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Installing and Upgrading Internal Modules in Cisco 2800 Series Routers
This document describes how to install or upgrade modules that are located internally within your
Cisco 2800 series integrated services router, such as memory modules, advanced integration modules
(AIMs), packet voice data modules (PVDMs), and power supplies. You need to remove the cover from
the router to install or remove any of these items. The document contains the following sections:
Safety Warnings, page1
Removing the Chassis Cover, page2
Locating Modules, page 9
Installing and Removing DRAM DIMMs, page12
Installing and Removing AIMs, page16
Installing and Removing PVDMs, page28
Replacing the Power Supply, page31
Installing the Chassis Cover, page51
Before you perform any of these module replacement procedures, disconnect the power and remove the
cover, as described in the “Removing the Chassis Cover” section on page2. After you complete the
module replacement procedures, install the chassis cover as described in the “Installing the Chassis
Cover” section on page51.

Safety Warnings

Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
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
Warning
Only trained and qualified personnel should be allowed to install, replace, or service thisequipment.
Statement 1030