Maintenance Object Repair Procedure
555-233-142
8-1132 Issue 1 May 2002
TDM Bus Clock Parameter Update Test (#151)
This test updates the following internal parameters on the IPSI circuit pack:
■ Disable in-line duplication status messages.
■ Set the PPM threshold at 85 PPM for TN2312.
■ Enable PPM threshold switching
■ Set the number of slips to trigger loss of signal - currently 30 per
5-millisecond period
■ Enable the on-board synchronization switching algorithm (see above)
■ Enable holdover operation
This is not a test and will always pass without identifying or reporting any IPSI
circuit pack errors
Table 8-484. Test #151 TDM Bus Clock Parameter Update Test
Error
Code
Tes t
Result Description / Recommendation
ABORT Internal system error
FAIL Internal system error
1. Retry the command at 1-minute intervals up to 5 times.
PASS The IPSI circuit pack parameters have been successfully updated.
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