ITU M.620:1988
ITU M.620:1988 Methods For Carrying Out Routine Measurements On Circuits
Table of Contents
1Measurementsandtestscarriedoutmanually1.1Measurementsofoverallloss
1.2Noisemeasurements
1.3Signallingtests
1.4Records
2Useofautomatictransmissionmeasuringand
signallingtestingequipment-ATMENo.2
2.1Transmissionmeasurements
2.2Signallingtests
2.3Testofechocontroldevices
3Correctiveaction
3.1Readjustmentofoverallloss
3.2Measurementsatmorethanonefrequency
3.3Noisemeasurements
4Othermeasurementswithoutrecommendedperiodicity
References