Disconnecting Ac Or Dc Power; Disconnecting Ac Power; Reconnecting Ac Power - Cisco NCS 4016 Installation Manual

Disconnecting AC or DC Power

Proceed to the
Step 7
Disconnecting AC or DC Power
The following sections explain how to disconnect AC or DC power to the Cisco NCS 4016 chassis.

Disconnecting AC Power

Follow these steps to disconnect an individual AC power cord:
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.
Unplug the AC power cord from the power tray receptacle.
Step 3
Caution 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.
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
Caution
Chapter 6, "Removing and Replacing Chassis
Set the power switch at the rear of the AC power tray to the OFF (0) position.
Step 1
Power off (0) the circuit breakers assigned to the AC power sources that you are disconnecting.
Step 2
To ensure that power remains off while you are performing this procedure, lock-out/tag-out the circuit
Warning
breaker switch in the OFF (0) position until you are ready to turn it on.
Loosen the retainer bracket that holds the AC power cords to the power tray receptacle.
Step 3
Unplug the AC power cords from the power tray receptacles.
Step 4

Reconnecting AC Power

To reconnect an individual AC power cord to a power tray, see
Chassis, page 4-23
Cisco Network Convergence System 4000 Series Hardware Installation Guide
4-28
"Powering On the Chassis" section on page
Chapter 4
4-30.
Components.".
Connecting Power to an AC-Powered
Installing Power Components