IBM Personal Computer AT Manual To Operations page 5

FEDERAL COMMUNICATIONS
COMMISSION RADIO FREQUENCY
INTERFERENCE STATEMENT
Warning: The equipment described herein has
been certified to comply with the limits for a Class
B computing device, pursuant to Subpart J of
Part 15 of FCC rules. Only peripherals (computer
input/output devices, terminals, printers, etc.)
certified to comply with the Class B limits may be
attached to the computer. Operation with
non-certified peripherals is likely to result in
interference to radio and TV reception. If
peripherals not offered by IBM are used with the
equipment, it is suggested to use shielded grounded
cables with in-line filters if necessary.
INSTRUCTIONS TO USER
This equipment generates and uses radio frequency
energy and if not installed and used properly, i.e., in
strict accordance with the operating instructions,
reference manuals, and the service manual, may cause
interference to radio or television reception. It has been
tested and found to comply with the limits for a Class B
computing device pursuant to Subpart J of Part 15 of
FCC Rules, which are designed to provide reasonable
protection against such interference when operated in a
residential installation.
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