Cisco Systems ASR1000 Cisco ASR 1000 Series Router Power Supplies

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Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation and Initial Configuration Guide

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Chapter 2 Cisco ASR 1000 Series Routers Components

Cisco ASR 1000 Series Router Power Supplies

All Cisco ASR 1000 Series Router configurations support AC and DC power supply options. The

modular chassis configurations support the installation of two power supplies for redundancy. When an

external power supply fails or is removed, the other power supply provides power requirements for the

chassis.

You are required to always have two power supplies installed in the chassis to insure sufficient cooling

for the box. The system fans are inside the power supply unit and must spin for cooling. No Cisco

ASR 1000 Series Router will operate for more than two to three minutes without two power supplies

installed. Since all the system fans can be powered by one power supply, it is not required for the second

power supply unit to be powered on, but it must be installed. Cisco IOS software specifically looks for

two power supplies in the chassis and will automatically initiate a shutdown if only one power supply is

detected.

This section contains the following topics:

•Power Supply Requirements for All Cisco ASR 1000 Series Routers, page 2-14

•Power Supplies for Cisco ASR 1006 Router, page 2-16

•Power Supplies for Cisco ASR 1004 Router, page 2-21

•Power Supplies for Cisco ASR 1002 Router, page 2-26

This section contains power supply specifications for the Cisco ASR 1006, ASR 1004, and ASR 1002

routers. The following topics are covered:

•DC power supply input ratings and circuit breaker specifications

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Maximum and minimum Amps for the branch circuit breakers

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Maximum and minimum size of the AWG wire required for each circuit breaker.

•AC and DC power supply types

•AC and DC power supply ratings