Nortel Meridian 1 Hardware Replacement Manual page 136

Page 136 of 250
553-3001-520 Standard 17.00 January 2002
Replacing equipment
— On the NT5D2103 card cage, the LEDs are on the front side of the
backplane. The LEDs are in two vertical columns, one on either
side of slot 12 (if necessary, remove the CNI card to view the
LEDs). The LEDs on the right side of the slot apply to Core 0 and
must be (from the top down) OFF-OFF-OFF-OFF. Those on the
left side apply to Core 1 and must be ON-OFF-OFF- OFF.
c. Shut down power to the module again.
With AC power, set the main breaker for the column to OFF (down).
With DC power, set the switch on the power supply and the pedestal breaker
for the module to OFF (down).
20 Install the module power supply in the slot labeled "CE pwr sup" in the
Core/Network card cage.Follow the steps below to reconnect cables to
the backplane:
a. Reconnect all cables to the backplane connectors.
CAUTION
Damage to Equipment
If you try to insert the cable connector at an angle,
pins may be bent or broken.
b. Route the NTND14 CNI to 3PE cables to the right side (facing the
rear) of the module and tie-wrap them to the cable restraint
bracket behind the I/O panel.
c. Position and secure the I/O panels.
d. Position and secure the I/O safety panel.
21 Reinstall the 3PE card. Set the ENB/DIS switch to ENB.
22 Set the ENB/DIS switch on the clock controller card to DIS. Seat the
clock controller card; leave the ENB/DIS switch set to DIS and do not
connect the faceplate cables.
23 Follow the appropriate step below to turn on power to the column or
the module power supply:
a. With AC power, set the main circuit breaker in the pedestal to ON
(up).
b. With DC power, set the breaker to ON (up) in the pedestal. Set the
switch to ON (up) on the power supply in the module.