User's Manual

103
Installing and Upgrading Internal Components in Cisco 3800 Series Routers
OL-5975-04
Installing a Power Supply in a Cisco 3825 Router
Installing an IP Phone Power Supply
The IP phone power supply has three connectors, as shown in Figure 72.
Figure 72 AC Power Supply With IP Phone Power Support
Follow these steps to attach the power supply to the power supply tray.
Step 1 Turn the tray right side up. Align the new power supply with the front wall of the tray.
Step 2 Replace and tighten the screws that hold the power supply to the tray.
Verify that the primary power cable is connected to the motherboard as shown in Figure 69.
Make sure that the secondary power cable is connected to the motherboard as shown in Figure 71.
Install the IP phone power cable as shown in Figure 73. Make sure that the cable is held in place by the
three cable brackets, as shown in the illustration.
1 Primary power connector 3 IP phone power connector
2 Secondary power connector
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