User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1405TDM-BUS (TDM Bus)
10
TDM Bus Clock PPM Inquiry Test (#150)
This test evaluates the quality of the synchronization source for the Tone-Clock
circuit pack.
ANY
(cont’d.)
FAIL 3. If there are no SYNC or DS1-BD errors and
a. this error was logged against the Tone-Clock circuit pack that was
the current system synchronization reference at the time (use the
command status synchronization to determine this), replace this
Tone-Clock circuit pack.
NOTE:
Disruption may occur when executing the following procedures.
b. the Tone-Clock circuit pack you are testing is in Active mode but
does not contain the current system synchronization reference,
switch the synchronization reference to the Tone-Clock circuit pack
under test via the set synchronization PC command. Retry the
command. If the error is still present, replace this Tone-Clock circuit
pack.
c. the Tone-Clock circuit pack under test is in Standby mode, make it
active via the set tone-clock PC command and switch the
synchronization reference to it. Reissue the command. If the error is
still present, replace this Tone-Clock circuit pack.
PASS The Tone-Clock circuit pack does not detect any timing slips. This indicates
that the external 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.
Table 10-425. TEST #149 TDM Bus Clock Slip Inquiry Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page