Avaya 03-300430 User Manual

16

FAIL

Every power supply failed.

1. Replace the failed power supplies.

2. If battery backup for the Stratum-3 clock is not supplied or if the battery 

backup holdover time has been exceeded, then the system will be 
referencing the local oscillator on the active TN780 Tone-Clock circuit 
pack until software detects that one or both power supplies have been 
restored (approximately 40 minutes). To speed up this restoration, use 
test synchronization r 4. 

3. Every test should pass. If any repetitions should fail, then follow the 

procedures for those failures. 

Note: The battery backup resides under the Stratum-3 clock’s carrier.

32

FAIL

Every clock unit failed.

1. Look at the Stratum-3 cabinet for red LEDs on circuit cards marked 

“ST3.” Replace the card(s).

2. To determine whether the alarm still exists, execute 

test synchronization r 4 to clear the alarm. 

3. If any test repetitions fail, then follow the procedures for those failures.

2101

FAIL

The TN780 Tone-Clock circuit pack detects loss of signal. See note h of the 

STRAT-3 Hardware Error Log Entries table in the STRAT-3 (Stratum-3 

Clock) Maintenance documentation for replacement procedures.

PASS

The Stratum-3 clock has reported that it has no alarm conditions. If 

synchronization problems have been reported, look for SYNC errors and 

see 

on page 2143 for recommended 

strategy for those errors.

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