ITU Q.33:1988
ITU Q.33:1988 Protection Against The Effects Of Faulty Transmission On Groups Of Circuits
Table of Contents
1General2Mixedtransmissionsystems
2.1Circuitsupervisionfordigitalsystems
3Signallingofcircuitsupervisionindications
3.12048kbit/sPCMsystems
3.21544kbit/sPCMsystems
4ActionsinSignallingSystemsNos.5,6andwhena
transmissionalarmoccurs
4.1SignallingSystemNo.5
4.2SignallingSystemNo.6orSignallingSystem
No.7
ANNEXACircuitsupervisionviaTDMA/DSIsatellite
systems
A.1General
A.2Circuitsupervision
APPENDIXIFormatofeach64kbit/sunitforminga
satellitelinesignallingchannel(LSC)for
SystemR2linesignalling
APPENDIXIIEnd-to-endcircuitsupervisionforin-band
andcommonchannelsignallingsystems
References