Nortel DMS-100 Series Maintenance Manual page 297

Clearing an Ext MSP major alarm
At the OPAC
1 Check the CONVERTER FAIL LED on each converter in the cabinet.
If
a CONVERTER FAIL LED is lit
the CONVERTER FAIL LEDs are
lnot it
2 Check the RG FAIL LED on both RGs. The RGs are located at the bottom of
the cabinet. The FAIL LED is located on the front panel of the RG.
If
an RG's FAIL LED is lit
the RGs FAIL LEDs are not lit
3 Check the line drawer fuses located on the fuse panel at the top of bay 0.
If
a fuse is blown (protrudes)
the fuses are not blown
4 Check the alarm battery supply (ABS) fuses (01 to 04). These fuses are
located on the MSP.
If
a fuse is blown (protrudes)
the fuses are not blown
5 Obtain a replacement fuse with the same voltage and amperage as the blown
fuse.
DMS-100 Family OPAC Maintenance Manual XPM12 and up
Alarm clearing procedures 7-61
major
Do
step 51
step 2
Do
step 39
step 3
Do
step 8
step 4
Do
step 5
step 84
Ext MSP
(continued)