38
Installing and Upgrading Internal Modules in Cisco 2800 Series Routers
OL-5792-04
Replacing the Power Supply
Installing a DC-Input Power Supply
The DC-input power supply has two power connectors, as shown in Figure37.
Figure37 DC-Input Power Supply for the Cisco2811 Router
Follow these steps to install the DC-input power supply.
Step1 Insert the DC-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 on the power
supply end snaps into position. See Figure 36.
Step5 Connect the secondary power cable to the power supply and to the secondary power connector on the
motherboard. Make sure that the locking feature on the power supply end snaps into position. See
Figure 38.
1Retention tab 3Secondary power connector
2Primary power connector
135276
1
2
3