Isgus PERFECT 2040 Operating Manual page 4

This Equipment 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.
This equipment 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.
Only peripherals certified to comply with the Class B limits may be
attached to this equipment.
However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by tuning the equipment 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 receiving antenna.
− Increase the separation between the
equipment and receiver.
− Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
− Consult the dealer or an experienced
radio/TV technician for help.
WARNING