Site Considerations
Considering the following helps you plan an acceptable operating environment for the chassis, and avoid
environmentally caused equipment failures.
• Electrical equipment generates heat. Ambient air temperature might not be adequate to cool equipment
to acceptable operating temperatures without adequate circulation. Ensure that the room in which you
operate your system has adequate air circulation.
• Ensure that the chassis cover is secure. The chassis is designed to allow cooling air to flow effectively
within it. An open chassis allows air leaks, which may interrupt and redirect the flow of cooling air from
the internal components.
• Always follow the ESD-prevention procedures described previously to avoid damage to equipment.
Damage from static discharge can cause immediate or intermittent equipment failure.
Power Supply Considerations
See
Power Supply Modules, on page 27
for more detailed information about the power supply modules for
your model.
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
noise). Install a power conditioner, if necessary, to ensure proper voltages and power levels in the appliance
input voltage.
• 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
correct appliance 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.
• If you are using dual redundant (1+1) power supplies, we recommend that you use independent electrical
circuits for each power supply.
Rack Configuration Considerations
See
Rack-Mount the Chassis Using Slide Rails, on page 55
and
Rack-Mount the Chassis Using Brackets, on
for the procedure for rack-mounting the chassis.
Consider the following when planning a rack configuration:
• Standard 19-in. (48.3 cm) 4-post EIA rack with mounting rails that conform to English universal hole
spacing according to section 1 of ANSI/EIA-310-D-1992.
• The rack-mounting posts need to be 2 to 3.5 mm thick to work with the slide rail rack mounting.
Cisco Firepower 2100 Series Hardware Installation Guide
49
Installation Preparation
Site Considerations
