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CiscoASR 9000 Series Aggregation Services Router Hardware Installation Guide
Chapter5 Replacing Cisco ASR 9000 Series Router Components
Removing and Replacing Power System Components
Caution Do not turn off the switch on the power tray to reconnect AC power cords. An individual AC power cord
can be plugged in while the system is powered from other AC power sources.
If power has been totally disconnected from the router, follow these steps to reconnect AC power to the
AC power tr ay:
Caution The following procedure is only to be used when reconnecting power to all power trays in a system that
has been powered down completely.
Step1 Verify that the power switch at the rear of the Version 1 AC power tray is set to the OFF (0) position. For
Version 2 and Version 3 AC power trays, verify that the power switch at the front of the power tray set
to the OFF (0) position.
Step2 Check that the circuit breaker assigned to the AC power source you are connecting is set to OFF (0).
Caution To ensure that power remains off while you are performing this procedure, lock-out/tag-out the circuit
breaker switch in the OFF (0) position until you are ready to turn it on.
Step3 Plug the AC power cords into the power tray receptacle (Figure 3-19).
Step4 Close the retainer bracket to secure the AC power cord plug to the power tray receptacle.
Step5 Power on the AC power source circuit breaker.
Step6 Set the power switch at the rear of the AC power tray to the ON (1) position.