Unit installation

Installation and Operation Manual Appendix D Command Language

FCD-E1 Supervisory Terminal Commands D-35

PRESS I FOR ERRORS INJECT

PRESS S FOR STOP ERRORS INJECT

PRESS C TO CLEAR ERROR BITS

When using the single-error mode, pressing I injects a single error. To inject an

additional error, first press S before pressing I.

To stop the monitoring and obtain again the command prompt, press

<CTRL-C> (BREAK).

4. When using Telnet, it is not possible to monitor the results. Therefore, use the

following command to display the results and start the injection of errors:

DSP BERT CH 1 /I<Enter> or DSP BERT CH 2 /I<Enter>

and the commands:

DSP BERT CH 1 /S<Enter> or DSP BERT CH 2 /S<Enter>

to display the results and then stop the injection of errors.

The BER test results displayed on the screen are correct for the instant the display

command has been issued (or since the last time the counters have been cleared,

whichever occurred last). When the /R option is used, the results are periodically

updated. The results are presented in the following format:

ERROR_BITS RUN_TIME(SEC) ERRORS(SEC) SYNC_LOSS(SEC)

ERROR_INJECT

0 100 0 0 OFF

The display fields are as follows:

ERROR_BITS Total number of bit errors detected.

RUN_TIME(SEC) Total time the test is running.

ERRORS(SEC) Total number of seconds in which errors have been detected.

SYNC LOSS(SEC) Total number of seconds in which loss of frame alignment

occurred.

ERROR INJECT(SEC) Indicates whether errors are injected (ON) or not (OFF).

All the counters have a range of 0 through 65535. When the maximum value is

reached, the counter freezes, therefore in general a value of 65535 indicates the

counter has overflown.

Note