Toa TS-821 User manual

TS-821, TS-921
TS-822, TS-922
CHAIRMAN UNITS
DELEGATE UNITS
INSTRUCTION MANUAL
Thank you for purchasing TOA's Chairman Units and Delegate Units.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your
equipment.
1. 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.
Indicates a potentially hazardous situation which, if mishandled,
could result in death or serious personal injury.
WARNING
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 re or electric shock.
• Use the unit only with the voltage specied on the unit. Using a voltage higher than that which
is specied may result in re or electric shock.
• Do not cut, kink, otherwise damage nor modify the power supply cord. In addition, avoid
using the power cord in close proximity to heaters, and never place heavy objects -- including
the unit itself -- on the power cord, as doing so may result in re 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
• Should the following irregularity be found during use, immediately switch off the power,
disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer.
Make no further attempt to operate the unit in this condition as this may cause re or electric
shock.
· If you detect smoke or a strange smell coming from the unit
· If water or any metallic object gets into the unit
· If the unit falls, or the unit case breaks
· If the power supply cord is damaged (exposure of the core, disconnection, etc.)
· If it is malfunctioning (no tone sounds.)
• To prevent a re or electric shock, never open nor remove the unit case as there are high
voltage components inside the unit. Refer all servicing to your nearest TOA dealer.

• 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 re or electric shock.
• Do not insert nor drop metallic objects or ammable materials in the ventilation slots of the
unit's cover, as this may result in re or electric shock.
• Do not touch a plug during thunder and lightning, as this may result in electric shock.
• To prevent possible hearing damage, do not listen at high volume levels for long
periods.
When Installing the Unit
• Never plug in nor remove the power supply plug with wet hands, as doing so may cause
electric shock.
• When unplugging the power supply cord, be sure to grasp the power supply plug; never pull
on the cord itself. Operating the unit with a damaged power supply cord may cause a re or
electric shock.
• When moving the unit, be sure to remove its power supply cord from the wall outlet. Moving
the unit with the power cord connected to the outlet may cause damage to the power cord,
resulting in re or electric shock. When removing the power cord, be sure to hold its plug to
pull.
• Avoid installing the unit in humid or dusty locations, in locations exposed to the direct sunlight,
near the heaters, or in locations generating sooty smoke or steam as doing otherwise may
result in re or electric shock.
• Replace the battery only with the TOA BP-900A. Using a battery other than designated may
cause it to explode. When you discard batteries, please contact the local dealer from whom
you bought.
When the Unit is in Use
• Do not place heavy objects on the unit as this may cause it to fall or break which may result
in personal injury and/or property damage. In addition, the object itself may fall off and cause
injury and/or damage.
• Make sure that the volume control is set to minimum position before power is switched on.
Loud noise produced at high volume when power is switched on can impair hearing.
• Use the dedicated AC adapter AD-0910 for the unit. Note that the use of other adapter may
cause a re.
• When the unit is not in use for 10 days or more, or when the AC power is used for operating
the unit, be sure to take the batteries out of the unit because battery leakage may cause a
re, personal injury, or contamination of environment.
• If dust accumulates on the power supply plug or in the wall AC outlet, a re may result. Clean
it periodically. In addition, insert the plug in the wall outlet securely.
• Switch off the power, and unplug the power supply plug from the AC outlet for safety purposes
when cleaning or leaving the unit unused for 10 days or more. Doing otherwise may cause a
re or electric shock.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
CAUTION

2. GENERAL DESCRIPTION
The TS-821 and TS-921 Chairman units, and the TS-822 and TS-922 Delegate units are designed
for use in the TOA infrared conference systems.
These units provide wireless communication via the Infrared Transmitter/Receiver unit
connected to the Central unit.
Two types of dedicated microphones are made available for the Chairman and Delegate units as
optional products: the TS-923 standard type and the TS-924 long type.
3. FEATURES
• Since the Chairman units and the Delegate units require no wiring, they permit easy
installation based on a free layout.
• Up to 192 TS-821/822/921/922 units connectable to the TS-920RC.
• Up to 64 TS-821 and TS-822 units connectable to the TS-820/820RC.
• Both TS-921 and TS-922 units equipped with Voting and base/translation language selection
functions and TS-821 and TS-822 units designed primarily for speaking and monitoring can be
freely used. In the case of the TS-821 and TS-822 units, they can monitor the base language
only.
• Priority Speech key to take precedence over Delegate units.
• Status after priority speech, Priority Chime ON/OFF function, and priority speech key operation
mode settable by a DIP switch.
• The TS-921 is equipped with a voting function enabled by the DIP switch setting.
• Chairman and Delegate units microphones are attached via XLR connectors that permit easy
detachment for more space-saving convenience in storage.
• Two types of Chairman and Delegate units microphones are made available and freely
interchangeable: Standard type and Long type.
This is a class A product.
In a domestic environment this product may cause radio interference in which case the
user may be required to take adequate measures.

URL: https://www.toa.jp/
5. SPECIFICATION
Model No. TS-821 TS-822 TS-921 TS-922
Power Source 7.2 V DC (supplied from optional lithium-ion battery),
9 V DC (supplied from optional AC adapter)
Current Consumption Max. 390 mA
Infrared Emitter/Detector
Wavelength 870 nm (AM: Brightness modulation)
Modulation Method Frequency modulation
Carrier Frequency Transmission:
Audio channel 1: 7.35 MHz
Audio channel 2: 8.10 MHz
Audio channel 3: 8.55 MHz
Audio channel 4: 9.15 MHz
Control channel: 6.45 MHz
Reception:
Audio channel: 1.95 MHz
Transmission:
Audio channel 1: 7.35 MHz
Audio channel 2: 8.10 MHz
Audio channel 3: 8.55 MHz
Audio channel 4: 9.15 MHz
Control channel: 6.45 MHz
Reception:
Base language channel: 1.95 MHz
Translation language channel: 2.25 MHz
Covering Range 7 m or 22.97 ft (radius)
Input Microphone terminal: XLR-4-31 type
Output Monitor speaker: 8 Ω, 0.2 W
Headphones: ø3.5 mm mini jack (3P: monaural) x 2
LED Indicator Speech indicator, Power indicator Speech indicator, Power indicator,
Voting status indicators 1 – 3
Function Monitor volume control, Headphone volume control
Priority speech function
- Priority speech function -
-
Voting function
Monitor selector switch (MAIN/SUB)
Battery Life Approx. 10 hours
Operating Temperature 0 to 40 ºC (32 to 104 ºF)
Operating Humidity 90 %RH or less (no condensation)
Finish Case: PC resin, black
Speaker net: black, mat nish, paint
Dimensions 205.7 (w) x 70.3 (h) x 164.2 (d) mm (8.1" x 2.77" x 6.46")
Weight 525 g (1.16 lb)
Note: The design and specications are subject to change without notice for improvement.
• Optional products
Microphone: TS-923, TS-924 (Select either one.)
Lithium-ion battery: BP-900A
AC adapter: AD-0910
Traceability Information for Europe
Manufacturer:
TOA Corporation
7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo,
Japan
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg,
Germany
URL: https://www.toa.jp/
133-07-00134-00