Nortel DMS-100 Series Maintenance Manual page 215

6 Determine which fuse has blown.
Note: Fuses 01 to 05 each supply +5 V, fuses 06 to 10 each supply +15 V,
and fuses 11 to 15 each supply –48 V.
If the blown fuse
is one of 01 to 05
is one of 06 to 15
7
Use the following table to determine which +15V fuse (06 through 10)
associates with which –48V fuse (11 through 15).
–48V fuse number
11
12
13
14
15
8 Remove the blown fuse and the associated fuse. For example, if the blown
fuse is 11, remove fuse 06 also.
9 Obtain a replacement fuse with the same voltage and amperage as the blown
fuse.
DMS-100 Family RLCM Maintenance Manual XPM12 and up
RLCM alarm clearing procedures 7-31
RLCM talk battery alarm
critical
Do
Remove the blown fuse and go to
step 9
step 7
+15V fuse number
06
07
08
09
10
(continued)