Nortel Meridian 1 Hardware Replacement Manual page 35

13 From the front of the module, carefully slide the MMDU the remainder
of the way into its slot.
14 Use a slotted or Phillips screwdriver to secure the screws on the top
and bottom center of the MMDU.
15 Replace the card cage:
a. Check that the power harness at the right rear corner of the card
cage is attached card cage
b. Slide the CP PII card cage halfway into the module.
16 Reconnect the card cage cables.
Hold the card cage firmly and make the following connections at the
rear of the module.
a. In AC powered systems, connect the remaining module power
connectors to J2 on the MPDU.
In DC powered systems, connect the module power connectors to
each other.
b. Attach the system monitor ribbon cables:
• Connect the ribbon cable that goes down to the pedestal to
connector J1 on the backplane.
• Connect the ribbon cable that goes up the column to J2 on the
backplane.
c. Attach the green ground wire to the frame ground bolt on the
module. Use a 11/32" socket wrench to attach the wire. Remove
the nut and the lock washer at the top of the bolt. Put the frame
ground wire terminal over the bolt. Reinstall the top lock washer
and the nut, then tighten down the nut.
d. Attach the orange logic return wire. Remove one nut and the lock
washer from the LRTN blot at the rear of the card cage. Put the
wire terminal over the bolt, reinstall the lock washer and nut, then
tighten down the nut. Use a 1/4" or 2/8" socket wrench.
17 Slide the card cage all the way into the module.
18 Check the position of the EMI shield. If the EMI shield has shifted,
reposition it. Remove the tape holding the EMI shield.
19 Pre-route cables NT4N88AA, NT4N88BA and NT4N90AA before you
secure the card cage.
Replacing equipment
Hardware Replacement
Page 35 of 250