Nortel Meridian 1 Replacement Manual page 120

Page 120 of 362
553-3001-520 Standard 16.00 April 2000
Replacing equipment
10 Follow the steps below to disengage the module:
a Remove the two mounting screws that secure the rear of the card
cage to the module.
b Remove the front trim panels on each side of the card cage.
c Remove the three mounting screws that secure the front of the card
cage to the bottom of the module.
d Pull the card cage halfway out of the module.
11 Follow the steps below to disconnect power and ground connections at
the rear of the module:
a Disconnect the system monitor ribbon cables to J1 and J2.
b Disconnect the module power connectors. These are small orange
connectors plugged into the module power distribution unit
(MPDU) with AC power, or connected to each other with DC power.
c Disconnect the logic ground (orange) wire from the backplane bolt.
d Disconnect the frame ground (green) wire from the frame ground
post.
Do not disconnect the main power connectors (large orange
connectors) at the top and bottom of the module.
12 Pull the card cage all the way out of the module.
Note: For AC-powered systems, after the card cage is out of the module
you must remove the MPDU and reinstall it on the replacement card
cage. The screw-heads for the MPDU are in the wall of the power supply
slot.
13 Remove the floating power connector (the black connector) on the rear
of the card cage. Using the same mounting screws and nuts, attach the
connector to the new card cage.
WARNING