Nortel DMS-100 Series Maintenance Manual page 512

8-172 OPM card replacement procedures
NT6X54
in an OPM
(continued)
15
16
17
18
19
20
At the MAP terminal
21
22
297-8361-550 Standard 04.01 September 2000
b Push up on the drawer latch with your thumb and pull the drawer out
approximately 15.0 cm (about 6.0 in).
Remove the BIC to be replaced by following these substeps:
a Open the locking levers on the BIC.
b Grasping the open locking levers, remove the card from the line drawer
in one steady motion. The card will unplug from its socket.
Note: Do not use a rocking motion to remove the card.
Replace the faulty card by following these substeps:
a Remove the replacement card from the ESD container.
b Open the locking levers on the card.
c Position the card in its backplane socket. In one steady motion, push
against the top and bottom of the card with your thumbs until the card
plugs fully into the backplane socket, close and lock the locking levers.
Note: Do not use a rocking motion to insert the card.
d Close the line drawer.
Replace the +5V fuse for the line drawer containing the faulty bus interface
card.
Replace the +15V fuse for the line drawer containing the faulty bus interface
card.
Replace the -48V fuse for the line drawer containing the faulty bus interface
card.
If you were directed to this procedure from the Alarm clearing procedure ,
return now to the main procedure that directed you here. Otherwise, continue
with step 21.
Determine which procedure to use to return the line subgroups to service.
If the card you are replacing is
NT6X54AA
NT6X54DA
Return the line subgroups to service by typing
>RTS DRWR lsg
and pressing the Enter key.
where
lsg
is one of two line subgroups (0 through 19) associated with the drawer
Do
step 22
step 23