ITU M.125:1988
ITU M.125:1988 Digital Loopback Mechanisms
Table of Contents
1General2Digitalloop-backdefinitions
2.1Loop-backtypes
3Loop-backapplications
3.1Failuredetection
3.2Faultlocalization
3.3Verification
4Loop-backoperationandrelease
5Loop-backexamples
Reference