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21.2. Infrared Chairman Unit TS-921
Model No. 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: 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, Voting status indicators 1 – 3, Power indicator
Function Monitor volume control
Headphone volume control
Priority speech function
Voting function
Monitor selector switch (MAIN/SUB)
Monitor volume control
Headphone volume control
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 finish, 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 specifications are subject to change without notice for improvement.
