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TOA Chairman Unit in Bangladesh | TS-821

TOA Chairman Unit in Bangladesh | TS-821

The TS-821 is a Chairman unit of the Infrared Conference system. From Since this system is cordless; it can be easily installed and removed. The Chairman unit features a priority speech key which; Also it allows it to take precedence over the TS-822 Delegate units when speaking. It can be operated, on either the AD-0910 AC adapter; or the BP-920, BP-900A lithium-ion battery. It is equipped with a remaining battery indicator. Two types of dedicated microphones are made available for the TS-821 as optional products: the TS-923, TS-903 standard type and the TS-924, TS-904 long type.


Power SourceSupplied from optional lithium-ion battery or AC adapter
Current ConsumptionMax. 390 mA

Infrared Emitter/Detector

Wavelength870 nm (AM: Brightness modulation)
Modulation MethodFrequency modulation
Carrier FrequencyTransmission: Audio channel 1: 7.35 MHz
Audio channel 2: 8.10 MHz
Audio channel 3: 8.55 MHz
Au-dio channel 4: 9.15 MHz
Control channel: 6.45 MHz
Reception: Audio channel: 1.95 MHz
Covering Range7 m (22.97 ft) (radius)
InputMicrophone terminal: XLR-4-31 type
OutputMonitor speaker: 8 Ω, 0.2 W
Headphone: φ3.5 mm mini Jack (3P: monaural) × 2
LED IndicatorSpeech indicator, Power indicator
FunctionMonitor volume control, Headphone volume control, Priority speech function
Battery LifeApprox. 10 hours
Operating Temperature0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity90 %RH or less (no condensation)
FinishCase: PC resin, black
Speaker net: Steel plate, black, mat finish, paint
Dimensions205.7 (W) × 70.3 (H) × 164.2 (D) mm (8.1″ × 2.77″ × 6.46″)
Weight525 g (1.16 lb)
OptionMicrophone: TS-923, TS-903, TS-924, TS-904 (Select either one.)
Lithium-ion battery: BP-920, BP-900A
AC adapter: AD-0910
Conference System | TOA Chairman Unit in Bangladesh
Toa Conference System in Bangladesh
Toa Conference System in Bangladesh

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