MMI-BD
Issue 1 May 2002
8-1117
555-233-143
TSI Loop-Around Test (#1108)
This test is nondestructive.
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.
Table 8-460.
Test #1108 TSI Loop-Around Test
Error
Code
Test
Result
Description / Recommendation
ABORT
Internal system error. This is an abnormal abort.
1. Retry the command at 1-minute intervals up to 5 times.
1002
ABORT
The system could not allocate time slots for the test. Either the traffic load on
the system is very high or time slots are out-of-service due to TDM-BUS errors.
1. If the system has no TDM-BUS errors and is not handling heavy traffic,
repeat the test at 1-minute intervals up to 5 times.
1003
ABORT
The system could not allocate a tone detector for the test. The system may be
oversized for the number of Tone Detectors present, or some Tone Detectors
may be out-of-service.
1. Resolve any TTR-LEV errors.
2. Resolve any TONE-PT errors.
3. If neither condition exists, retry the test at 1-minute intervals up to 5 times.
2000
ABORT
Response to the test was not received from the Tone Detector circuit pack
within the allowable time period.
1. If this result occurs repeatedly, attempt to reset the circuit pack (if the other
ports are idle). Reset the circuit pack by issuing the busyout board
UUCSSpp and the reset board UUCSSpp commands followed by the
release board UUCSSpp command.
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 up to 5 times.
FAIL
The TSI was found to be transmitting in error, causing noisy and unreliable
connections.
1. Replace the circuit pack.
PASS
The TSI is correctly using its allocated time slots.
Continued on next page
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...