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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
Step4 Verify that the (green) Power Input indicator on the front of the power module goes on. If the indicator
does not light, see Troubleshooting the Power Subsystem, page4-7.
Disconnecting AC Power
Follow these steps to disconnect an individual AC power cord:
Step1 Power OFF (0) the circuit breaker assigned to the AC power source you are disconnecting.
Step2 Loosen the retainer bracket holding the AC power cord to the power tray receptacle.
Step3 Unplug the AC power cord from the power tray receptacle.
Caution Do not turn off the switch on the power tray to remove AC power cords. An individual AC power cord
can be unplugged while the system is powered from other AC power sources.
If it becomes necessary to disconnect all AC power from the router, follow these steps:
Caution Do not disconnect all power from the router to replace components, including power modules. See
Removing and Replacing Power System Components, page5-12.
Step1 Set the power switch at the rear of the Version 1 AC power tray to the OFF (0) position. For Version 2
and Version 3 AC power trays, set the power switch at the front of the to the OFF (0) position.
Step2 Power OFF (0) the circuit breakers assigned to the AC power sources you are disconnecting.
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 Loosen the retainer bracket holding the AC power cords to the power tray receptacle.
Step4 Unplug the AC power cords from the power tray receptacles.
Reconnecting AC Power
Follow these steps to reconnect an individual AC power cord to a power tray:
Step1 Power OFF (0) the circuit breaker assigned to the AC power source you are reconnecting.
Step2 Plug the AC power cord into the power tray receptacle.
Step3 Close and tighten the retainer bracket holding the AC power cord to the power tray receptacle.
Step4 Power on the AC power source circuit breaker.