Cisco 7513 Series Replacement Instructions Manual page 8

Replacing the Chassis
Replacing a Rack-Mounted Chassis
This section describes how to replace a chassis that is installed in an equipment rack. The order in
which you remove the existing system, install the new chassis, and replace the components will vary
depending upon the space available in the rack and in the work area.
Some rack configurations, such as an enclosed rack or a rack with a power strip that limits access,
prohibit the normal installation sequence of first installing the chassis in the rack and then installing
the cable-management brackets before installing the processor modules. In these situations, you can
move all the components into the new chassis before installing it in the rack, but ensure that you
follow the safety guidelines for lifting and working with electrical equipment that are provided in
the section "Safety Guidelines" beginning on page 3.
If there is sufficient space available in the same rack (or an adjacent rack) and you have a rack-mount
kit available, you can install the new (replacement) chassis before you remove the existing system.
You can minimize downtime and avoid having to disconnect network interface cables by leaving the
existing system operating while you install the empty replacement chassis in the rack. Also, an
empty chassis is significantly lighter and easier to handle than one that is fully configured. Just
ensure that both chassis, when installed, will be close enough to avoid straining the interface cables
connected to the interface processors.
If you must remove the existing system to make room for the replacement chassis, or if you need the
existing rack-mounting hardware to mount the new chassis, you will have to disconnect all network
interface cables before removing the existing system from the rack. You can leave the system
components in the old chassis until after you install the new, empty chassis in the rack.
Assess your rack and lab configuration and the equipment you have available, then choose the
appropriate replacement procedure from the following:
•
•
8 Cisco 7513 Chassis Replacement Instructions
If you have a spare rack-mount kit available and are able to install the new, empty chassis before
you shut down and remove the existing one, follow the installation instructions provided with the
rack mount kit, Cisco 7513 Rack-Mount Kit Installation Instructions (Document Number
78-2023-xx). After you install the new chassis in the rack and install the cable-management
brackets, proceed to the section "Moving Processor Modules from the Old Chassis to the New
Chassis," on page 13, to move the components. (After you complete the replacement and check
the installation, you will be directed to the following section, "Removing the Existing Chassis
from the Rack," to remove the empty chassis.)
If you must remove the existing chassis before you can install the new one, proceed to the
following section, "Removing the Existing Chassis from the Rack."