Foreword
Introduction
Clause
1 Scope
2 Normative references
3 Transmit-signal processor
   3.1 Return loss
   3.2 Alarm characteristics
   3.3 Level and shape of the signal at the output of
        the transmit-signal processor
   3.4 Jitter at the output of the transmit-signal
        processor
4 Receive-signal processor
   4.1 Acceptability of the input signal
   4.2 Return loss
   4.3 Alarm characteristics
   4.4 Level and shape of the output signal
   4.5 Output jitter in the absence of input jitter
5 Transmitter-receiver measurements
   5.1 Absolute delay time
   5.2 Acceptability of the signal at each input port
        of the transmit-signal processor
   5.3 Tolerable input jitter
   5.4 Jitter transfer function between the input of the
        transmit-signal processor and the output of the
        receive-signal processor
   5.5 Acceptable interruption at the input of the
        transmit-signal processor
   5.6 BER alarm characteristics
Figures
1 - Test arrangement for measuring the delay time of
      the loss of signal alarm
2 - Test arrangement for measuring the delay time of
      overflow alarm
3 - Comparison of the tolerable input jitter
      characteristics between the clock extractor and the
      input of the sub-system under test
4 - Test arrangement for measuring the level and shape
      of the output signal of the transmit-signal
      processor
5 - Example of pulse masks in the case of NRZ data and
      CK (clock) signals
6 - Test arrangement for measuring the acceptability
      of the signal at the input of the receiver signal
      processor
7a - Test arrangement for measuring the absolute delay
      time
7b - Example of the pattern to be used in the evaluation
      of the absolute delay time
8 - Examples of curves for the evaluation of the BER
      alarm characteristics
9 - Test arrangements for measuring the BER alarm
      characteristics
Annex ZA (normative) Other international publications
                     quoted in this standard with the
                     references of the relevant
                     European publications