Toa IR-801AF User manual

This manual offers not only the installation and usage of the IR-801AF US DQ but also the
general descriptions for the entire Wireless microphone system* such as system configuration
and connection.
For details about the system components, refer to the instruction manual attached to each
component.
* The Wireless microphone system is comprised of the following components:
•IR-802T CU AQ, IR-802T CU 1Q Infrared Wireless Tuner
•IR-820SP Y 4Q Infrared Wireless Speaker
•IR-310M Y PQ and IR-200M Y 4Q Infrared Wireless Microphones
•IR-310BC and IR-200BC Battery Charger
•IR-200BT-2 Ni-MH Battery
INSTRUCTION MANUAL
AUDIO INTERFACE UNIT IR-801AF
Thank you for purchasing TOA’s Audio Interface Unit.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
TOA Canada Corporation

2
TABLE OF CONTENTS
1. IMPORTANT SAFETY INSTRUCTIONS ........................................................................... 3
2. SAFETY PRECAUTIONS .................................................................................................. 3
3. GENERAL DESCRIPTION................................................................................................. 4
4. FEATURES ........................................................................................................................ 5
5. HANDLING PRECAUTIONS.............................................................................................. 5
6. NOMENCLATURE AND FUNCTIONS............................................................................... 5
[Front]......................................................................................................................................... 5
[Rear] ......................................................................................................................................... 6
7. SYSTEM CONFIGURATION.............................................................................................. 7
7.1. Four channels system for large class room................................................................ 7
7.2. Four channels system for dual zone class rooms...................................................... 7
7.3. Two channels system for large class room ................................................................ 8
8. CONNECTIONS ................................................................................................................. 8
8.1. Connections for four channels system............................................................................. 8
8.2. Connections for two channels system ............................................................................. 9
9. Priority control for system ........................................................................................... 10
9.1. Four channels system for large class room.............................................................. 10
9.2. Four channels system for dual zone class rooms.................................................... 11
9.3. Two channels system for large class room .............................................................. 11
10. RACK MOUNTING ......................................................................................................... 12
11.SPECIFICATIONS............................................................................................................ 12

3
1. IMPORTANT SAFETY INSTRUCTIONS
• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings.
Install in accordance with the manufacture's
instructions.
• Do not install near any heat sources such
as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce
heat.
• Do not defeat the safety purpose of the
polarized or grounding-type plug.
A polarized plug has two blades with one
wider than the other. A grounding type plug
has two blades and a third grounding prong.
The wide blade or the third prong are provided
for your safety. If the provided plug does not
fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
• Protect the power cord from being walked on
or pinched particularly at plugs, convenience
receptacles, and the point where they exit
from the apparatus.
• Only use attachments/accessories specified
by the manufacturer.
• Use only with the cart, stand, tripod, bracket,
or table specified by the manufacturer, or sold
with the apparatus.
When a cart is used, use caution when moving
the cart/apparatus combination to avoid injury
from tip-over.
• Unplug this apparatus during lightning storms
or when unused for long periods of time.
• Refer all servicing to qualified service
personnel. Servicing is required when
the apparatus has been damaged in any way,
such as power-supply cord or plug is
damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does
not operate normally, or has been dropped.
2. SAFETY PRECAUTIONS
• Before installation or use, be sure to carefully read all the instructions in this section for correct
and safe operation.
• Be sure to follow all the precautionary instructions in this section, which contain important
warnings and/or cautions regarding safety.
• After reading, keep this manual handy for future reference.
• Since the unit is designed for indoor use, do
not install it outdoors. If installed outdoors, the
aging of parts causes the unit to fall off, resulting
in personal injury. Also, when it gets wet with
rain, there is a danger of electric shock.
When Installing the Unit
• Do not expose the unit to rain or an
environment where it may be splashed by
water or other liquids, as doing so may result
in fire or electric shock.
• Avoid installing or mounting the unit in
unstable locations, such as on a rickety table
or a slanted surface. Doing so may result in
the unit falling down and causing personal
injury and/or property damage.
When the Unit is in Use
• Do not place cups, bowls, or other containers
of liquid or metallic objects on top of the unit.
If they accidentally spill into the unit, this may
cause a fire or electric shock.
WARNING
Indicates a potentially hazardous situation
which, if mishandled, could result in death or
serious personal injury.

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.

