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Installing and Upgrading Internal Modules in Cisco 2800 Series Routers
OL-5792-04
Replacing the Power Supply
Installing an AC-Input Power Supply
The AC-input power supply has a single power connector, as shown in Figure35.
Figure35 AC-Input Power Supply for the Cisco2811 Router
Follow these steps to install the AC-input power supply.
Step1 Insert the AC-input power supply, and then slide it to the front and side of the chassis. Please note that
there are two hooks inside the front of the chassis that fit into openings on the side of the power supply.
When you slide the power supply to the front and then the side of the chassis, make sure that these hooks
engage corresponding openings on the side of the power supply.
Step2 Install the power supply retention screw. See Figure 34.
Step3 Insert the air duct. Squeeze it gently at the bottom so that the four snaps on the duct are captured by the
sheet metal retainers in the chassis. See Figure33.
Step4 Connect the primary power cable to the power supply. Make sure that the locking feature snaps into
position. See Figure 36.
1Retention tab 2Primary power connector
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