TOA Electronics TS-820 Central Unit for Infrared Conference System
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TOA Electronics TS-820 Central Unit for Infrared Conference System
The TS-820 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-820 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. The TS-820 is also equipped with FBS (Feedback Suppression), enabling effective control of acoustic feedback. 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
Input
MIC: -60 dB*, 600 , unbalanced, - 6.3mm phone jack (2P)
AUX: -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)
Number of Connectable Chairman/Delegate Units
64 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
LED Indicator
Audio signal receiving indicators 1 - 4 CH, Data signal receiving indicator,
External control priority indicator, External control communication indicator,
Battery indicator (flashes when a Chairman/Delegate unit's battery nears complete discharge), Short-circuit indicator
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
2.7 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
