Nortel DMS-100 Series Maintenance Manual page 281

39 Reseat all the other line cards in the drawer.
40 Push the drawer back in. Go to step 105.
41 Use the following table to identify the circuit breaker associated with the RG
that is lit FAIL LED. The CB is located at on the FSP.
If RG number is
RG0 (far left)
RG1
42 Determine if the associated circuit breaker is ON or OFF.
If the circuit breaker
is ON
is OFF
43 Set the circuit breaker to ON.
If the circuit breaker
turns OFF, and the FAIL LED
on the RG is lit
remains ON, and the FAIL LED
on the RG is not lit
remains ON, and the FAIL LED
on the RG is lit
At the PDC frame
44 Locate the fuse that powers the RG in the OPM frame.
45 Determine if the fuse is blown.
If the fuse
is blown
is not blown
46 Remove the fuse holder that contains the blown fuse.
47 Replace the cartridge fuse inside the fuse holder.
OPM alarm clearing procedures
OPM cabinet major
DMS-100 Family OPM Maintenance Manual XPM14 and up
Do use circuit breaker number
CB2
CB3
Do
step 52
step 43
Do
step 44
step 105
step 52
Do
step 46
step 113
7-61
Ext FSP
(continued)