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Cisco PIX Security Appliance Hardware Installation Guide
78-15170-03
Chapter 1 Preparing for Installation
General Site Requirements
General Site Requirements
The topics in this section describe the requirements your site must meet for safe installation and
operation of your system. Ensure that your site is properly prepared before beginning installation.
This section includes the following topics:
• Site Environment, page 1-4
• Preventive Site Configuration, page 1-4
• Power Supply Considerations, page 1-4
• Configuring Equipment Racks, page 1-5
Site Environment
The PIX security appliance can be placed on a desktop. Except for the PIX 501 and the PIX 506/506E,
all other PIX security appliance models can be mounted in a rack. The location of the PIX security
appliance and the layout of your equipment rack or wiring room are extremely important for proper
system operation. Equipment placed too close together, inadequate ventilation, and inaccessible panels
can cause system malfunctions and shutdowns, and can make PIX security appliance maintenance
difficult.
When planning your site layout and equipment locations, keep in mind the precautions described in the
next section “Preventive Site Configuration,” to help avoid equipment failures and reduce the possibility
of environmentally caused shutdowns. If you are currently experiencing shutdowns or unusually high
errors with your existing equipment, these precautions may help you isolate the cause of failures and
prevent future problems.
Preventive Site Configuration
The following precautions helps you plan an acceptable operating environment for your PIX security
appliance and helps you 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.
• Always follow the ESD-prevention procedures described previously to avoid damage to equipment.
Damage from static discharge can cause immediate or intermittent equipment failure.
• 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 internal components.
Power Supply Considerations
The PIX 515/515E, PIX 520, PIX 525, PIX 535, and PIX 10000, have AC power supplies. The
PIX 515/515E, PIX 520, PIX 525, and PIX 535 models can have either an AC or DC power supply. The
PIX 501 and the PIX 506/506E have an external power supply that converts AC to DC.
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