Removing And Replacing A Dc Power Supply In Cisco Asr 1004 Router - Cisco ASR 1000 series Hardware Installation Manual

Removing and Replacing the Cisco ASR 1004 Router Power Supplies
Unplug the power cable from the AC inlet on the back of the power supply and the power source.
Step 4
Unscrew the four power supply captive screws and grasp the handles on both sides of the power supply.
Step 5
Note
If you remove a power supply from a system that has four power supplies that are connected and powered
Caution
on, the system can run only for a maximum of five minutes before shutting down. However, because the
fans and power elements are independent within the power supply, the replacement power supply does
not have to be energized within five minutes. The only requirement is that the power supply be installed
in the chassis in order to energize the fans and maintain proper system cooling.
Grasping the power supply handles, pull the power supply from the chassis.
Step 6
Replace the AC power supply within five minutes.
Step 7
This completes the procedure for removing the AC power supply from the Cisco ASR 1004 chassis.
Replacing the AC Power Supply in Cisco ASR 1004 Router
This section provides information about installing an AC power supply in the Cisco ASR 1004 Router.
Never install an AC power module and a DC power module in the same chassis. Statement 1050
Warning
Insert an AC power supply in power supply slot 0 or power supply slot 1 until it is fully seated.
Step 1
Tighten the captive screws.
Step 2
Insert the AC power cable.
Step 3
Plug the power supply cable into the power source.
Step 4
Turn the power supply Standby switch to On (|) position.
Step 5
This completes the procedure for installing the AC power supply in the Cisco ASR 1004 Router.

Removing and Replacing a DC Power Supply in Cisco ASR 1004 Router

This section provides information about removing and installing a DC power supply in the Cisco
ASR 1004 Router.
Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation Guide
14-70
Four power supplies must be installed in the chassis at all times, with a minimum of two power
supplies (one per zone) connected to the mains in order to power on the system and ensure
sufficient cooling. The system fans are inside the power supply units and must spin for cooling.
Because all the system fans can be powered by one power supply, the second power supply unit
does not have to be powered on, but must be connected.
Chapter 14 Removing and Replacing FRUs from the Cisco ASR 1000 Series Routers
OL-13208-11