Avaya S8700 Maintenance Manual page 1636

Maintenance-Object Repair Procedures
Table 8-352. Test #57 Hybrid Circuit and Conference Circuit Test — Continued
Error Test
Code Result Description / Recommendation
57 FAIL Hybrid Circuit test failed. This could result in noisy or bad connections.
1. This error can be caused by a disconnected terminal. First, ensure that the
2. Run circuit pack tests to check the Tone Generator circuit pack and the
3. Resolve any problems that are detected on the Tone Generator circuit pack
4. If the Tone Generator and Tone Detector circuit packs are functioning
PASS Hybrid Circuit and Conference Circuit test passed. The hybrid circuitry is
transmitting properly.
1. If complaints still exist, investigate by using other port tests, and by
0 NO The test could not relate the internal ID to the port (no board). This could be
BOARD due to incorrect translations, no board inserted, an incorrect board inserted, or
an insane board inserted.
1. Check that the board translations are correct. Use the list config
2. If the board was found to be correctly inserted in step 1, issue the busyout
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board long command. This should re-establish the linkage
8-914 Issue 1 May 2002
terminal is connected and the wiring is OK.
Tone Detector circuit pack using the test board UUCSS short command.
or Tone Detector circuit pack.
properly, and the test still fails, replace the Hybrid Line circuit pack.
NOTE:
If the Hybrid Circuit and Conference Circuit test fails for every port on a
circuit pack, a -5 volt power problem is indicated. The AC power unit
may be defective. The system may contain a TN752 power unit circuit
pack or a 631DB AC power unit, but not both types of power units. To
investigate problems with a power unit, see
Supply)''.
examining the station, wiring, and connections.
command, and resolve any problems.
board command.
between the internal ID and the port. If this is not the case, check that
there is a valid board inserted.
''CARR-POW (Carrier Power
Continued on next page
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