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).
| Name | Central Unit |
| Model | TS-820 |
| 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 Ω, unbalanced, Ø 6.3mm phone jack (2P) AUX: -20 dB*, 10 kΩ, unbalanced, Ø 6.3mm phone jack (2P) |
| Output | LINE: -10 dB*, 10 kΩ, unbalanced, Ø 6.3mm phone jack (2P) REC: -10 dB*, 10 kΩ, unbalanced, RCA pin jack HEADPHONE: Ø 3.5mm mini jack (3P: monaural) |
| Equalizer Input/Output | Input: -20 dB*, 10 kΩ, unbalanced, RCA pin jack Output: -20 dB*, 10 kΩ, unbalanced, RCA pin jack |
| 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 Temperature | 0 to +40 (32 ゜F to 104 ゜F) |
| 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)…1 |
| Option | Rack mounting bracket: MB-TS920 |
| Operating Software Features | Control up to 4 IP camera (Onvif) Control speech time Selection of Chairman or Delegate unit for speech request and approval Ability to map actual conference layout in software display |
