The voting controller or extended control device is the core part of the registration and voting system. It is controlled and managed by an advanced microcomputer to complete the meeting voting and the adjustment of the corresponding parameters, and provide 24V safe DC power supply, voting management, and data output for the equipment. The host adopts high-quality circuit boards and components and increases the area of ​​the ground conductor, and the anti-static capacity can reach 12000V.

The host can control up to 1800 devices. 3 groups of 6 output ports can connect up to 180 representative units. Depending on the connected representative units, functions such as sign-in and voting can be realized. Each channel only needs one dedicated cable to connect to the host, and the units are connected hand in hand. The design solves the cumbersome wiring problem of the staff. Plug and play, support hot insertion with power on, and representative units can be added or removed during the meeting without affecting the meeting. Each group of connection ends has a protection circuit to prevent overload and short circuit.