Removing And Replacing A Power Supply Unit; Information About The Power Supply - Cisco SCE 1000 Installation And Configuration Manual

Chapter 4 Installation and Maintenance

Removing and Replacing a Power Supply Unit

The procedures for removing and replacing the AC-input or DC-input power supply are explained in the
following sections:
Do not remove or install modules without using appropriate anti-static guard measures. The SCE 1000
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.
Never install an AC power module and a DC power module in the same chassis.
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Information About the Power Supply

The SCE 1000 is available in two power options:
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The dual power supply units supply hot-swappable, redundant power. Redundant power is useful as a
failover; if a situation occurs where one power supply is down (for instance, a power supply fails or a
new power supply needs to be installed), the SCE 1000 can continue to run properly using the other
power supply.
Each power supply has fans that cool the power supply unit. These fans also help to cool the internal
components of the SCE 1000, as they direct the air flow to the outside through vents in the rear of the
power supply unit.
The faceplates of both power supplies have a handle, an on/off switch, and one captive installation screw.
An AC-input power receptacle is available on the AC-input power supply and a DC-input terminal block
is available on the DC-input power supply.
Note that the power supply units are asymmetrical, with a screw in only one corner of the unit. Therefore,
both power supply units can be fastened only if both units are inserted in the proper orientation. This
also prevents the accidental installation of one DC unit and one AC unit. (Refer to
Figure
Figure 4-14
1
OL-26790-01
Information About the Power Supply, page 4-15
Powering Down the Power Supply Unit and Disconnecting Input Power, page 4-18
How to Remove the Power Supply Unit, page 4-19
Dual line feed AC power — SCE 1000 is shipped with two appropriate AC power supply cords.
Dual line feed DC power — requires appropriate cables (hex or loop connectors) (see
Reconnect DC-Input Power Supply Unit, page
4-15).
AC Power Supply Unit
2 3 4 5

Removing and Replacing a Power Supply Unit

4-22).
Cisco SCE 1000 2xGBE Installation and Configuration Guide
How to
Figure 4-14 or
4-15