Cisco PWR-CSS8-850-AC Reference

AC Power Supply Reference
Product Number: PWR-CSS8-850-AC= (AC Power Supply)
This reference contains the following information on CSS 11800 AC power supplies:
• Redundant Power Supplies
• Installing a Power Supply
• Connecting an AC Power Cord
• Removing a Power Supply
Redundant Power Supplies
The CSS 11800 enables you to install a redundant power supply to ensure maximum uptime. This illustration shows two
AC power supplies installed in the CSS 11800. The CSS 11800 design requires one power supply for operation. Installing a
second power supply provides redundancy. A redundant power supply is active upon installation and powerup, and
provides load-sharing capabilities. You may install a redundant power supply in the chassis without powering down the
CSS.
If you do not power down the CSS, an electrical energy hazard is present within the chassis. Prior to
installing or removing components, remove all metallic objects from hands and wrists to prevent bridging of
live contact points.
Installing a Power Supply
To install a power supply:
1. If necessary, remove the blank panel from the power supply bay.
2. Align the power supply in the slot and slide it carefully into the chassis.
3. Use a flat-head screwdriver to tighten the two captive panel fasteners that secure the power supply to the chassis.
Document Number: 78-11505-01
Warning
May 2002