Features This is a RS232/485/422 device data acquisitor / IoT gateway designed for industrial environment. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. The module features RS232/485/422 and Ethernet port with PoE function, uses DC port (outer diameter: 5.5mm, inner diameter: 21mm) and screw terminals for power input. Model:RS232/485/422 TO POE ETH (B) Product type: Serial server, Modbus gateway, MQTT gateway Primary function:Realize the bidirectional transparent transmission function of RS232/485/422 to Ethernet Communication interface:RS232/485/422 x 1, Ethernet port x 1 Power supply:Screw terminal DC 6~36V or PoE network port Isolation protection:Power isolation, signal isolation protection Communication interface Ethernet: PoE Ethernet port, support IEEE 802.3af standard 10 / 100M self-adaptive RJ45 interface, 2KV surge protection Serial port: Isolated RS232/485/422 Serial parameters Baud rate: 300 ~ 115200 bps Parity bit: none, odd parity, even parity, mark, space Data bits: 5 ~ 9 bits Flow Control: no flow control Software Protocol: ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS Configuration method: PC configuration, WEB browser, device management function library Communication method: TCP/IP direct communication, virtual serial port mode Operating mode: TCP server, TCP client (TCP server also coexist), UDP, UDP multicast Other Operating temperature: -40? ~ 85? Humidity range: 5% ~ 95% relative humidity Dimensions : L x W x H: 88.7 x 64.5 x 24.2 mm How-to-use document/User Manual://bit.ly/3AGuDCQ Package Content RS232/485/422 TO POE ETH (B) x1