HESC-T-039 is an RS-485 bus splitting hub that uses an internal microprocessor (non-stop working) and is specially designed to solve the requirements of RS-485 large systems in complex electromagnetic field environments. This product supports transmission rates up to 115.2 Kbps. In order to ensure the safety and reliability of data communication, the RS-485 interface uses photoelectric isolation technology to prevent lightning surges from being introduced into converters and equipment. The built-in photoelectric isolator and 1,500W surge protection circuit can provide an isolation voltage of 2,500V, which can effectively prevent lightning strikes and common ground interference. Power is supplied by an external switch-mode power supply.

In the RS-485 working mode, the used discrimination circuit can automatically sense the direction of the data flow and switch the enable control circuit to easily solve the problem of RS-485 transceiver conversion delay. The RS-485 interface has a transmission distance of 5km and stable performance. It is widely used in highway toll systems, road monitoring systems and power collection systems.

HESC-T-039 RS-485 hub provides star RS-485 bus connection. Users can easily improve the RS-485 bus structure, divide network segments, and improve communication reliability. When a lightning strike or equipment failure occurs, the network segment in question will be isolated to ensure the normal operation of other network segments.