Designed for industrial applications with multiple functions including serial server, Modbus gateway, and MQTT gateway. Supports RS232/485/422 and Ethernet interfaces for versatile connectivity. Compact size with DIN rail-mounted housing for easy installation. High cost-effectiveness suitable for data acquisition and IoT applications. Baud rate ranging from 300 to 115200 bps, with various data bits and check digit options combined for flexibility. This RS232/485/422 data acquisition unit/IoT gateway is specifically designed for industrial applications, integrating multiple functions such as serial server, Modbus gateway, MQTT gateway, and RS485 to JSON converter. It features RS232/485/422 and Ethernet interfaces (Without PoE, a 5.5mm outer diameter and 21mm inner diameter power connector with terminal block power input, a DIN rail-mounted housing, compact size, easy installation, and high cost-effectiveness. It is suitable for data acquisition, IoT gateways, security IoT, and smart meter monitoring. Color: As Shown Material: plastic Package Contents: 1*RS232/485/422 To RJ45 Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.