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

Installation Preparation
Always follow ESD-prevention procedures when removing and replacing components. Ensure that the chassis
is electrically connected to an earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good
skin contact. Connect the grounding clip to an unpainted surface of the chassis frame to safely ground ESD
voltages. To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively.
If no wrist strap is available, ground yourself by touching the metal part of the chassis.
For safety, periodically check the resistance value of the antistatic strap, which should be between one and
10 megohms.

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

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-in. (48.3 cm) 4-post EIA rack with mounting rails that conform to English universal hole
• Front and rear doors—If your rack includes closing front and rear doors, the doors must have 65 percent
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.
spacing per section 1 of ANSI/EIA-310-D-1992.
open perforated area evenly distributed from top to bottom to permit adequate airflow.
for more detailed information about the power supply modules in
Cisco Firepower 4110, 4120, 4140, and 4150 Hardware Installation Guide
Site Environment
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