Lucent Technologies Release 7 TDM Bus Clock PPM Inquiry Test (#150)

DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4 June 1999
Maintenance Object Repair Procedures
9-1730TDM-CLK (TDM Bus Clock)
9
TDM Bus Clock PPM Inquiry Test (#150)
This test evaluates the quality of the synchronization sourc e for the Tone-Clock
circuit pack.
Table 9-647. TEST #149 TDM Bus Clock Slip Inquiry Test
Error
Code Test Result Description/ Recommendation
ABORT The system could not allocate the necessary resources for the test.
1001 ABORT The system could not allocate the necessary resources for the test.
1. Wait 1-minute, and retry the test.
2000 ABORT Response to the test request was not received within the allowable time period.
2100 ABORT System resourc es required to run this test are not available.
1. Retry the command at 1-minute intervals a maximum of 5 times.
Any FAIL The error code represents the number of timing slips detected on the incoming
synchronization source since the last slip inquiry was sent to the Tone-Clock
circuit pack. The incoming synchronization signal can be from one of four
sources:
1. A Stratum 3 Clock, if that option is administered and the circuit pack tested
was the active Tone-Clock in the PPN.
2. A DS1 Interface circuit pack, if DS1 Synchronization is administered, and
associated with the circuit pack tested.
3. The local oscilla tor on the master Tone-Clock circuit pa ck, if it is providing
the system clocking signals.
4. An EXP-INTF ci rcuit pack , if the port networ k on whi ch th e test w as
executed does not contain the current system synchronization reference.
The error code is a variable amount ranging from 1 to 255.
1. Small numbers of slips should not result in service degradation. If the error
code is small (1 or 2), rerun the test. If the error only occurs infrequently, it
may be ignored.
2. Otherwise, refer to the “Approach to Troubleshooting” section in the
Synchronization (SYNC) Maintenance section of this manual.
PASS The Tone-Clock circuit pack does not detect any timing slips. This indicates that
the incoming synchronization timing source is valid or that the system
synchronization reference is a Tone-Clock circuit pack. The status
synchronization command should be used to verify that the desired
synchronization reference is providing timing for the system.
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