Removing And Replacing An Ac Power Supply - Cisco ASR 902 Installation Manual

Installing the Cisco ASR 902 Router
Activating an AC Power Supply
Follow these steps to activate an AC power supply:
Step 1
Plug the power cord into the power supply.
Step 2 Connect the other end of the power cord to an AC-input power source.
Step 3 Verify power supply operation by checking that the power supply LEDs are in the following states:
• INPUT OK LED is green
• OUTPUT FAIL LED is green
Step 4 If the LEDs indicate a power problem, see
Step 5
If you are installing a redundant power supply, repeat these steps for the second power source.
If you are installing a redundant AC power supply, ensure that each power supply is connected to a separate
Note
power source in order to prevent power loss in the event of a power failure.

Removing and Replacing an AC Power Supply

This section describes how to remove and replace an AC power supply.
The Cisco ASR 902 Router power supplies are hot-swappable. If you have installed redundant power
Note
supplies, you can replace a single power supply without interrupting power to the router.
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power
Caution
supply has been removed or replaced.
When you install the unit, the ground connection must always be made first and disconnected last. Statement
Warning
1046
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Warning
Statement 1003
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1030
Troubleshooting for troubleshooting information.
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
Removing and Replacing an AC Power Supply
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