Maintenance Object Repair Procedures
555-233-123
10-92 Issue 4 May 2002
Any 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 by
using other port tests, by examining station wiring, by
examining the station, and by ensuring that the terminal is
correctly translated as off-premises or on-premises.
NOTE:
This test always passes for Analog circuit packs TN712
prior to Vintage 14 and TN742 prior to Vintage 4.
Table 10-32. TEST #6 NPE Crosstalk Test — Continued
Error
Code
Te s t
Result Description/Recommendation
Continued on next page
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