Specifications

58 Memory Replacement Instructions for the Network Processing Engine and Input/Output Controller
Removing and Replacing an AC-Input or DC-Input Power Supply
Step 5 Use the following series of commands to designate the file new.image (which is on the
Flash memory card in slot 0) as the default boot image and reboot the router:
Router# config t
Router(config)# no boot system
Router(config)# boot system flash slot0:new.image
Router(config)# ^z
Router# copy running-config startup-config
Router# reload
When the system reloads, it will boot the file new.image from the Flash memory card in slot 0.
Removing and Replacing an AC-Input or DC-Input Power Supply
The weight of power supplies installed in a Cisco 7200 series router might make it difficult for you
to pull the network processing engine from its chassis slot. If this is the case, consider removing
installed power supplies from the chassis and then removing the network processing engine.
The following sections explain how to remove and replace an AC-input or a DC-input power supply
in a Cisco 7200 series router.
Note The network processing engine is installed above the power supplies in a Cisco uBR7200
series router. You do not need to remove the power supplies from a Cisco uBR7200 series router to
pull the network processing engine from its chassis slot.
Caution Do not mix AC- and DC-input power supplies in the same router.
Removing a Power Supply
The steps for removing an AC-input and DC-input power supply from a Cisco 7200 series router are
the same. The two power supplies share the same dimensions and faceplates, except for the AC-input
receptacle on the AC-input power supply and the DC-input lead receptacles on the DC-input power
supply.
To remove an AC-input or DC-input power supply from a Cisco 7200 series router, complete the
following steps:
Step 1 Ensure that the power switch on the power supply is in the OFF (0) position and input
power is disconnected from the power supply and its power source. (Refer to the
“Powering Down the Router and Disconnecting Input Power” section on page 21.)
Step 2 Using a number 2 Phillips or a 3/16-inch, flat-blade screwdriver, loosen the two captive
screws on the faceplate of the power supply. (See Figure 44.)
If the router is not installed in a standard 19-inch, 4-post or telco rack, skip to Step 6. If
the router is installed in a rack, determine if any permanent rack fixtures, such as a power
strip, are obstructing access to the power supply. If a rack fixture is obstructing access to
the power supply, proceed to Step 3.