Maintenance-Object Repair Procedures
555-233-143
8-1614
Issue 1 May 2002
TDM Bus Clock Slip Inquiry Test (#149)
This test evaluates the quality of the synchronization source for the IPSI circuit
pack’s Tone-Clock circuit or Tone-Clock circuit pack.
NOTE:
This test does not apply to the TN2182.
Table 8-626.
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 up to 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 DS1 Interface circuit pack, if DS1 Synchronization is administered, and
associated with the circuit pack tested.
2. A Stratum-3 clock, if that option is administered and the circuit pack tested
was the active Tone-Clock in the EPN 1.
3. The local oscillator on the master IPSI’s Tone-Clock circuit or on the
master Tone-Clock circuit pack, if it is providing the system’s clocking
signals.
4. An EXP-INTF circuit pack, if the EPN on which the test was executed does
not contain the system’s current 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.
in the
section of this manual.
PASS
The IPSI or Tone-Clock circuit pack does not detect any timing slips. This
indicates that the incoming synchronization timing source is valid or that the
system’s synchronization reference is an IPSI or Tone-Clock circuit pack. The
status synchronization command should be used to verify that the desired
synchronization reference is providing timing for the system.
Continued on next page
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...