Table of Contents
1Scope
2References
3Termsanddefinitions
4Abbreviations
5Generaldescriptionofinternationalsynchronousdigital
leasedcircuits
5.1Leasedcircuitconfiguration
5.2Networkinterfaces
5.3Timingandnetworksynchronization
5.4Designations
5.5Performance
6Operationalprocedures
6.1Controlandsub-controlstations
6.2BISprocedures
6.3Maintenanceprocedures
7Maintenancerecords
8Protectionandreservearrangements
ANNEXA-Faultmanagement
A.1-Initialreceptionofafaultreport
A.2-Faultinformationexchange
A.3-Faultlocalization
A.4-Circuitrestoration
A.5-Temporaryservicerestoration
A.6-AutomaticreroutingofinternationalSDHtransmission
links
A.7-PrecautionstobetakenintheuseofDCSs Abstract
Provides a general description of international synchronous digital leased circuits with an SDH presentation to the customer, and of the basic requirements for their effective operation. The case of mixed SDH/PDH leased circuits is also described.
