Cisco Systems OL-6256-17 manual Screws that secure power shelf to chassis

Chapter 2 Installing and Removing Power Components

How to Install or Remove Modular Configuration Power Components

Step 6 Remove the ESD-preventive wrist strap from the rear (MSC) side of the chassis. Go to the front of the chassis and reattach to one of the ESD connection sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.

Step 7 Remove the screws, two per shelf, that secure the power shelf to the chassis. Carefully remove the power shelf. See Figure 2-40.

Figure 2-40 Removing Screws that Secure Shelf to Chassis

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Screws that secure power shelf to chassis.

What to Do Next

After performing this task, replace any front (PLIM) side cosmetic covers.

Power Up and Power Down a Chassis with a Modular Configuration AC or DC Power Shelf

This section describes how to power up and power down a chassis with a modular configuration AC or DC power shelf. For details on the chassis power systems, see the “Basic Chassis Power Details” section on page 2-2, the “DC Power Systems” section on page 2-6, and the “AC Power Systems” section on page 2-11.

Most components on the chassis, such as the PMs and fan trays, can be removed or installed in the chassis while it is running. Although it is possible to install or remove a power shelf while the chassis is running, it is recommended to remove power from the chassis completely, if possible, for service protection and safety.

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide

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