This is an RS485 device data acquisitor / IoT gateway designed for the industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. The module features RS485 and Ethernet ports, uses screw terminals for power input, and supports a 9~24V wide-range power supply. Rail-mount flame-retardant 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.

Useful link: 

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Features: 

1. Guide rail design: suitable for installation inside cabinets in the industrial field
2.  Small size: Compared with the ordinary serial server, the width is smaller and does not take up space
3. Terminal type power supply, 9~24V wide voltage input, with reverse power protection
4. Terminal RS485 interface, supports 32 slave devices, baud rate support 300~115200bps
5. Support MQTT gateway function.
6. Support JSON to Modbus RTU and 645 instrument protocol, support HTTP POST, and HTTP GET format to upload data.

Package Includes:

1 x Waveshare Industrial Serial Server RS485 to RJ45 Ethernet, TCP/IP to Serial Rail-Mount Support Common Ethernet port