5
4. FEATURES
• Only CAT. 5 straight cable fitted with RJ-45 connecters for connections from the IR-801AF to each
of the IR-802T and the IR-820SP.
• Makes a priority the IR-310M Y PQ and makes mute other infrared microphone while the priority
switch operation of the IR-310M Y PQ. (This function is enabled only when the IR-310M’s
transmitting frequency is set to Channel “A.”)
• Power is supplied from the IR-802T or optional AC adapter.
• A half-rack-mount size. It can be mounted in a 19-inch EIA standard rack using the optional rack
mount kit.
5. HANDLING PRECAUTIONS
• Install the unit as far as possible from fluorescent lights, digital equipment, PCs and other devices
that generate high-frequency noise.
• When cleaning, be sure to first switch off the unit’s power, then wipe with a dry cloth. If the unit is
extremely dirty, use a cloth moistened in a neutral detergent. Do not use benzene, thinner, alcohol
and chemically-processed towels, as they can discolor or deform the unit’s exterior.
6. NOMENCLATURE AND FUNCTIONS
[Front]
1. Power indicator
Lights while DC Power is supplied from the
IR-802T.
2. Reception indicator (Channel A, Teacher)
Lights during reception of the infrared
wireless microphone set to Channel A.
3. Priority function indicator
Lights during reception of the priority function
signal from the infrared wireless microphone.
4. Mode selector (Combine / Separate)
Selects the mode of the audio signal to be
outputted from IR-802T to IR-820SP
Combine : Outputs the mixed audio signal from
each tuner IR-802T to two IR-820SP
Separate : Outputs each audio signal from
each tuner IR-802T to each IR-820SP
separately.
5. Mode indicator
Lights while mode selector is set to “Combine”.
1
4
5
3
2

6
CAUTION
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.
[Rear]
6. IR-802T CU AQ connection terminal*
Connect this terminal to the IR-802T CU AQ
Infrared Wireless Tuner using a Category 5
cable (straight type).
7. IR-820SP Y 4Q connection terminal*
Connect this terminal to the IR-820SP
Infrared Wireless Speaker using a
Category 5 cable (straight type).
8. IR-802T CU 1Q connection terminal*
Connect this terminal to the IR-802T CU 1Q
Infrared Wireless Tuner using a Category 5
cable (straight type).
9. DC inlet terminal
Connect the optional AC adapter.
10. Cable clip
Run the AC adapter cable through this clip to
prevent its plug from being removed.
* Notes
• Use a Category 5 plenum cable (straight type) when routing the cable in locations where
plenum-rated cable is required.
• Cross type cables cannot be used.
4
5
6
7
AUDIO OUT
CONTROL OUT
TO
IR
-
820SP
TO
IR
-
802T
DC24V
H C E
MADE
IN
TAIWAN
AC adapter plug
Cable clip
6
7
8
7
9
10

7
7. SYSTEM CONFIGURATION
7.1. Four channels system for large class room
7.2. Four channels system for dual zone class rooms
IR-802T CU AQ
Infrared Wireless Tuner
IR-802T CU 1Q
Infrared Wireless Tuner
IR-200M Y 4Q
Infrared Wireless microphone
Student 2: channel “1”
Student 3: channel “2”
IR-310M Y PQ
Infrared Wireless Microphone
Teacher: channel “A”
IR-200M Y 4Q
Infrared Wireless Microphone
Student 1: channel “B”
IR-801AF US DQ
Audio Interface Unit
(Combine mode)
IR-820SP Y 4Q
Infrared Wireless Speaker
IR-820SP Y 4Q
Infrared Wireless Speaker
IR-802T CU AQ
Infrared Wireless Tuner
F
or class room 1
IR-802T CU 1Q
Infrared Wireless Tuner
F
or class room 2
IR-200M Y 4Q
Infrared Wireless microphone
Student 2: channel “2”
IR-310M Y PQ
Infrared Wireless Microphone
Teacher 1: channel “A”
IR-200M Y 4Q
Infrared Wireless Microphone
Student 1: channel “B”
IR-801AF US DQ
Audio Interface Unit
(Separate mode)
IR-820SP Y 4Q
Infrared Wireless Speaker
for class room 2
IR-310M Y PQ
Infrared Wireless Microphone
Teacher 2: channel “1”
IR-820SP Y 4Q
Infrared Wireless Speaker
for class room 1
Category 5 cable (straight type)
Category 5 cable (straight type)
Class room 1
Class room 2

8
7.3. Two channels system for large class room
8. CONNECTIONS
8.1. Connections for four channels system
IR-802T CU AQ
Infrared Wireless Tuner
IR-310M Y PQ
Infrared Wireless Microphone
Teacher: channel “A”
IR-200M Y 4Q
Infrared Wireless Microphone
Student 1: channel “B”
IR-801AF US DQ
Audio Interface Unit
(Combine mode)
IR-820SP Y 4Q
Infrared Wireless Speaker
IR-820SP Y 4Q
Infrared Wireless Speaker
Category 5 cable (straight type)
Category 5 cable (straight type)
IR
-
820SP Y 4Q
IR
-
820SP Y 4Q
IR
-
801AF US DQ
IR
-
802T CU 1Q
IR
-
802T CU AQ
AC adapter
AC adapter
Category 5 cable
(straight type)
Cable
“
a
”
Cable
“
b
”
T
o AC mains
T
o AC mains
Note
s
:
• The IR-801AF's power
is supplied from the
IR-802T
• The connecting
positions of IR-802T
CU AQ and 1Q to IR-
801AF US DQ are
defined because of
priority control.
• The cable length must
be
Cable “a” = Cable “b”.

