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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1345TDM-CLK (TDM Bus Clock)
10
Standby Reference Health Check Test (#651)
This test evaluates the quality of the external synchronization timing source for a
standby Tone-Clock circuit pack. All administered synchronization timing
sources must be valid for this test to pass. If the tone-clock circuit pack and the
synchronization timing sources are in different port networks, the EI circuit packs
transport the timing sources to the tone-clock.
PASS The proper (TN780) Tone-Clock circuit pack code is present for Stratum 3
Clock synchronization.
Table 10-470. TEST #651 Standby Reference Health Check Test
Error
Code
Test
Result Description/ Recommendation
ABORT This test may already be running due to a tone-clock installation, scheduled
maintenance, alarm activity, or a technician-demand test from another
terminal. This abort can also occur due to an internal system error.
1. Try the command again at 1-minute intervals up to five times.
1184 ABORT This test requires an external synchronization source to be administered
(DS1 primary, DS1 primary and secondary, or Stratum 3 Clock).
1. Administer the external synchronization source and retry the test.
2500 ABORT Internal System Error
1. Try the command again at 1-minute intervals up to 5 times.
0 FAIL The external synchronization timing source for side A of the Stratum 3
clock, or for the primary DS1 reference is either absent or invalid. The
external synchronization timing source for side B of the Stratum 3 clock, or
for the secondary DS1 reference is not yet tested.
1 FAIL The external synchronization timing source for side B of the Stratum 3
clock, or for the secondary DS1 reference is either absent or invalid.
1. Correct the synchronization source problem. Refer to the
Synchronization (SYNC) maintenance section of this manual.
2. If the error still exists, replace the Tone-Clock circuit pack reported in
the error log. See
How to Replace the Tone-Clock Circuit Pack
in the
TONE-BD section.
Continued on next page
Table 10-469. TEST #574 Board Type Check Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page