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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1419TDM-CLK (TDM Bus Clock)
10
TDM Bus Clock PPM Inquiry Test (#150)
This test evaluates the quality of the synchronization source for the Tone-Clock
circuit pack
Table 10-432. 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 resources 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 oscillator on the master Tone-Clock circuit pack, if it is
providing the system clocking signals.
4. An EXP-INTF circuit pack, if the port network on which the test was
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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