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Cisco 2811 Series インストールとアップグレード
Installing and Upgrading Fans in Cisco 2811

Series Routers

This document describes how to install or upgrade fans that are located internally within a Cisco 2811
series integrated services router. You need to remove the cover from the router to install or remove any
of these items. The document contains the following sections:
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Before you begin the fan replacement procedure, disconnect the power and remove the cover, as
described in the
replacement procedure, install the chassis cover as described in the
section on page

Safety Warnings

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
Warning
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1030
Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.
Warning
Statement 1
Corporate Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
© 2006 Cisco Systems, Inc. All rights reserved.
"Removing the Chassis Cover" section on page
13.
2. After you complete the fan
"Installing the Chassis Cover"