TOA Electronics TS-820 Central Unit for Infrared Conference System

TOA Electronics TS-820 Central Unit for Infrared Conference System

The TS-820is a Central Unit of the Infrared Conference System that allows easyinstallation and flexible layout. By connecting TS-905/907 IRTransmitter/Receiver, TS-820 can control the Chairman and Delegate Units viawireless infrared signal. It features the installation confirmation functionthat allows the connection status of IR Transmitter/Receiver and Chairman/DelegateUnits to be verified. The TS-820 is also equipped with FBS (FeedbackSuppression), enabling effective control of acoustic feedback. The system canbe controlled by PC (*1). With the use of an optional rack mounting bracket, itcan be mounted in an EIA Standard equipment rack (4 unit size).

TechnicalSpecifications

Power Source
100 – 240 VAC, 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
AudioChannel 1: 7.35 MHz
AudioChannel 2: 8.10 MHz
AudioChannel 3: 8.55 MHz
AudioChannel 4: 9.15 MHz
ControlChannel: 6.45 MHz
Transmission
AudioChannel: 1.95 MHz
Input
MIC: -60dB*, 600 , unbalanced, – 6.3mm phone jack (2P)
AUX: -20dB*, 10 k, unbalanced, – 6.3mm phone jack (2P)
Output
LINE: -10dB*, 10 k, unbalanced, – 6.3mm phone jack (2P)
REC: -10dB*, 10 k, unbalanced, RCA pin jack
HEADPHONE:3.5mm mini jack (3P: monaural)
Number of Connectable Chairman/DelegateUnits
64 units
Number of Connectable InfraredTransmitter/Receiver Units
Up to 4units (with the use of distributor, up to 16 units connectable when they areall TS-905, and up to 12 units when they are all TS-907, or TS-905 and TS-907are used in combination)
Infrared Transmitter/Receiver I/O Terminal
BNC jacks
External Control Connection Terminal
D-subconnector (9 P, male) / USB-B selectable
LED Indicator
Audio signalreceiving indicators 1 – 4 CH, Data signal receiving indicator,
Externalcontrol priority indicator, External control communication indicator,
Batteryindicator (flashes when a Chairman/Delegate unit’s battery nears completedischarge), Short-circuit indicator
FunctionSwitch No. of openmicrophones setting switch: 1/2/3/4
Mic-off setting switch
TIME OUTON/OFF
Speechpriority selector switch: FIRST (First-in-first-out priority), LATEST(Last-in-first-out priority), FIRST: FIXED NEXT: LATEST (Priority fixed for thefirst unit, and last-in-first-out for all other subsequent units)
FBS switch:AUTO/OFF/EXT
Operating Humidity
90 %RH orless (no condensation)
Finish
Panel:Surface-treated steel plate, black, 30% gloss, paint
Weight
2.7 kg (5.95lb)
Accessory
ACadapter (Cord length: 1.8 m (5.91 ft) DC cord, and 2 m (6.56 ft) detachable ACcord