This is a RS232 device data acquisitor / IoT gateway designed for industrial environment.
It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS232 to JSON, etc.
The module features RS232 and Ethernet port(POE function is optional), uses screw terminals for power input.
Rail-mount case design, small in size, easy to install. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring...