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

Installing the Power Supply

Activating the AC Power Supply

Follow these steps to activate the AC power supply:
Step 1 Plug the power cord into the power supply.
Connect the other end of the power cord to an AC-input power source.
Step 2
Verify power supply operation by checking that the power supply LEDs are in the following states:
Step 3
•
•
If the LEDs indicate a power problem, see the
Step 4
information.
If you are installing a redundant power supply, repeat these steps for the second power source.
Step 5
Note If you are installing a redundant AC power supply, ensure that each power supply is connected to a
separate 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
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning
Follow these steps to remove and replace the AC power supply:
Cisco ASR 903 Router Hardware Installation Guide
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INPUT OK LED is green
OUTPUT FAIL LED is green
Chapter 3
Chapter 5, "Troubleshooting"for troubleshooting
Installing the Cisco ASR 903 Router
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