AT&T Door Phone Controller Installation And Operation Manual page 92

Appendix F—FCC Regulations and Warranty
FCC Regulations Pertaining to this Equipment
FCC (PART 15)
Radio Frequency
Interference
FCC (PART 68)
The AT&T Door Phone Controller generates and uses radio frequency
energy and if not installed and used in strict accordance with the
manufacturer's instructions, may cause interference to radio and
television reception.
NOTE: The AT&T Door Phone Controller has been tested and
found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a
residential installation. The AT&T Door Phone Controller
generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If the AT&T Door Phone Controller does
cause interference to radio or television reception, which can be
determined by turning the AT&T Door Phone Controller unit off
and on, the user is encouraged to try to correct the interference
by one or more of the following measures:
Reorient or relocate the radio or TV receiving antenna.
Relocate the unit to increase the separation with respect to the
radio or TV receiver or vice-versa.
Plug the unit into a different outlet so that it and the radio or TV
receiver are on different branch circuits.
If necessary, the user should consult the dealer or an experienced
radio/television technician for additional suggestions. The user
may find the following booklet, "How To Identify and Resolve
Radio-TV Interference Problems," helpful. This booklet was
prepared by the Federal Government Printing Office, Washington,
DC 20402. Stock order No. 004-000-00345-4.
This equipment is registered with the Federal Communications
Commission (FCC) in accordance with Part 68 of its Rules. The FCC
requires that the manufacturer provide you with the following
information:
FCC Regulations and Warranty F-1