Power Supply Considerations; Rack Configuration Considerations - Cisco Firepower 9300 Hardware Installation Manual

Power Supply Considerations

• Ensure that the chassis cover is secure. The chassis is designed to allow cooling air to flow effectively
• Always follow the ESD-prevention procedures described previously to avoid damage to equipment.

Power Supply Considerations

See Power Supply Modules, on page 26
the Firepower 9300 .
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

See Rack-Mount the Chassis, on page 52
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
• The rack-mounting posts need to be 2 to 3.5 mm thick to work with the slide rail rack mounting.
• If you are mounting a chassis in an open rack, make sure that the rack frame does not block the intake
• If your rack includes closing front and rear doors, the doors must have 65 percent open perforated area
• Be sure enclosed racks have adequate ventilation. Make sure that the rack is not overly congested as each
• In an enclosed rack with a ventilation fan in the top, heat generated by equipment near the bottom of the
Cisco Firepower 9300 Hardware Installation Guide
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within it. An open chassis allows air leaks, which may interrupt and redirect the flow of cooling air from
the internal components.
Damage from static discharge can cause immediate or intermittent equipment failure.
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.
spacing according to section 1 of ANSI/EIA-310-D-1992.
or exhaust ports.
evenly distributed from top to bottom to permit adequate airflow.
chassis generates heat. An enclosed rack should have louvered sides and a fan to provide cooling air.
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.
for more detailed information about the power supply modules in
for the procedure for rack-mounting the chassis.
Installation Preparation