Site Environment; Power Supply Considerations; Equipment Rack Configuration Considerations - Cisco Firepower 4100 Series Hardware Installation Manual

Prepare for Installation

Site Environment

When planning the site layout and equipment locations, consider the information in the next section to help
avoid equipment failures and reduce the possibility of environmentally caused shutdowns. If you are currently
experiencing shutdowns or unusually high error rates with your existing equipment, these considerations may
help you isolate the cause of failures and prevent future problems.

Power Supply Considerations

See Power Supply Modules, on page 18
the security appliance.
When installing the chassis, consider the following:
• Check the power at the site before installing the chassis to ensure that it is "clean" (free of spikes and
• Install proper grounding for the site to avoid damage from lightning and power surges.
• The chassis does not have a user-selectable operating range. Refer to the label on the chassis for the
• Install an uninterruptible power source for your site, if possible.
• If you are using dual redundant (1+1) power supplies, we recommend that you use independent electrical

Equipment Rack Configuration Considerations

Consider the following when planning an equipment-rack configuration:
• If you are mounting a chassis in an open rack, make sure that the rack frame does not block the intake
• Standard 19-inch (48.3 cm) four-post EIA rack with mounting rails that conform to English universal
• Front and rear doors—If your rack includes closing front and rear doors, the doors must have 65 percent
• Be sure enclosed racks have adequate ventilation. Make sure that the rack is not overly congested as
• In an enclosed rack with a ventilation fan in the top, heat generated by equipment near the bottom of
• Baffles can help to isolate exhaust air from intake air, which also helps to draw cooling air through the
noise). Install a power conditioner, if necessary, to ensure proper voltages and power levels in the
appliance input voltage.
correct appliance input-power requirement.
circuits for each power supply.
or exhaust ports.
hole spacing per section 1 of ANSI/EIA-310-D-1992.
open perforated area evenly distributed from top to bottom to permit adequate airflow.
each chassis generates heat. An enclosed rack should have louvered sides and a fan to provide cooling
air.
the rack can be drawn upward and into the intake ports of the equipment above it in the rack. Ensure
that you provide adequate ventilation for equipment at the bottom of the rack.
chassis. The best placement of the baffles depends on the airflow patterns in the rack. Experiment with
different arrangements to position the baffles effectively.
for more detailed information about the power supply modules in
Cisco Firepower 4100 Series Hardware Installation Guide
Site Environment
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