Specifications

Memory Replacement Instructions for the Network Processing Engine and Input/Output Controller 21
Powering Down the Router and Disconnecting Input Power
8 Removing Boot ROMs, page 36
9 Installing New Boot ROMs, page 39
10 Replacing the Input/Output Controller, page 40
11 Replacing the Network Processing Engine, page 43
12 Reconnecting Input Power and Powering Up the Router, page 45
Note The procedures for removing and replacing the I/O controller and network processing engine
in the Cisco 7200 series routers and in the Cisco AS5800 Universal Access Server router shelf are
the same. Therefore, the illustrations and procedures in the following sections apply to the Cisco
7200 series and the Cisco AS5800 Universal Access Server router shelf unless indicated otherwise.
The tasks for removing and replacing the I/O controller and network processing engine in the
Cisco uBR7200 series routers are slightly different from the platforms mentioned above. The
differences are indicated in the following procedures.
Powering Down the Router and Disconnecting Input Power
Complete the steps in the following sections to power down the router and disconnect input power.
Warning This unit might have more than one power cord. To prevent the risk of electric shock,
disconnect the two power cords before servicing the unit.
Powering Down the Router
To power down a Cisco 7200 series router or a Cisco uBR7200 series router, complete the following
steps:
Note Before powering down the router, use the copy running-config startup-config command to
save the router’s running configuration to nonvolatile memory.
Step 1 Facing the rear of the router, place the power switch on the power supply in the OFF (0)
position. Repeat this action if a second power supply is installed in the router.
Step 2 Observe the following items:
• The green OK LED on the power supply turns off.
• The fans stop operating.
• The LEDs on the I/O controller turn off.
• The LEDs on the port adapters turn off.
• On a Cisco uBR7200 series router, the LEDs on the cable modem cards turn off.
This completes the procedure for powering down a Cisco 7200 series router or Cisco uBR7200
series router.