Removing And Replacing An Ac Power Supply - Cisco ASR-920-24SZ-IM Hardware Installation Manual

Installing the Router

Removing and Replacing an AC Power Supply

This section describes how to remove and replace an AC power supply.
The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router power supplies are
Note
hot-swappable. If you have installed redundant power supplies, you can replace a single power supply
without interrupting power to the router.
Caution To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power
supply has been removed or replaced.
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
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning Installation of the equipment must comply with local and national electrical codes. Statement 1074
Follow these steps to remove and replace an AC power supply:
SUMMARY STEPS
1. Disconnect the power cord from the power source. Do not touch the metal prongs on the power cord when
it is still connected to the power supply.
2. Remove the power cord from the power connection on the power supply. Do not touch the metal prongs
embedded in the power supply.
3. Loosen the captive installation screw as shown in the figure below.
4. Grasp the AC power supply metal tab with one hand, and slide it part of the way out of the chassis. Place
your other hand underneath the power supply, and slide it completely out of the chassis. See Installing
the AC Power Supply figure.
5. Replace the AC power supply within 5 minutes. See Installing the AC Power Supply figure. If the power
supply bay is to remain empty, install a blank filler plate (Cisco part number 800-39165-01) over the
opening, and secure it with captive installation screws.
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Removing and Replacing an AC Power Supply
Guide
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