Nortel DMS-100 Series Maintenance Manual page 308

7-72 Alarm clearing procedures
Ext MSP
major
(continued)
62
63
64
65
66
67
68
69
297-8211-550 Standard 05.01 August 1999
Check the converter you just replaced. Check the associated circuit breaker.
If the circuit breaker
goes OFF, and the CONVERTER
FAIL LED is lit
remains ON, and the CONVERTER
FAIL LED is not lit
remains ON, and the CONVERTER
FAIL LED is lit
Set the circuit breaker to OFF.
Remove the NT6X51 and NT6X52 cards from the shelf with the lit
CONVERTER FAIL LED.
Set the circuit breaker to ON.
If the CONVERTER FAIL LED
is lit
is not lit
Set the circuit breaker to OFF.
Insert the NT6X51 card in the shelf.
Set the circuit breaker to ON.
If the circuit breaker
goes OFF, and the CONVERTER
FAIL LED is lit
remains ON, and the CONVERTER
FAIL LED is not lit
remains ON, and the CONVERTER
FAIL LED is lit
Set the circuit breaker to OFF.
Do
step 64
step 81
step 63
Do
step 78
step 66
Do
step 70
step 72
step 69