ITU G.955:1996
ITU G.955:1996 Digital Line Systems Based On The 1544 Kbit/s And The 2048 Kbit/s Hierarchy On Optical Fibre Cables Gives specifications for transmitting optical signals based on both the 1544 kbit/s and 2048 kbit/s hierarchies.
Table of Contents
1Scope2References
3Termsanddefinitions
4Abbreviations
5Typeoftransmissionmedium
6Systemmargin
7Systemspecifications
7.1Regeneratorsectionlengths
7.2Errorperformance
7.3Receiverdynamicrange
7.4Opticalsource
7.5Operatingwavelengthrange
7.6Opticalpathallowancesformultimodefibresystems
7.7Opticalpathallowancesforsingle-modefibre
systems
7.8Equipmentmargin(Me)
7.9Wavelengthdivisionmultiplexing
8Powerfeeding
9Systemsforshorthaulapplications
10Workingconditions
11Overalldesignfeatures
12Maintenancestrategy
12.1Typeofsupervisionandfaultlocation
12.2Faultconditionsandconsequentactions
13Safetyconsiderations
AppendixICalculationofregeneratorsectionlength
I.1Approaches
I.1.1Worst-caseapproach
I.1.2Statisticalapproach
I.1.3Semi-statisticalapproach
I.2Statisticaldataform
I.3Examples
I.4Anexampleofastatisticalopticalpowerbudget