TOA TS-821 Infrared Chairperson Station for TS-820

The TS-821 is a wireless Chairman unit that is part of the Infrared Conference system. Designed for ease of installation and portability, the cordless nature of the system allows for effortless setup and removal. The Chairman unit is equipped with a priority speech key that enables it to take precedence over the TS-822 Delegate units during speaking events. The unit can operate using either the AD-0910 AC adapter or the BP-900A lithium-ion battery, which is equipped with a remaining battery indicator for monitoring battery life. Two optional dedicated microphones are available for the TS-821: the TS-923/TS-903 standard type and the TS-924/TS-904 long type.

TOA TS-821 Features:

• Chairman unit for basic discussion
• Priority button
• 0.2W monitor speaker
• 2 headphone jacks with individual volume control
• Approx. 10 hours continuous operation with the
• use of optional rechargeable lithium-ion battery

TOA TS-821 Specifications:

• 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
• Covering Range:7 m (22.97 ft) radius
• Input: Microphone terminal: XLR-4-31 type
• Output:
  • Monitor speaker: 8 Ω, 0.2 W
  • Headphone: φ3.5 mm mini Jack (3P:monaural) (2)
• LED Indicator: Speech indicator, Power indicator
• Function: Monitor volume control, Headphone volume control, Priority speech function
• Battery Life: Approx. 10 hours
• Operating Temperature: 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
• Operating Humidity: 90 %RH or less (no condensation)
• Finish:
  • Case: PC resin, black
  • Speaker Net: Black, matte finish, paint
• Dimensions: 205.7 (W) × 70.3 (H) × 164.2 (D) mm (8.1 × 2.77 × 6.46 in)
• Weight: 525 g (1.16 lb)
• Option:
  • Microphone: TS-923, TS-903, TS-924, TS-904 (Select either one.)
  • Lithium-ion Battery: BP-900A
  • AC adapter: AD-0910