Cisco Systems Cisco CRS-1 manual Installing a Power Supply

Chapter 2 Installing and Removing Power Components

Installing a Power Supply

Steps

To remove an AC power shelf, follow these steps:

Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.

Step 2 Remove all four power supplies from the shelf you are removing. (See the “Removing a Power Supply” section on page 2-28.)

Step 3 Remove the power cables from the power from the four power inlets.

Step 4 While facing the rear (SFC) side of the chassis, use the screwdriver to loosen the two captive screws that connect the rear of the chassis to the power shelf by turning them counterclockwise.

Step 5 Pull the lever handles down with both hands and slide the AC power shelf partway from the slot in the chassis.

Caution An empty AC power shelf weighs approximately 7.0 lb (3.2 kg). To prevent injury when lifting the shelf, keep your back straight and lift with your legs, not your back. Avoid sudden twists or lateral moves.

Step 6 Placing one hand underneath the AC power shelf and pulling on it and steadying it with the other hand, slide the shelf completely from the chassis. (If attached, be sure to thread the power cable through the chassis carefully.)

Step 7 Set the AC power shelf carefully aside.

What to Do Next

After performing this task, you may install a replacement power shelf (see the “Installing an AC Power Shelf” section on page 2-22), install the power supplies (see the “Installing a Power Supply” section on page 2-25), and replace any front chassis cosmetic covers.

Installing a Power Supply

This section describes how to install an AC or DC power supply in the Cisco CRS-1 4-slot power shelf. The AC power supply converts facility AC power into the DC power necessary to power the cards and modules in the chassis. Each AC and DC power supply has its own pair of cooling fans, which draws air through the power supply.

For complete information on regulatory compliance and safety, see Cisco CRS-1 Carrier Routing System Regulatory Compliance and Safety Information.

	Cisco CRS-1 Carrier Routing System 4-Slot Line Card Chassis Installation Guide
OL-10971-07		2-25