Setup guide

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Installation and Setup Guide for Cisco Secure ACS Appliance
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Chapter 2 Preparing for Installation
Preparing Your Site for Installation
Preventing EMI
When you run wires for any significant distance in an electromagnetic field,
electromagnetic interference (EMI) can occur between the field and the signals on
the wires.
Note that:
• Bad plant wiring can result in radio frequency interference (RFI).
• Strong EMI, especially when it is caused by lightning or radio transmitters,
can destroy the signal drivers and receivers in the system, and can even create
an electrical hazard by conducting power surges through lines and into the
system.
To predict and remedy strong EMI, consult RFI experts.
Preparing Your Site for Installation
This section describes the requirements your site must meet for safe installation
and operation of your Cisco Secure ACS Appliance. Ensure that your site is
properly prepared before beginning installation.
Environmental
When planning your site layout and equipment locations, keep in mind the
precautions described in this section to help avoid equipment failures and reduce
the possibility of environmentally caused shutdowns. If you are experiencing
shutdowns or unusually high errors with your existing equipment, these
precautions will help you isolate the cause of failures and prevent future
problems.