Nortel Meridian 1 Replacement Manual page 350

Page 350 of 362
553-3001-520 Standard 16.00 April 2000
Replacing an NT7D10 PDU with an NT7D67CB PDU
11 Reseat the blower unit:
a Lift the unit slightly and slide it into the pedestal glides. Set the
toggle switch to ON (right).
b Tighten the screws on the front of the unit.
c Replace the front pedestal grill.
12 Insert the system monitor card. Tighten the screws on the card faceplate.
Reconnect cables to the system monitor.
13 Set all five circuit breakers on the PDU to OFF (down). Reconnect the
source of DC power.
14 One at a time, starting with the breaker for the blower unit, set the circuit
breakers on the PDU to ON (up). Make sure the green LED lights on the
power supply unit(s) in each module.
Note: On initial power up the blower may rotate slower than expected.
As the sensor detects heat, the blower will rotate more rapidly.
15 Replace the rear pedestal grill.
16 Tag defective equipment with a description of the problem and package
it for return to a repair center.