Dell Precision Workstation 450 - FCC Notices (U.S. Only)

Regulatory Notices 259
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 accessories.us.dell.com/sna/category.asp?category_id=4117.
Most Dell computer systems 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 system or device, see the following 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 Commission
(FCC) as Class B digital devices. To determine which classification applies to your
computer system, examine all FCC registration labels located on the bottom, side, 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 considered to be a Class A digital
device. If all labels carry an FCC Class B rating as distinguished by either an FCC ID
number or the FCC logo, ( ), your system is considered to be a Class B digital device.
Once you have determined your system’s FCC classification, read the appropriate FCC
notice. Note that FCC regulations provide that changes or modifications not expressly
approved by Dell could void your authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may
cause undesired operation.