Nortel DMS-100 Series Maintenance Manual page 302

7-66 Alarm clearing procedures
Ext MSP
major
(continued)
25
26
27
28
29
297-8211-550 Standard 05.01 August 1999
Check the drawer for loose or short-circuited wires.
If the wires
are loose or short-circuited
lare not loose or short-circuited, and
the fuse you handle is a ringing
voltage fuse (RA or RB)
are not loose or short-circuited, the
fuse you handle is a ringing voltage
fuse (RA or RB), and you completed
all five drawers in the shelf
are not loose or short-circuited, and
the fuse you handle is one of the
line drawer fuses (01 to 15)
Reseat all the line cards in the drawer and repeat steps 19 and 20 for the next
drawer.
DANGER
Personal injury
Do not touch the line feed resistors on the line cards.
The line feed resistors generate enough heat to burn
you.
Reseat the line cards one at a time. Check the fuse after you reseat each line
card.
If
after you reseat a line card, the fuse
blows (protrudes) again
after you reseat all the line cards,
the fuse does not blow
Remove the line card from the drawer.
Obtain a replacement line card. Make sure that the replacement card has the
same PEC and suffix as the card that you remove.
Do
step 84
step 26
step 84
step 84
Do
step 28
step 83