Nortel Meridian 1 Hardware Replacement Manual page 135

15 Reposition the EMI shield (it looks like a brass grill) in the base of the
module. Tape over the front mounting tabs to hold the shield in
position. The tape will be removed later.
16 Slide the new card cage about halfway into the module. Hold the card
cage firmly while the ground and power connections are attached at
the rear of the module:
a. Attach the system monitor ribbon cables (J1 goes down to the
pedestal, J2 goes up the column).
b. Attach the frame ground (green) wire to the frame ground post on
the module. (A 5/16" socket wrench is needed for this operation.)
Remove the nut and the lockwasher at the top of the post. Put the
frame ground connector over the post. Reinstall the top
lockwasher and the nut, then tighten the nut down.
c. Attach the logic ground (orange) wire. Remove one nut and the
lockwasher. Put the connector over the post, reinstall the
lockwasher and nut, then tighten the nut down. (A 3/8" socket
wrench is needed for this operation.)
d. Connect the module power connectors to the MPDU for AC
power, or to each other for DC power.
17 Follow the steps below to install the new card cage in the module:
a. Slide the card cage the remainder of the way into the module.
b. Check the position of the EMI shield. If it has shifted, reposition it.
Remove the tape holding the EMI shield.
c. Secure the card cage to the module with the three screws in the
front and the two screws in the rear.
18 Replace the trim panels on both sides of the card cage.
19 Install the module power supply in the slot labeled "CE pwr sup" in the
Core/Network card cage. Perform a hardware sanity check:
a. Turn on power to the module:
With AC power, set the main circuit breaker to ON (up) in the rear of the
pedestal.
With DC power, set the breaker to ON (up) in the pedestal, then set the switch
to ON (up) on the power supply in the module.
b. Check the LED pattern for the card cage you are installing:
Replacing equipment
Hardware Replacement
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