Modules Internal To The Cisco 1841 Router; Opening The Chassis - Cisco 1841 - 3G Bundle Router Hardware Installation Manual

Modules Internal to the Cisco 1841 Router

Hazardous network voltages are present in WAN ports regardless of whether power to the router is
Warning
OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching
cables, detach the end away from the router first. Statement 1026
Modules Internal to the Cisco 1841 Router
This section tells how to install a small outline dual in-line memory module (SODIMM) and an advanced
integration module (AIM) in the Cisco 1841 router. It contains the following subsections:
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All the module replacement procedures in this section require removal of the chassis cover. Before you
perform any of the module replacement procedures, disconnect the power and remove the cover as
described in the
replacement procedures, install the chassis cover as described in the
page

Opening the Chassis

To open the chassis, follow these steps. A number 1 Phillips screw driver is required.
Step 1 Make sure that the router is turned off and is disconnected from AC power.
Step 2 Turn the router upside down, and rest the top of the router on a flat surface.
Step 3 Use the Phillips screwdriver to remove the screw that holds the top and bottom of the chassis together,
as shown in
Cisco 1800 Series Routers (Modular) Hardware Installation Guide
11-2
Chapter 11
Opening the Chassis, page 11-2
Locating Modules, page 11-4
Installing a SODIMM, page 11-5
Installing an AIM, page 11-6
Closing the Chassis, page 11-11
"Opening the Chassis" section on page
11-11.
Figure 11-1.
Installing and Upgrading Internal Modules in Cisco 1800 Series Routers (Modular)
11-2. After you complete the module
"Closing the Chassis" section on
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