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support.dell.com Dell Latitude L400 Advanced Port Replicator User’s Guide 1-11
Regulatory Notices
Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or
conducted along power or signal leads, that endangers the functioning of a radio navi-
gation or other safety service or seriously degrades, obstructs, or repeatedly
interrupts a licensed radio communications service. Radio communications services
include but are not limited to AM/FM commercial broadcast, television, cellular ser-
vices, radar, air-traffic control, pager, and Personal Communication Services (PCS).
These licensed services, along with unintentional radiators such as digital devices,
including computer systems, contribute to the electromagnetic environment.
Electromagnetic Compatibility (EMC) is the ability of items of electronic equipment to
function properly together in the electronic environment. While this computer system
has been designed and determined to be compliant with regulatory agency limits for
EMI, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause interference with radio communications services, which
can be determined by turning the equipment off and on, you are encouraged to try to
correct the interference by one or more of the following measures:
•
Reorient the receiving antenna.
•
Relocate the computer with respect to the receiver.
•
Move the computer away from the receiver.
•
Plug the computer into a different outlet so that the computer and the receiver
are on different branch circuits.
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 electro-
magnetic 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, print-
ers, input/output (I/O) devices, monitors, and so on, that are integrated into or
connected to the system should match the electromagnetic environment classifica-
tion of the computer system.
A Notice About Shielded Signal Cables: Use only shielded cables for con-
necting 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.
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