Removing And Replacing A -48 Vdc Power Supply In Cisco Asr 1002 Router - Cisco ASR 1013 Hardware Installation Manual

Removing and Replacing a –48 VDC Power Supply in Cisco ASR 1002 Router
Caution Do not run the AC power cord through the either power supply handles as shown in the following figure.
Figure 280: Cisco ASR 1002 Router Improper AC Power Cord Cabling
Note Using a tie wrap for the AC power cable is optional and not necessary. However, if you do attach the AC
power cable to a power supply tab and then you remove the AC power cable for some reason, check for any
damage to the cable after you cut the tie wrap off. If the power cord is damaged, replace it immediately.
Step 4 Plug the AC power supply cable into the AC power source.
Two power supplies must be installed in the chassis at all times, with a minimum of one power supply connected
Note
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.
If you remove a power supply from a system that are connected and powered on, the system can run only for
Caution
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.
What to Do Next
This completes the procedure for installing the AC power supply in the Cisco ASR 1002 Router.
Removing and Replacing a –48 VDC Power Supply in Cisco ASR 1002 Router
This section provides information about removing and installing a –48 VDC power supply in the Cisco ASR
1002 Router.
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
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