Nortel Meridian 1 Hardware Replacement Manual page 235

Replacing an NT7D10 PDU with an NT7D67CB PDU
4 Set all five circuit breakers on the PDU to OFF (down). Figure 40 on
page 235 shows the NT7D10 PDU in the rear of the pedestal.
Figure 40
NT7D10 Power Distribution Unit DC
Circuit breaker bank
5 Unseat the blower unit in the front of the pedestal:
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 out several inches so the connector on the rear
disengages.
DANGER
The unit is heavy and the blades on the blower may
still be rotating up to two minutes after the power is
turned off.
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.
System monitor
PDU
Ground lugs
Page 235 of 250
Field wiring terminal
(below PDU)
Hardware Replacement
553-3039