Cisco ASR 903 Hardware Installation Guide

•
OUTPUT FAIL LED is green
Step 4
If the LEDs indicate a power problem, see Troubleshooting for troubleshooting information.
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
power source in order to prevent power loss in the event of a power failure.
Note
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
supply modules, you can replace a single power supply without interrupting power to the router.
Note
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power
supply has been removed or replaced.
Caution
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 1074Warning
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
115
Installing the Cisco ASR 903 Router
Removing and Replacing the AC Power Supply

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English