4
When Installing the Unit
• To avoid damage to the unit and/or connected
equipment:
· Never connect the IR-820SP or IR-802T
connection terminal to a PC or LAN.
· Never short-circuit the terminal to ground.
• Be sure to follow the instructions below when
rack-mounting the unit. Failure to do so may
cause a fire or personal injury.
· Install the equipment rack on a stable, hard
floor. Fix it with anchor bolts or take other
arrangements to prevent it from falling down.
· Rack-mounting screws are not supplied with
the unit. Prepare them that are appropriate
for the equipment rack.
Note:
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 with radio communications. 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 turning 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 the 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/television technician for help.
3. GENERAL DESCRIPTION
The IR-801AF US DQ is an Audio interface unit designed for exclusive use with TOA’s Infrared
wireless microphone system* consisting of the IR-310M Infrared Wireless Microphone, IR-802T
Infrared Wireless Tuner, and IR-820SP Infrared Wireless Speaker.
Via IR-801AF US DQ, two IR-820SP and two IR-802T are available to connect.
Two infrared signals from each IR-820SP are mixed and distributed to each IR-802T.
In combine mode, two audio signals from each IR-802T are mixed and distributed to each IR-
820SP. And in separate mode, each audio signals from two IR-802T passes through into each IR-
820SP.
The IR-801AF US DQ is equipped with a single channel wireless tuner having a fixed frequency. It
makes a priority the IR-310M Y PQ and makes mute other infrared microphone when receiving a
priority control signal transmitted through the priority switch operation of the IR-310M Y PQ.
* A PA system designed for use in the school classrooms.
FCC Compliance
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
Any modifications made to this device that are not approved by TOA Corporation may void
the authority granted the user by the FCC to operate this equipment.
CAUTION
Indicates a potentially hazardous situation
which, if mishandled, could result in moderate or
minor personal injury, and/or property damage.
