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Installing and Upgrading Internal Modules in Cisco 2800 Series Routers
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Replacing the Power Supply
Step1 Insert the AC-input power supply into the chassis from the front.
Step2 Install the two power supply retaining screws. Torque to 8 to10 in-lbf (0.9 to 1.1 N-m). See Figure43.
Step3 Connect the primary power supply cable to the power supply. Make sure that the locking feature on the
power supply end snaps into position. See Figure 46.
Figure46 Primary Power Cable Connection in a Cisco 2821 or Cisco 2851 Router
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Step4 Install the bezel onto the front of the chassis as follows:
a. Engage the plastic tabs of the bezel into the slots in the chassis.
b. Slide the bezel until it is centered and tight against the chassis.
Step5 If you are finished installing modules, install the cover on the router. See the “Installing the Chassis
Cover” section on page51.
1Power supply 2Primary power cable connector
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