Cisco Systems SCE 2000 4/8xFE Powering Down the Power Supply Unit and Disconnecting Input Power

Chapter 4 Installation and Maintenance

Removing and Replacing a Power Supply Unit

Warning Never install an AC power module and a DC power module in the same chassis.

Powering Down the Power Supply Unit and Disconnecting Input Power

The following sections describe how to remove power from an AC-input power supply and a DC- input power supply:

•Powering Down an AC-Input Power Supply (on page 4-15)

•Powering Down a DC-Input Power Supply Unit and Removing the DC-Input Leads (on page 4-16)

Powering Down an AC-Input Power Supply

To power down an AC-input power supply to the SCE 2000 platform, complete the following steps:

Warning Make sure that the power supply unit is switched off before replacing it (NO hot-swap).

Note that one AC-input power supply can be running when the other power supply is being removed or replaced.

Step 1 Place the on/off switch on the AC-input power supply in the OFF ({) position.

Step 2 Observe that the corresponding Power LED on the front panel turns off.

Step 3 Remove the cable from the AC-input power receptacle

This completes the procedure for powering down an AC-input power supply unit on a SCE 2000 platform. Proceed to Removing the Power Supply Unit (on page 4-16).

Cisco SCE 2000 4/8xFE Installation and Configuration Guide

OL-7826-05 4-15