TOA Electronics TS-820 Central Unit for Infrared Conference System

The TOA Electronics TS-820 is a top - notch central unit for infrared conference systems. It offers easy installation and flexible layout options. By simply connecting the TS - 905/907 IR Transmitter/Receiver, it can wirelessly control Chairman and Delegate Units via infrared signals. It has an installation confirmation function to quickly verify the connection status of all units. The built - in FBS (Feedback Suppression) effectively controls acoustic feedback. You can control the system from a PC. With an optional rack mounting bracket, it can fit into an EIA Standard equipment rack (4 unit size). Technical Specifications: - Power Source: 100 - 240 V AC, 50/60 Hz (using 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: Multiple audio and control channels with specific frequencies - Input: MIC and AUX inputs with defined dB and impedance - Output: LINE, REC, and HEADPHONE outputs with respective specifications - Connectable Units: Up to 64 Chairman/Delegate Units and up to 4 Infrared Transmitter/Receiver Units (more with a distributor) - Terminals: BNC jacks and selectable external control connection terminals - LED Indicators: Multiple indicators for various signals and statuses - Function Switches: For microphone settings, priority selection, and FBS - Operating Humidity: 90 %RH or less (no condensation) - Finish: Panel is a surface - treated steel plate, black, 30% gloss, paint - Weight: 2.7 kg (5.95 lb) - Accessory: AC adapter with specific cord lengths

Using the TOA Electronics TS - 820 is straightforward. First, connect the AC adapter to a power source within the 100 - 240 V AC, 50/60 Hz range. Then, connect the TS - 905/907 IR Transmitter/Receiver to the unit to enable wireless control of Chairman and Delegate Units. You can also use a PC to control the system. When setting up, make sure the operating humidity is 90% RH or less to avoid condensation. The LED indicators will show you the status of audio signals, data signals, and more. Use the function switches to set the number of open microphones, speech priority, and FBS. For maintenance, keep the unit clean. Wipe the surface - treated steel plate panel gently with a soft cloth. Check the AC adapter cords regularly for any signs of damage. If you need to mount it in an EIA Standard equipment rack, use the optional rack mounting bracket. Remember, the number of connectable units may vary depending on the type of transmitters/receivers you use, so plan your setup accordingly.