Dell Dimension L Series, Справочное и ремонтное руководство

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D-2 Dell Dimension L Series Systems Reference and Troubleshooting Guide
Information Technology Equipment (ITE), including peripherals, expansion cards, print- ), 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
Computer Corporation. If you prefer, you can order a cable from Dell Com-
puter Corporation 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
wing
sections specific for each regulatory agency. Each section provides country-specific
EMC/EMI or product safety information.
FCC Notices (U.S. Only)
Most Dell computer systems are classified by the Federal Communications Commis-
sion (FCC) as Class B digital devices. However, the inclusion of certain options can
B digital devices. However, the inclusion of certain options can
change the rating of some configurations to Class A. To determine which classification
applies to your computer system, examine all FCC registration labels located on the
bels located on the
bottom or back panel of your computer, on card-mounting brackets, and on the cards
themselves. If any one of the labels carries a Class A rating, your entire system is con-
sidered to be a Class A digital device. If
all labels carry either the Class B rating
distinguished by either an FCC ID number or the FCC logo, ( ), your system is con-
sidered to be a Class B digital device.
Once you have determined your system’s FCC classification, read the appropriate ’s FCC classification, read the appropriate
FCC notice. Note that FCC regulations provide that changes or modifications not
expressly approved by Dell Computer Corporation could void your authority to operate
this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the follow- 15 of the FCC Rules. Operation is subject to the follow-
ing two conditions:
•
This device may not cause harmful interference.
•
This device must accept any interference received, including interference that
may cause undesired operation.
Class A
This equipment has been tested and found to comply with the limits for a Class A dig- quipment has been tested and found to comply with the limits for a Class A dig-
ital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the manufacturer’s