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TOA Electronics TS-920RC Central Unit for Infrared Conference System
The TS-920RC is a Central Unit of the Infrared Conference System that allows easy installation and flexible layout. By connecting TS-905/907 IR Transmitter/Receiver, TS-920RC can control the Chairman and Delegate Units via wireless infrared signal. It features the installation confirmation function that allows the connection status of IR Transmitter/Receiver and Chairman/Delegate Units to be verified, and the voting function. The TS-920RC is also equipped with FBS (Feedback Suppression), enabling effective control of acoustic feedback. In addition the unit employs an MP3 recorder that makes it possible to record all conference contents to either a connected USB memory drive or internal memory. The system can be controlled by PC (*1). With the use of an optional rack mounting bracket, it can be mounted in an EIA Standard equipment rack (4 unit size).
Technical Specifications
Power Source
   100 - 240 V  AC, 50/60 Hz (use of the supplied AC adapter)
   Power Consumption
   72 W
   Current Consumption
   Max. 3 A DC  (when 24 V DC is supplied from the accessory AC adapter)
   Carrier Frequency
   Reception
   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
   Transmission:  Audio Channel: 1.95 MHz
   Translation  Language Channel: 2.25 MHz
   Input
   MIC 1 (Base  Language): -60 dB*, 600 , unbalanced, - 6.3mm phone jack (2P)
   MIC 2  (Translation Language): -60 dB*, 600 , unbalanced, - 6.3mm phone jack (2P)
   AUX 1 (Base  Language): -20 dB*, 10 k, unbalanced, - 6.3mm phone jack (2P)
   AUX 2  (Translation Language): -20 dB*, 10 k, unbalanced, - 6.3mm phone jack (2P)
   AUX 3 (Base  and Translation Language): -20 dB*, 10 k, unbalanced, - 6.3mm phone jack (2P)
   Output LINE
   -10 dB*, 10  k, unbalanced, - 6.3mm phone jack (2P)
   REC: -10  dB*, 10 k, unbalanced, RCA pin jack
   HEADPHONE:   3.5mm mini jack (3P: monaural)
   Equalizer Input/Output
   Input: -20  dB*, 10 k, unbalanced, RCA pin jack
   Output: -20  dB*, 10 k, unbalanced, RCA pin jack
   Number of Connectable Chairman/Delegate  Units
   192 units
   Number of Connectable Infrared  Transmitter/Receiver Units
   Up to 4  units (with the use of distributor, up to 16 units connectable when they are  all TS-905, and up to 12 units when they are all TS-907, or TS-905 and TS-907  are used in combination)
   Infrared Transmitter/Receiver I/O Terminal
   BNC jacks
   External Control Connection Terminal
   D-sub connector  (9 P, male) / USB-B selectable
   Record Switch
   Recording  start button, Recording stop button, Format button
   Recording  Ports USB-A (for USB memory  devices) and USB mini-B (for PCs)
   Recording Function
   Recordings  can be made to a USB memory device (**) or the internal memory. 
   Recording format
   MP3 (MPEG-1  Audio Layer-3), monaural
   Sampling frequency
   32 kHz, Bit  rate: 128 kbps
   Function  Switch No. of open  microphones setting switch: 1/2/3/4
   Mic-off setting switch
   TIME OUT  ON/OFF
   Speech priority selector switch
   FIRST  (First-in-first-out priority), LATEST (Last-in-first-out priority), FIRST:  FIXED NEXT: LATEST (Priority fixed for the first unit, and last-in-first-out  for all other subsequent units)
   FBS switch
   AUTO/OFF/EXT
   Operating Humidity
   90 %RH or  less (no condensation)
   Finish
   Panel:  Surface-treated steel plate, black, 30% gloss, paint
   Weight
   2.8 kg (5.95  lb)
   Accessory
 AC adapter  (Cord length: 1.8 m (5.91 ft) DC cord, and 2 m (6.56 ft) detachable AC cord)
 
             
          
 
      