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Chapter 2
Preparing for Installation
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Protecting Against Electrostatic Discharge
Static electricity can harm delicate components inside your computer. To prevent static damage,
discharge static electricity from your body before you touch any of your computer's electronic
components, such as the microprocessor. You can do so by touching an unpainted metal surface on the
computer chassis.
As you continue to work inside the computer, periodically touch an unpainted metal surface to remove
any static charge that your body may have accumulated.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
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•
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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
Note
To predict and remedy strong EMI, consult RFI experts.
OL-9969-03
Do not modify power cables or plugs. Consult a licensed electrician or your power company for site
modifications. Always follow your local and national wiring regulations.
When unpacking a static-sensitive component from its shipping carton, do not remove the
component from the antistatic packing material until you are ready to install the component in your
computer. Just before unwrapping the antistatic packaging, ensure that you discharge static
electricity from your body.
When transporting a sensitive component, first place it in an antistatic container or packaging.
Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and
workbench pads.
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.
Installation Guide for Cisco Secure ACS Solution Engine 4.1
Safety
2-5
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