Nortel DMS-100 Series Maintenance Manual page 422

12-74 Star Remote System card replacement procedures
NTEX54
in a STAR
(continued)
At the SRHE frame
11
297-8353-550 Standard 05.01 March 2001
WARNING
Static electricity damage
Wear a wrist strap that connects to the wrist-strap grounding
point to handle circuit cards. The wrist-strap grounding point
is on the frame supervisory panel (FSP). The wrist strap
protects the cards against static electricity damage.
WARNING
Potential equipment damage
Note the fuses that you remove from the fuse panel. If you
do not insert fuses in the correct location on the fuse panel,
equipment damage occurs.
WARNING
Equipment damage
Take these precautions when removing or inserting a card:
1. Do not apply direct pressure to the components.
2. Do not force the card into its slot.
Remove fuses for the line drawer containing the faulty DBIC. Refer to the
figure and table that follow to identify the correct fuses. Perform the following
steps.
a Remove the -48V fuse for the line drawer that contains the faulty DBIC.
b Remove the +15V fuse for the line drawer that contains the faulty DBIC.
c Remove the +5V fuse for the line drawer that contains the faulty DBIC.
Note: The line drawer fuses are grouped and labeled as +5 V, +15 V,
and -48 V and are numbered from 1 to 18. The line drawers are
numbered from 1 to 18. Any +5 V, +15 V, or -48 V fuse in position 1 is
associated with line drawer 1 and any fuse in position 2 is associated
with line drawer 2, and so forth.