Nortel Meridian 1 Replacement Manual page 147

Figure 11
NT7D10 Power Distribution Unit DC
Circuit breaker bank
— Turn the screws on the front of the unit counterclockwise and pull
the unit forward several inches so the connector on the rear
disengages.
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 2 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.
d Disconnect the large orange power connector (J1) from the PDU.
Replacing equipment
System monitor
Ground lugs
WARNING
Page 147 of 362
PDU
Field wiring terminal
(below PDU)
Hardware replacement
553-3039