DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures

9-1733TDM-CLK (TDM Bus Clock)

9
Board Type Check Test (#574)

This test verifies that a Tone-Clock circuit pack adm inistered with a Stratum 3

Clock source has cod e TN780

Standby Reference Health Check Test (#651)

This test evaluates the quality of the external synchronizati on timing source for a

standby Tone-Clock circuit p ack. All administered sy nchronization timing sources

must be valid for this test to p ass. If the tone-clock circ uit pack and the

synchronization timing sources are in d ifferent port networks, the EI circuit pac ks

transport the timing sources to the tone-clock.

Table 9-650. TEST #574 Board Type Check Test
Error
Code Test
Result Description/ Recommendation
2012 ABORT Internal system error
1. Retry the command at 1-minute intervals a maximum of 5 times.
ANY FAIL Stratum 3 Clock Synchronization is administered for the carrier in which this
Tone-Clock circuit pack resides, but the Tone-Clock does not have code
TN780.
1. If the Stratum 3 Clock option is incorrectly administered, remove it.
2. Otherwise, replac e the circuit p ack. See

How to Replace the Tone-Clock

Circuit Pack
in the TONE-BD section.
PASS The proper (TN780) Tone-Clock circuit p ack code is present for Stratum 3
Clock synchronization.
Continued on next page
Table 9-651. 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 seco n dary, or Stratum 3 Clock).
1. Administer the external synchronization source and retry the test.
Continued on next page