14
Removing and Replacing an AC-Input Power Supply
To power up a Cisco 7200 series router that has an installed AC-input power supply, complete the
following steps:
Step 1 Check for the following:
• Each port adapter is inserted in its slot and its respective port adapter lever is in the
locked position
• The network processing engine and the I/O controller are inserted in their respective
slots, and their captive installation screws are tightened
• All network interface cables are connected to the port adapters
• A Flash memory card is installed in its PCMCIA slot (if present)
• Each power cable is connected and secured with the cable-retention clip
• The console terminal is turned on
Step 2 At the rear of the router, place the power switch on the power supply in the ON (|)
position. Repeat this step if a second power supply is installed in the router. The green
OK LED on the power supply turns on.
Step 3 Listen for the fans; you should immediately hear them operating.
Step 4 During the boot process, observe the system’s LEDs. The LEDs on most of the port
adapters go on and off in irregular sequence. Some may go on, go out, and go on again
for a short time. On the I/O controller, the IO Power OK LED comes on immediately.
Step 5 Observe the initialization process. When the system boot is complete (a few seconds), the
network processing engine begins to initialize the port adapters and the I/O controller.
During this initialization, the LEDs on each port adapter behave differently (most flash
on and off). The enabled LED on each port adapter goes on when initialization is
completed, and the console screen displays a script and system banner similar to the
following:
Cisco Internetwork Operating System Software
IOS (tm) 7200 Software (C7200-J-M), Version 11.1(472) [kpfjrgiu 100]
Copyright (c) 1986-1996 by cisco Systems, Inc.
Compiled Sun 21-Apr-96 04:10 by
This completes the procedures for reconnecting input power and powering up the router. This also
completes the procedure for replacing the AC-input power supply in a single Cisco 7200 series
power supply configuration.
Dual Power Supply Configuration
Removing and replacing an AC-input power supply in a dual power supply configuration involves
the following tasks:
1 Turning Off the Power Supply and Disconnecting AC Input Power
2 Removing the AC-Input Power Supply
3 Installing the AC-Input Power Supply and Connecting AC-Input Power
4 Reconnecting Input Power and Turning On the Power Supply
These tasks are described in detail in the following subsections.
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