5-5
Cisco7609 Internet Router Installation Guide
OL-5079-04
Chapter5 Removal and Replacement Proc edures
Removing and Replacing the Power Supply
Installing an AC-Input Power Supply
Caution Use both hands to install and remove power supplies. Each Cisco 7609
Internet Router AC-input power supply weighs between 22 pounds (9.9 kg)
and 28 pounds (12.6 kg).
Follow these steps to install an AC-input power supply:
Step 1 Ensure that the system (earth) ground connection has been made. For ground
connection instructions, see the “System Ground Connection” section on
page 3-12.
Step 2 If necessary, remove the blank power supply filler plate (Cisco part number
700-03104-01) from the chassis power supply bay opening by loosening the
captive installation screw.
Step 3 Verify that the power switch is in the Off (0) position on the power supply you are
installing. (SeeFigure 5-1.)
Step 4 Grasp the power supply handle with one hand. Place your other hand underneath
the power supply, as shown in Figure5-2. Slide the power supply into the power
supply bay. Make sure that the power supply is fully seated in the bay.
Step 5 Tighten the power supply captive installation screw. (See Figure 5-1.)
Step 6 Plug the power cord into the power supply and tighten the screw on the cable
retention device.
Note The AC power cord for the 4000W power supply is hard wired and
cannot be removed from the supply.
Step 7 Connect the other end of the power cord to an AC-input power source.
Caution In a system with dual power supplies, connect each power supply to a separate
input source. In case of a power source failure, the second source will most
likely still be available.