Avaya Definity SI Maintenance Manual page 1326

Maintenance Object Repair Procedures
Table 10-197. TEST #6 NPE Crosstalk Test — Continued
Error
Code
Any
0
Loop Around and Conference Circuit Test (#33)
This test checks the reflective and non-reflective loop around and conference
capabilities of a DID port circuit. The test that uses 404-Hz, 1004-Hz, and
2804-Hz tones is an on-board test only. Each tone is separately transmitted to and
from the port (loop around within the port) and verified.
This test may fail due to noise induced by adjacent electric power lines.
Customers having this problem should resolve it with their local power company.
10-540 Issue 4 May 2002
Test
Result
FAIL This test can fail due to on-board or off-board problems.
Off-board problems of concern include EXP-INTF faults,
TDM-BUS faults, and faults associated with the tone
detectors/tone generators. Clear all off-board problems before
replacing the board. Keep in mind that a TDM-BUS problem is
usually the result of a faulty board connected to the backplane
or bent pins on the backplane.
1. Look for EXP-INTF errors in the error log. If present, refer
to the EXP-INTF Maintenance documentation.
2. Look for TDM-BUS errors in the error log. If present, refer
to the TDM-BUS Maintenance documentation.
3. Look for TONE-BD and/or TONE-PT errors in the error log.
If present, refer to the TONE-BD Maintenance
documentation and the TONE-PT Maintenance
documentation.
4. Test the board when the faults from steps 1, 2, and 3 are
cleared. Replace the board only if the test fails.
PASS The port is correctly using its allocated time slots.
User-reported troubles on this port should be investigated
using other port tests and by examining station, trunk, or
external wiring.
NO The test could not relate the internal ID to the port (no board).
BOARD
1. Check to ensure that the board translations are correct.
Translate the board, if necessary.
2. Issue the busyout board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board command. This should re-establish
the linkage between the internal ID and the port.
Description/Recommendation
Continued on next page
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