Nortel Meridian 1 Replacement Manual page 193

4 Tag and disconnect wiring to the LRTN, GND, L2, and L1 connections
on the right side of the field wiring terminal (see Figure 31). Push all the
wires down into the empty area under the pedestal.
Label wires carefully. They must be reconnected correctly or the
system may be damaged.
Figure 31
Connections at the field wiring terminal
J3
5 Tag and disconnect cables to the NT8D22 System Monitor. Loosen the
two retaining screws on the system monitor. Remove the card.
6 Disconnect cables to the module above the pedestal (module 0):
a Remove the rear cover on the module.
b Remove the I/O safety panel over the backplane in the module.
c Disconnect the power plug (J1) and system monitor ribbon cable to
the module.
Replacing equipment
CAUTION
J5
J6 J4
PDU
Page 193 of 362
LRTN
GND
L2
L1
To LRE
553-3086
Hardware replacement