Features: A RS485 device data collector/IoT gateway specially designed for industrial environment applications, with serial server, Modbus gateway, MQTT gateway, RS485 to JSON and other functions in one. With RS485 and Ethernet interfaces, terminal-type power supply access, support for 9~24V wide voltage power supply, rail-type flame-retardant design, small size, easy installation, cost-effective, suitable for data acquisition, Internet of Things gateways, security objects Networking and intelligent instrument monitoring and other fields. Specification: Communication interface: RS485, terminal type, support 32 slave devices Power supply: terminal type, 9~24V DC Product size L x W x H: 87 x 36 x 59mm Communication Interface: Ethernet: 10/100M adaptive RJ45 interface, 2KV surge protection Serial port: RS485x1: RXD, TXD, GND Baud rate: 300~115200bps Check Digits: None, Odd, Even, Mark, Space Data bits: 5~9 bits Flow control: no flow control Protocol: ETHERNET, IP, TCP, UDP, HTTP, , ICMP, DHCP, DNS Configuration : host computer configuration, WEB browser, device management function library Communication mode: TCP/IP direct communication, virtual serial port mode Working mode: TCP server, TCP client (the TCP server also coexists), UDP, UDP multicast Operating temperature: -40~85 Storage temperature: -45C~165C Humidity range: 5%~95% relative humidity Material: ABS colour: White Package Contents: 3 x RS485 serial server 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.