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Installing and Upgrading Internal Modules in Cisco 2800 Series Routers
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Replacing the Power Supply
Figure 32 Inserting the ILP Supply into the Cisco 2801 Router
Step 6
Insert the screws that fasten the ILP supply to the chassis.
Step 7 Connect the main power supply cable to the main power supply connector, and connect the ILP supply
cable to the ILP supply connector.
Step 8 Verify that the vent blocking plate has been removed in Step 4. The ILP fans should be visible through
the vents that were blocked by the vent blocking plate.
Installing a Power Supply in a Cisco 2811 Router
Three types of power supplies are available for the Cisco 2811 router:
• An AC-input power supply, driven by external AC power
• A DC-input power supply, driven by external DC power
• An inline power (ILP) supply, driven by external AC power. This supply provides power for the
router and inline power for a complement of IP phones attached to the router.
The following sections describe how to install each type of power supply.
• Removing the Existing Power Supply, page 34
• Installing an AC-Input Power Supply, page 36
• Installing a DC-Input Power Supply, page 38
• Installing an ILP Supply, page 40
1 ILP supply fastening screws 3 ILP connector
2 ILP supply 4 Main power connector
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