Power Supply Considerations - Cisco ASA5500-HW - Hardware Accessory Kit Network Device Hardware Installation Manual

Chapter 2 Preparing for Installation

Power Supply Considerations

The Cisco ASA 5500-X series hardware operates on AC power and supports the ability to restore the
previous power state of the system in the event that AC power is lost. Be aware of the following when
interacting with system hardware:
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Observe the following considerations:
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You also need to provide power to the switch with the appropriate AC power cord for your location.
Table 2-1
Table 2-1
Locale
300 W AC Power Supply
North America CAB-AC (72-0259)
Australia,
Europe (except
Italy)
The ASA requires 50 seconds from the time that AC power is applied before the power state can be
updated and stored. This means that any changes to the power state within the first 50 seconds of
applying AC power will not be observed if AC power is removed within that time.
The ASA requires 10 seconds from the time it is placed into standby mode before the power state
can be updated and stored. This means any changes to the power state within the first 10 seconds of
entering standby mode (including the standby mode itself) will not be observed if AC power is
removed within that time.
Check the power at the site before installing the chassis to ensure that the power is "clean" (free of
spikes and noise). Install a power conditioner, if necessary, to ensure proper voltages and power
levels in the source voltage.
Install proper grounding for the site to avoid damage from lightning and power surges.
The ASA chassis does not have a user-selectable operating range. Refer to the label on the chassis
for the correct AC-input power requirement.
Several styles of AC-input power supply cords are available; make sure that you have the correct
style for your site.
Install an uninterruptible power source for your site, if possible.
lists the power cords that are used with the AC power supply.
AC-Input Power Cord Options
Part Number
CAB-ACA
(72-0746-01)
CAB-ACE (72-0460) 8.2 ft (2.5 m) 250 VAC, 10 A
Length Plug Rating
Appliance Coupler
8.2 ft (2.5 m) 125 VAC, 10 A
8.2 ft (2.5 m) 250 VAC, 10 A
Cisco ASA 5500-X Series Hardware Installation Guide
General Site Requirements
Plug Type
2-5