Disconnecting Ac Or Dc Power; Disconnecting Ac Power - Cisco NCS 4000 Series Hardware Installation

Installing Power Components
Step 7 Proceed to the

Disconnecting AC or DC Power

The following sections explain how to disconnect AC or DC power to the Cisco NCS 4009 chassis.

Disconnecting AC Power

Follow these steps to disconnect an individual AC power cord:
Procedure
Step 1 Power off (0) the circuit breaker assigned to the AC power source that you are disconnecting.
Step 2
Un-tighten the screw that clamps the AC power cord.
Step 3 Unplug the AC power cord from the power tray receptacle.
Caution
Disconnecting AC Power
If it becomes necessary to disconnect all AC power from the chassis, follow these steps:
Do not disconnect all power from the chassis to replace components, including power modules. See
and Replacing Chassis Components, on page
Powering On the Chassis, on page
Do not turn off the switch on the power tray to remove AC power cords. An individual AC power
cord can be unplugged while the system is powered from other AC power sources.
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Hardware Installation Guide for Cisco NCS 4000 Series

Disconnecting AC or DC Power

Removing
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