Cisco ASR 903 Hardware Installation Guide

Activating the DC Power Supply
Perform the following procedure to activate the DC power supply:
Step 1
Remove the tape from the circuit-breaker switch handle, and restore power by moving the circuit-breaker switch handle
to the On (|) position.
Step 2
Verify power supply operation by checking if the power supply front panel LEDs are in the following states:
•
INPUT OK LED is green
•
OUTPUT FAIL LED is green
If the LEDs indicate a power problem, see Troubleshooting.
If you are installing a redundant DC 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.
If you are installing a redundant DC power supply, repeat these steps for the second power source.
Removing and Replacing the DC Power Supply
This section provides information about removing and replacing the DC power supply in the Cisco ASR 903
Router.
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
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Removing and Replacing the DC Power Supply

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English