Nortel Meridian 1 Hardware Replacement Manual page 36

Page 36 of 250 Replacing equipment
553-3001-520 Standard 17.00 January 2002
a. Route cable NT4N88AA from COM1 on the CP PII faceplate to
J25 on the I/O panel. (NT4N88AA is used to connect a terminal.)
b. Route cable NT4N88BA from COM2 on the CP PII faceplate to
J21 on the I/O panel. (NT4N88BA is used to connect a modem.
c. Route cable NT4N90AA from LAN 1 on the CP PII faceplate to
J31 (top) of the I/O panel
d. Secure the card cage to the module with the three short screws in
the front and the two long screws in the rear.
Note: You need a minimum 12" long, 3/8" hex head nut driver for the
two screws in the rear of the card cage.
20 Replace the trim panels on both sides of the card cage.
21 Install the screws at the back of the card cage.
22 Reconnect the LAN 1, COM1 and COM2 cables.
23 Reconnect cables, plugs, and wires to the backplane:
a. Reconnect all plugs, wires, and cables to the backplane. Cables
include 3PE to cCNI Transition cables; D and E intermodule cable;
and the intermodule power harness.
b. Position the I/O safety panel. Tighten the screws.
Procedure 3:
Replace the NT4N43BA cPCI Multi-Media Disk Unit (MMDU)
1 Make sure the CPU is idle.
2 Issue the split command.
3 Unscrew the screws that hold the MMDU in place.
4 Carefully slide the MMDU until just out of the shelf, turn the front of the
MMDU to the left while supporting it with a hand.
5 At the rear of the MMDU remove the 3 cables in the following order:
a. Disconnect the NT4N95BA power cable.
b. Disconnect the NT4N93BA cable from the floppy.
c. Disconnect the NT4N92BA from the CD and HD.