Lucent Technologies 555-233-119 TDM Bus Clock Parameter Update Test (#151), Standby Reference Health Check Test (#651)

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-1077TDM-BUS (TDM Bus)
3
TDM Bus Clock Parameter Update Test (#151)
This action updates the Tone-Clock internal circ uit pack parameters. Tone-Clock
circuit pack:
■Disable in-line duplic ation status messages.
■Set the PPM threshold at 85 PPM for TN2182.
■Enable PPM threshold switching
■Set the number of slips to trigg er loss of signal - currently 30 per 5
millisecond period
■Enable the on-board synchronizatio n switching algorithm (see a bove)
■Enable holdover operation (TN2182 only).
This is not a test and will always pass without id entifying or reporting any
Tone-Clock circuit pac k errors.
Standby Reference Health Check Test (#651)
This test evaluates the quality of the external synch ronization timing source for
the Standby Tone-Clock circuit pac k.
PASS The 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 referenc e is a Tone-Clock circ uit pack. The status
synchronization command should b e used to verify that the desired
synchronization reference is providing timing for the system.
Table 3-478. TEST #151 TDM Bus Clock Parameter Update Test
Error
Code
Test
Result Description/ Recommendation
ABORT Internal system error
FAIL Internal system error
1. Retry the command at 1-minute intervals a maximum of 5 times.
PASS The Tone-Clock circuit pack parameters have been successfully updated .
Continued on next page
Table 3-477. TEST #150 TDM Bus Clock PPM Inquiry Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page