Nortel Meridian 1 Hardware Replacement Manual page 152

Page 152 of 250
553-3001-520 Standard 17.00 January 2002
Replacing equipment
Figure 10
NT7D10 Power Distribution Unit DC
Circuit breaker bank
a. Remove the grill on the front of the pedestal. Set the toggle switch
on the front of the unit to OFF (left).
b. Turn the screws on the front of the unit counterclockwise and pull
the unit forward several inches so the connector on the rear
disengages.
DANGER
Do not pull the blower unit out of the pedestal. The
unit is heavy and the blades on the blower may still
be rotating up to two minutes after the power is
turned off.
5 Disconnect cables that run between the module above the pedestal
(module 0) and the top of the PDU:
a. Remove the rear cover on the module.
b. Remove the I/O safety panel over the backplane in the module.
c. Disconnect the system monitor ribbon cable from the PDU.
System monitor
Ground lugs
PDU
Field wiring terminal
(below PDU)
553-3039