Nortel Meridian 1 Hardware Replacement Manual page 160

Page 160 of 250
553-3001-520 Standard 17.00 January 2002
Replacing equipment
The safety ground/protective earth wires and all wiring to the block in the PDU
must be neatly routed within the cable-tie saddles and under the cable
restraint bar at the base of the pedestal. This ensures that there is room to
install the PDU cover, safety cover, and rear grill.
c. Connect the black BATRTN (48 V return) wires to the terminal
block:
— for modules 0 and 1 connect to the BATRTN 0,1 terminal
— for modules 2 and 3 connect to the BATRTN 2,3 terminal
d. Connect the orange (or white) wire to the LRTN terminal.
6 Reinstall the plastic safety cover over the terminal block.
7 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.
8 Reconnect cables to the system monitor faceplate.
9 Set all five circuit breakers on the PDU to OFF (down). Reconnect the
source of DC power.
10 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.
11 Replace the pedestal grills in the front and rear.
12 Tag defective equipment with a description of the problem and
package it for return to a repair center.