Removing And Replacing The Ac Power Supply - Cisco ASR 903 Hardware Installation Manual

Installing the Cisco ASR 903 Router
• 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 the AC Power Supply

This section describes how to remove and replace the AC power supply.
The Cisco ASR 903 Router power supplies are hot-swappable. If you have installed redundant power
Note
supply modules, you can replace a single power supply without interrupting power to the router.
Caution To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power
supply has been removed or replaced.
Warning When you install the unit, the ground connection must always be made first and disconnected last. Statement
1046
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning Installation of the equipment must comply with local and national electrical codes. Statement 1074
Troubleshooting for troubleshooting information.
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
Removing and Replacing the AC Power Supply
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