Nortel DMS-100 Series Maintenance Manual page 523

c Using a Phillips head screwdriver, unscrew the five Phillips head screws
and remove the screws, lock washers, and flat washers that secure the
NTTR76 card to the back of the FSP front panel.
d Carefully remove the NTTR76 card.
e Place the card you have removed in an electrostatic discharge (ESD)
protective container.
f Ensure the replacement card has the same product equipment code
(PEC), including suffix, as the card you just removed.
14 Install the new NTTR76 talk battery and circuit breaker card by performing the
following steps:
a Install the new NTTR76 card.
b Install the five Phillips head screws, lock washers, and flat washers in the
NTTR76 card to secure the card to the back of the FSP front panel.
Tighten the screws after all five screws are installed.
c Install the cover.
d Reconnect the four cable connectors on the NTTR76 card that were
disconnected in step 13a
15 Close the FSP front panel. Secure the FSP front panel by tightening the two
screws that were loosened in step 10.
16 Connect the power from the PDC to the Star Hub by restoring the fuses to the
relevant NTTR76 units.
17 Install the fuses in the FSP front panel that were removed in Step 9. Use the
figure titled "FSP front panel" to aid in correct fuse placement.
18 Restore power to the unit's ringing generators, power converters, line
drawers, and UMP cards by setting the circuit breakers to the On position that
were turned Off in step 8. Refer to the table in step 8.
19 Busy the STAR unit that was offlined in steps 5 and 6 by typing
>BSY UNIT unit_no
and press the Enter key
20 Observe the fuses on the FSP front panel. Determine if there are blown
fuses.
If
there are no blown fuses
there are blown fuses
At the MAP terminal
21 To return to service the STAR, type
>RTS UNIT unit_no
and press the Enter key.
where
Star Remote System card replacement procedures
DMS-100 Family NA100 Star Remote System XPM15 and up
in a STAR
Do
step 21
step 25
12-175
NTTR76
(continued)