User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-934MMI-BD
10
TSI Looparound Test (#1108)
This test is non-destructive.
During this test, the MMI’s Time Slot Interchanger (TSI) is listens to a TDM
timeslot. A digital count tone loops back in the TSI and onto another TDM timeslot
without passing through any resource hardware. A tone detector port verifies the
looped data. If the digital count is correct, then the test passes. The test is done
for both TDM buses. Failures indicate that the TSI is unreliable.
1003 ABORT The system could not allocate a tone detector for the test. The system is
oversized for the number of tone detectors present, or some tone detectors are
out-of-service.
1. Resolve any “TTR-LEV” errors in the Error Log.
2. Resolve any “TONE-PT” errors in the Error Log.
3. If neither condition exists, retry the test at 1-minute intervals a maximum of
5 times.
2000 ABORT Response to the test was not received from the MMI-BD circuit pack within the
allowable time period.
1. If this result occurs repeatedly, attempt to reset the circuit pack if the other
ports are not in use. Reset the circuit pack by issuing the busyout board
PCSS, reset board PCSS, followed by the release board PCSS
commands.
2. If this result occurs again, replace the circuit pack.
2012 ABORT Internal system error. This is an abnormal abort.
2100 ABORT Could not allocate the necessary resources to run this test. This is an abnormal
abort.
1. Retry the command at 1-minute intervals a maximum of 5 times.
FAIL The TSI was found to be transmitting in error. This causes noisy and unreliable
connections.
1. Replace the circuit pack.
PASS The TSI is correctly using its allocated time slots.
Table 10-266. TEST #6 TSI Crosstalk Test — Continued
Error
Code
Test
Result Description/Recommendation
Continued on next page