The TS-921 is a Chairman unit of the Infrared Conference system. Since the system is cordless, it can be easily installed and removed. It can be operated on either the AD-0910 AC adapter or the BP-920, BP-900A lithium-ion battery.Two types of dedicated microphones are made available for the TS-921 as optional products: the TS-923, TS-903 standard type and the TS-924, TS-904 long type.
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: Base language channel: 1.95 MHz
Translation language channel: 2.25 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, Voting status indicators 1 -3, Power indicator