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Installing and Upgrading Internal Modules in Cisco 2800 Series Routers
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Installing and Removing AIMs
Step7 Check that the AIM is installed correctly on the system board. See Figure21.
Figure21 Correctly Installed AIM
Step8 If you are finished installing modules, install the cover on the router. See the “Installing the Chassis
Cover” section on page51.
Step9 Apply the AIM label to the outside of the chassis as described in the “Applying the AIM Label” section
on page 26.
Installing an AIM in a Cisco 2811, Cisco 2821, or Cisco 2851 Router
Cisco 2811, Cisco 2821, and Cisco 2851 routers have two AIM connectors—AIM slot 0 and AIM slot1.
You can install a virtual private network (VPN) encryption AIM or a voice-mail AIM in either slot, but
not in both slots. You can install voice and data compression AIMs and ATM AIMs in both slots.

Accessory Kit to Use

To install AIM modules in Cisco 2811, Cisco 2821, or Cisco 2851 routers, use accessory kit number
69-0926-01.

Installation Procedure

To install an AIM in a Cisco 2811, Cisco 2821, or Cisco 2851 router, follow these steps.
Note If the mounting hardware is already in place on the system board, or if you are replacing an existing AIM,
skip Step 2 through Step 4.
Step1 Locate the AIM connector.
Step2 Remove the three screws from the system board near the AIM connector that you are going to use.
(Figure 22 shows the screws to remove for AIM installation in AIM slot 1.)
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