Nortel DMS-100 Series Maintenance Manual page 248

7-28 OPM alarm clearing procedures
LCM talk battery alarm
critical
(continued)
7
8
9
10
11
At the PDC frame
12
297-8361-550 Standard 04.01 September 2000
Use the following table to determine the +15V fuse (06-10) associated with a
-48V fuse (11 to15).
If-48V fuse number
11
12
13
14
15
Remove the blown fuse and the associated fuse. For example, if the blown
fuse is fuse 11, remove fuse 06.
Obtain a replacement fuse with the same voltage and amperage as the blown
fuse.
DANGER
Risk of fire
For continued protection against risk of fire, replace the
blown fuse with a fuse of the same type, rating (color code),
and manufacturer.
Insert the +15V fuse, and the -48V fuse.
If the fuse
blows again
does not blow
Make a visual inspection of the frame supervisory panel (FSP). Check circuit
breakers CB8 and CB9.
If circuit breakers
tripped
did not trip
Locate the fuses that power the OPM talk battery circuits.
Do +15V fuse number
06
07
08
09
10
Do
step 56
step 11
Do
step 21
step 12