9
8.2. Connections for two channels system
* Notes
• Use a Category 5 plenum cable (straight type) when routing the cable in locations where plenum-
rated cable is required.
• Cross type cables cannot be used.
CAUTION
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.
Category 5 cable
(straight type)
IR
-
820SP Y 4Q
IR
-
820SP Y 4Q
IR
-
801AF US DQ
IR
-
802T CU AQ
AC adapter
AC adapter
Category 5 cable
(straight type)
Cable
“
a
”
Cable
“
b
”
T
o AC mains
T
o AC mains
Note
s
:
• The connecting position of IR-802T CU AQ is defined because of priority control.
• The cable length must be Cable “a” = Cable “b”.

10
9. Priority control for system
9.1. Four channels system for large class room
Toggle on the Priority function switch of IR-310M Y PQ while speaking, audio from the channel "B"
in IR-802T CU AQ makes mute, and audio from IR-802T CU 1Q also makes mute in IR-801AF US
DQ.
The channel "B", "1" and "2" as the student microphone are muted.
IR-802T CU AQ
Infrared Wireless Tuner
IR-802T CU 1Q
Infrared Wireless Tuner
IR-200M Y 4Q
Infrared Wireless microphone
Student 2: channel “1”
Student 3: channel “2”
IR-310M Y PQ
Infrared Wireless Microphone
Teacher: channel “A”
IR-200M Y 4Q
Infrared Wireless Microphone
Student 1: channel “B”
IR-801AF US DQ
Audio Interface Unit
(Combine mode)
IR-820SP Y 4Q
Infrared Wireless Speaker

11
9.2. Four channels system for dual zone class rooms
Toggle on the Priority function switch of each IR-310M Y PQ while speaking, microphone for
student in each IR-802T makes mute.
9.3. Two channels system for large class room
Toggle on the Priority function switch
of IR-310M Y PQ while speaking,
audio from the channel "B" in IR-802T
CU AQ makes mute.
IR-802T CU AQ
Infrared Wireless Tuner
F
or class room 1
IR-802T CU 1Q
Infrared Wireless Tuner
F
or class room 2
IR-200M Y 4Q
Infrared Wireless microphone
Student 2: channel “2”
IR-310M Y PQ
Infrared Wireless Microphone
Teacher 1: channel “A”
IR-200M Y 4Q
Infrared Wireless Microphone
Student 1: channel “B”
IR-801AF US DQ
Audio Interface Unit
(Separate mode)
IR-820SP Y 4Q
Infrared Wireless Speaker
for class room 2
IR-310M Y PQ
Infrared Wireless Microphone
Teacher 2: channel “1”
IR-820SP Y 4Q
Infrared Wireless Speaker
for class room 1
Class room 1
Class room 2
IR-802T CU AQ
Infrared Wireless Tuner
IR-310M Y PQ
Infrared Wireless Microphone
Teacher: channel “A”
IR-200M Y 4Q
Infrared Wireless Microphone
Student 1: channel “B”
IR-801AF US DQ
Audio Interface Unit
(Combine mode)
IR-820SP Y 4Q
Infrared Wireless Speaker

10. RACK MOUNTING
To mount one unit in an equipment rack, use the optional MB-WT3 Rack Mount Kit.
Note
For the mounting methods, refer to
the MB-WT3 instruction manual.
11. SPECIFICATIONS
Power Source 24 V DC (Supplied from IR-802T or optional AC adapter)
Infrared Frequency Channel Channel A: 3.100 MHz
Operating Temperature −10 to +50 ºC (14 to 122 ºF)
Operating Humidity 90 % RH or less (no condensation)
Finish Control section: ABS resin, Black
Dimensions 210 (w) x 44 (h) x 181 (d) mm (8.27" x 1.73" x 7.13")
Weight 560 g (1.23 lb)
Note: The design and specifications are subject to change without notice for improvement.
• Optional product
MB-WT3 Rack Mount Kit
133-07-00126-00
www.toacanada.com
Fiber
washer*
Rack mounting screw*
* Supplied with the MB
-
WT3
Rack
TOA Canada Corporation