Nortel Meridian 1 Hardware Replacement Manual page 153

d. Disconnect the large orange power connector (J1) from the PDU.
Note: To disconnect the power plug, you must press a latch trip on the
front and rear of the plug. You may need to use a screwdriver blade
against the latch trip on the front of the plug.
6 Tag and disconnect cables to the NT8D22 System Monitor. Loosen the
two screws on the system monitor card and remove it from the PDU.
7 Remove the six screws that position the PDU. Carefully pull the unit
straight forward and set it on the floor next to the pedestal (see
Figure 11 on page 154).
CAUTION
Damage to Equipment
The PDU cannot be completely removed from the
pedestal until cables to the field wiring terminal
block are disconnected. Label wires carefully.
Improper wiring can cause system damage.
8 Remove the field wiring terminal block:
a. Remove the cover over the field wiring terminal block.
b. Locate the frame ground wire that runs from the field wiring
terminal block to the frame ground bolt inside the pedestal.
Disconnect this wire at the terminal block.
c. Carefully tag and then disconnect all input wiring to the field wiring
terminal block. Take special note of any jumper wires that might
be installed. It is not necessary to disconnect wiring that runs from
the terminal block to the PDU.
9 Remove the four screws that secure the terminal block in place and lift
it out of the pedestal.
Installing equipment
1 Install the replacement field wiring terminal block:
a. Position the replacement PDU next to the rear of the pedestal.
b. Position the replacement field wiring terminal block and replace its
mounting screws.
Replacing equipment
Hardware Replacement
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