Demand test descriptions and error codes - Avaya Support

Maintenance Demand Tests
Table 348: TDM Bus Clock PPM Inquiry Test (#150) 2 of 2
Error
Code
Test
Result
Description / Recommendation
PASS The IPSI or Processor/Tone-Clock circuit pack does not detect timing any
PPM errors. This indicates that the external synchronization timing source
is valid or that the system synchronization reference is an IPSI or
Processor/Tone-Clock circuit pack. Enter status synchronization
to verify that the desired synchronization reference is providing timing for
the system.
TDM Bus Clock Parameter Update Test (#151)
This test updates the following internal parameters on the IPSI or Tone-Clock circuit pack:
● Disables inline duplication status messages.
● S8700-series Fiber-PNC: Disable inline subrate frame maintenance messages (TN768,
TN780 only).
● S8700-series Fiber-PNC: Sets the PPM threshold at 60 PPM for TN768 and TN780.
Sets the PPM threshold at 85 PPM for TN2182 and TN2312.
● Enables PPM threshold switching.
● Sets the number of slips to trigger loss of signal - currently 30 per 5-millisecond period.
● Enables the on-board synchronization switching algorithm (see above).
● Enables holdover operation (TN2182 and TN2312 only).
This test always passes without identifying or reporting any IPSI or Tone-Clock circuit pack
errors.
This test runs on the following maintenance objects:
● TDM-CLK (TDM Bus Clock)
● TONE-BD (Tone-Clock Circuit Pack)
● TONE-PT (Tone Generator)
1264 Maintenance Alarms for Communication Manager, Media Gateways and Servers
2 of 2