User`s manual
Using a receptacle for only the computer and terminal also protects against
data errors or equipment damage. Sharing the receptacle with
noise-
producing devices such as fax machines, printers, calculators, and heaters
may allow noise pickup.
Grounding Techniques
Many terminals and computers are dependent on earth ground to set a
reference for signal ground. Improper grounding or differences in ground
potential between your computer and terminals can damage your equip-
ment or even create a safety hazard. Consequently, you should make sure
that every component in your system is properly grounded.
Connect your computer and all terminals and other peripherals to
three-
pronged grounded receptacles, making sure that the receptacles are wired
properly. If you must use three-prong to two-prong adapters, make sure
that the adapter ground tabs are properly grounded.
A proper chassis ground guarantees that no dangerous voltages exist on
terminal frames. Proper grounding also helps cancel noise that can other-
wise be induced on the frame or equipment.
Local electrical codes may also dictate special grounding arrangements.
Your electrician can make sure that your installation complies with all
applicable codes. If you have any doubt about the integrity of the ground-
ing system in your location, have the system checked by a licensed
electrician.
Static Protection
Your computer’s case not only houses its family of computer components,
but it also protects these sensitive electronic components from stray mag-
netic
@VII)
and electrical
WI,
static) fields.
&ILL
WARNING
Using pn@er
stattc
control
metboa
is
esseniial
wheneoeryou
use, move, or
open
ymcr
computerfor modifications.
4
Chapter Two: Protecting Your Equipment and Data