendation
4Abbreviationsandacronyms
5Conventionsandbackground
5.1Conventions
5.2Background
6Measurementmodes
7Eventstobemonitored
7.1Networkevents
7.2Testsignalstructureevents
7.3Forwarderrorcorrection(FEC)events
7.4EventstobemonitoredattheOChlayer
7.5TestsignalstructuretobeusedatOPUklayer
8Generator
8.1Synchronization
8.2Bitrates
8.3Testsignalstructures
8.4Digitalsignaloutputs
8.5Anomalyanddefectadditionontheoutputsignal
9Receiver
9.1Digitalsignalinputs
9.2Testsignalstructures
9.3Errorperformancemeasurement
9.4Defectsandanomaliesindication
9.5Eventstimestamping
10Forwarderrorcorrection(FEC)performanceverification
functions
10.1Parametersandresults
10.2Errorgeneration
10.3Measurementoftheerrorcorrectionanddetection
11Miscellaneousfunctions
11.1FECactivation
11.2Display
11.3Accesstooverheadbytes
11.4Outputtoexternalrecordingdevices
11.5Remotecontrolport
12Operatingconditions
12.1Environmentalconditions
12.2Behaviourincaseofpowerfailure
AnnexA-Criteriafordetectinganomaliesanddefects
A.1Anomalies
A.2Defects
A.3Otherinformation
AnnexB-Listoftestsignalstructures
B.1TestsignalstructureTSS1appliedtoallbytesof
aCBR2G5
B.2TestsignalstructureTSS2appliedtoallbytesof
aCBR10G
B.3TestsignalstructureTSS3appliedtoallbytesof
aCBR40G
B.4TestsignalstructureTSS4appliedtoNULL/PRBS
AnnexC-ProcedureofgoodnessoffitforPoissondistribution
byx[2]test
C.1Introduction
C.2Fundamentalproperties
C.3Otherproperties
AppendixI-TestofgoodnessoffitforPoissondistribution
byx[2]test
I.1Introduction
I.2Testofgoodnessoffitbyx[2]test
I.3Theoryofx[2]test
I.4ApplicationoftestofgoodnessoffittoPoisson
distribution
Bibliography

Abstract

Describes measuring equipment for monitoring defects and anomalies and for measuring error performance and forward error correction (FEC) efficiency at the OCh layer of the optical transport network (OTN).

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