Cisco Systems OL-6256-17 manual Installing DC PDU Cables

Chapter 2 Installing and Removing Power Components

How to Install or Remove Fixed Configuration Power Components

Installing DC PDU Cables

This section describes how to wire the fixed configuration DC PDU. For more detailed information on chassis DC power systems, see the “DC Power Systems” section on page 2-6.

Figure 2-11shows the power cable connections at the rear of the fixed configuration DC PDU.

Figure 2-11 Fixed Configuration DC PDU Power Cable Connections

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Each set of cables (RTN and –48 V/–60V) is a single VDC input.

Caution When wiring the PDU, be sure to attach the ground cable first and tighten the nuts to a torque of 30 in-lb (3.39 N-m). When removing the wiring, be sure to remove the ground cable last.

Prerequisites

Before performing this task, ensure that both power shelves are installed in the chassis.

Note Before installing wiring on the power shelf, make sure that the input power cables are not energized.

Note If cables are wrapped with black electrical tape, be sure to remove tape from cables before installing cabling on the power shelf.

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