Dell Dimension 4100 - Manual (Page 96)

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If necessary, consult a Dell Technical Support representative or an
experienced radio/television technician for additional suggestions. You may
find the FCC Interference Handbook, 1986, to be helpful. It is available from
the U.S. Government Printing Office, Washington, DC 20402, Stock
No. 004-000-00450-7 or on the World Wide Web at
http://www.fcc.gov/cib/Publications/tvibook.html.
Dell computer systems are designed, tested, and classified for their
intended electromagnetic environment. These electromagnetic
environment classifications generally refer to the following harmonized
definitions:
• Class A is typically for business or industrial environments.
• Class B is typically for residential environments.
Information Technology Equipment (ITE), including peripherals,
expansion cards, printers, input/output (I/O) devices, monitors, and so on,
that are integrated into or connected to the system should match the
electromagnetic environment classification of the computer system.
A Notice About Shielded Signal Cables: Use only shielded cables for
connecting peripherals to any Dell device to reduce the possibility of
interference with radio communications services. Using shielded cables
ensures that you maintain the appropriate EMC classification for the
intended environment. For parallel printers, a cable is available from Dell.
If you prefer, you can order a cable from Dell on the World Wide Web at
http://www.dell.com/products/dellware/index.htm.
Most Dell computer systems are classified for Class B environments. To
determine the electromagnetic classification for your system or device, refer
to the following sections specific for each regulatory agency. Each section
provides country-specific EMC/EMI or product safety information.