Single Power Supply Configuration - Cisco 7200 Series Replacement Instructions Manual

Use the following guidelines to ensure easy access to the rear of the router when it is installed in a
rack:
•
Ensure that you have at least three to four feet of working space at the rear of the router.
•
If cables from other equipment in the rack fall in front of the rear end of the router, carefully
gather the cables (using care not to strain them) and use cable ties to anchor them away from the
rear of the router.
•
If access to the rear of the router is partially blocked by a power strip or some other permanent
rack fixture, detach the router from the rack and carefully slide it forward until there is enough
clearance to remove the power supply, the network processing engine, and the subchassis from
the router. Detailed steps for detaching the router from the rack are contained in the following
section "Removing and Replacing an AC-Input Power Supply."
Caution
you slide it out from the rack and, if necessary, to continue to support it while you remove and insert
the power supply, network processing engine, or subchassis.
Removing and Replacing an AC-Input Power Supply
The following sections explain how to remove and replace an AC-input power supply in a
Cisco 7200 series router.
Single Power Supply Configuration
Removing and replacing the AC-input power supply in a single power supply configuration involves
the following tasks:
Powering Down the Router and Disconnecting AC-Input Power
1
2 Removing the AC-Input Power Supply
3 Installing the AC-Input Power Supply and Connecting AC-Input Power
4 Reconnecting Input Power and Powering Up the Router
These tasks are described in detail in the following subsections.
Note
Cisco 7206 power supply configuration are the same. Therefore, the illustrations in the following
sections show the Cisco 7206, unless indicated otherwise.
Make sure that at least one other person is available to support the front of the router as
The tasks for removing and replacing an AC-input power supply in a single Cisco 7204 or
Removing and Replacing an AC-Input Power Supply
9