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0G913bk1.book Page 33 Thursday, October 18, 2001 12:33 PM
Information Technology Equipment (ITE), including devices, expansion
cards, printers, input/output (I/O) devices, monitors, and so on, that are
integrated into or connected to the computer should match the
electromagnetic environment classification of the computer.
A Notice About Shielded Signal Cables: Use only shielded cables for
connecting devices 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://accessories.us.dell.com/.
Most Dell computers are classified for Class B environments. However, the
inclusion of certain options can change the rating of some configurations to
Class A. To determine the electromagnetic classification for your computer
or device, refer to the following sections specific for each regulatory agency.
Each section provides country-specific EMC/EMI or product safety
information.
CE Notice (European Union)
Marking by the symbol
indicates compliance of this Dell computer to
the EMC Directive and the Low Voltage Directive of the European Union.
Such marking is indicative that this Dell system meets the following
technical standards:
•
EN 55022 — “Limits and Methods of Measurement of Radio
Interference Characteristics of Information Technology Equipment.”
•
EN 55024 — “Information technology equipment - Immunity
characteristics - Limits and methods of measurement.”
•
EN 61000-3-2 — “Electromagnetic compatibility (EMC) - Part 3:
Limits - Section 2: Limits for harmonic current emissions (Equipment
input current up to and including 16 A per phase).”
•
EN 61000-3-3 — “Electromagnetic compatibility (EMC) - Part 3:
Limits - Section 3: Limitation of voltage fluctuations and flicker in
low-voltage supply systems for equipment with rated current up to and
including 16 A.”
•
EN 60950 — “Safety of Information Technology Equipment.”
NOTE: EN 55022 emissions requirements provide for two classifications:
•
Class A is for typical commercial areas.
S y s t e m I n f o r m a t i o n G u i d e
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