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ITU G.957:2006

ITU G.957:2006 Optical Interfaces For Equipments And Systems Relating To The Synchronous Digital Hierarchy Specifies optical interface parameters for equipments and systems based on the Synchronous Digital Hierarchy to enable transverse compatibility.

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Table of Contents

1Scope
2References
3Termsanddefinitions
3.1Definitions
3.2TermsdefinedinotherRecommendations
4Abbreviations
5Classificationofopticalinterfaces
6Parameterdefinitions
6.1Systemoperatingwavelengthrange
6.2Transmitter
6.3Opticalpath
6.4Receiver
7OpticalparametervaluesforSDHapplications
8Opticalengineeringapproach
8.1Designassumptions
8.2Worst-casedesignapproach
8.3Statisticaldesignapproach
8.4Upgradeabilityconsiderations
8.5Jointengineering
AnnexA-Systemoperatingwavelengthconsiderations
A.1Operatingwavelengthrangesdeterminedbyfibre
attenuation
A.2Operatingwavelengthrangesdeterminedbyfibre
dispersion
AnnexB-Measurementofthemaskoftheeyediagramof
theopticaltransmitsignal
B.1Measurementset-up
B.2Transferfunctionoftheopticalreferencereceiver
AppendixI-Methodsformeasuringreflections
I.1Opticalcontinuous-wavereflectometer
I.2Opticaltime-domainreflectometer
AppendixII-ImplementationoftheConsecutiveIdentical
Digit(CID)immunitymeasurement
II.1Introduction
II.2Method
AppendixIII-Possiblemethodforevaluatingagingmargin
contributioninreceiversensitivity
specifications
III.1Receiversensitivityandeyeopening
III.2S/Xtestmethod
AppendixIV-Upgradeabilityexamples
IV.1Example1
IV.2Example2

Abstract

Specifies optical interface parameters for equipments and systems based on the Synchronous Digital Hierarchy to enable transverse compatibility.

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