Installation guide

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Cisco ASA 5500-X Series Hardware Installation Guide
OL-32129-01
Chapter 1 About the ASA 5500-X
Power Supply
AC and DC Support
The ASA supports the following power supplies:
• AC power supply—Provides 400 watt output power with two DC voltage outputs: +12 V and +5 V.
The AC power supply operates between 85 and 264 VAC. The AC power supply current shares on
the 12 V output and is used in a dual hot-pluggable configuration. The AC power supply consumes
a maximum of 471 W of input power.
When the Cisco ASA 5500-X operates on AC power, it supports the ability to restore the previous
power state of the system in the event that AC power is lost.
• DC power supply—Provides 400 watt output power with two DC voltage outputs: +12 V and +5.0
V. The power supply operates between –40.5 and –72 VDC. The DC power supply current shares on
the 12 V output and is used in a dual hot-pluggable configuration. The DC power supply consumes
a maximum of 500 W of input power.
Note The ASA 5545-X and ASA 5555-X can support two AC or two DC power supplies. Do not mix AC and
DC power supply units in the same chassis.
Power Supply Indicators and Connections
Figure 1-7 shows both the removable AC (on the left) and DC (on the right) power supplies for the
ASA 5545-X and ASA 5555-X.
Figure 1-7 AC Power Supply and DC Power Supply
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