Nortel DMS-100 Series Maintenance Manual page 249

6 Obtain a replacement fuse with the same voltage and amperage as the blown
fuse.
7 Remove the blown fuse.
8
DANGER
Risk of fire
Replace the blown fuse with a fuse of the same type,
rating (color code) and vendor. This action provides
continued protection against risk of fire.
Insert the replacement fuse.
If the fuse
blows again
does not blow
9 Determine which fuse is 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 any one of 01 to 05
is any one of 06 to 15
is any one of RA or RB
DMS-100 Family RLCM Maintenance Manual XPM12 and up
RLCM alarm clearing procedures 7-65
RLCE frame major
Do
step 112
step 105
Do
step 14
step 10
step 14
Ext FSP
(continued)