Nortel-networks CALLPILOT 555-7101-217 Manual de usuario descargar pdf (Pagina 50)

Power supply installation Standard 1.0

50 CallPilot

Bringing power and ground into the PDU

Introduction

Install BAT/BATRTN wires in pairs. Each pair of wires supplies voltages to

a module through a power harness. The module harnesses are installed in the

cabinet PDU and connected to the modules at the factory.

See “About the Power Distribution Unit” on page 48 for a PDU wiring

diagram and description.

To bring DC power and ground into the PDU

1 If you are using a conduit, terminate the 1-1/4 or 3/4 conduit at the top

rear of the cabinet or at the bottom front of the cabinet using the

knockouts provided.

The number of wire pairs you can run in each conduit depends on the

wire gauge.

Note: To preserve ground integrity, the conduit must be insulated.

2 Select a power feed with a circuit breaker dedicated to each module, and

identify it with an appropriate tag.

3 Select a wire size to suit the required feed length from the power source

(see “DC wire gauge tables” on page 44).

4 Use pliers to strip one-quarter to one-half of the insulation from one end

of all power and ground feed wires.

5 Undo the terminal block screws at (-) positions 0, 1, 2, and 3.

6 Insert the red wires into terminal block positions 0, 1, 2, and 3.

7 Secure the wires in the terminal block by tightening the screws.

8 Undo the terminal block screws at (+) positions 0, 1, 2, and 3.

9 Insert the black wires into terminal block positions 0, 1, 2, and 3.

10 Secure the wires in the terminal block by tightening the screws.

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Nortel-networks CALLPILOT 555-7101-217 Manual de usuario Pagina 50