Chapter 4 Installation and Maintenance
Removing and Replacing a Power Supply Unit
Cisco SCE 2000 4xGBE Installation and Configuration Guide
OL-7824-04 4-15
ESD Warning Do not remove or install modules without using appropriate anti-static guard measures. The SCE 2000
includes an anti-static wrist strap in the accessory kit. Attach the copper tape strap to an unpainted metal
surface on the chassis. You may leave the strap connected to the chassis when your have finished.
Warning Never install an AC power module and a DC power module in the same chassis.
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 a power supply unit (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).