COMSPHERE 3600 Series Data Service Units
G-2
July 1999
3610-A2-GB91-90
DSU Troubleshooting
Diagnostic testing can be performed to troubleshoot
and correct out-of-service, no signal, streaming terminal,
and out-of-frame conditions. Figures G-1 through G-4 are
flowcharts for troubleshooting each of these conditions.
When DSU error messages appear, refer to the
appropriate error messages listed in
Appendix
C
to correct
the problem.
DBM Troubleshooting
Digital circuits are generally highly reliable and DBMs
may be idle for long periods. To ensure that dial backup
capability is available when needed, enabling the
configuration option Dial Tone (Dial Tone Test) as
described in Table 6-5,
DBM Configuration Options
, is
recommended.
When DBM error messages appear, refer to the
appropriate error messages listed in
Appendix
C
to correct
the problem.
Figure G-1. Out-of-Service (OOS) Condition Troubleshooting
Содержание COMSPHERE 3610
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Страница 246: ...COMSPHERE 3600 Series Data Service Units E 2 July 1999 3610 A2 GB91 90 Figure E 1 Control Channel ...
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Страница 263: ...Troubleshooting G 3 3610 A2 GB91 90 July 1999 Figure G 2 No Signal NS Condition Troubleshooting ...
Страница 265: ...Troubleshooting G 5 3610 A2 GB91 90 July 1999 Figure G 4 Out of Frame OOF Condition Troubleshooting ...
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