Overview RS232/485/422 to RJ45 Ethernet Module, 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. Specifications Product type--- Serial server, Modbus Gateway, MQTT Gateway Primary function--- Bi-directional transparent data transmission between RS232/485/422 and Ethernet Communication interface--- RS232 port × 1; RS485 port × 1; RS422 port × 1; Ethernet port × 1 Power supply--- DC power port, 6 ~ 36V DC screw terminal Isolation protection--- Power isolation, Signal isolation Communication interface Ethernet--- Common network port, 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection Serial port--- Isolated RS232/485/422 Serial parameters Baud rate--- 300 ~ 115200 bps Parity bit--- none, odd, even, mark, space Data bits--- 5 ~ 9 bits Flow Control--- N/A Software Protocol--- ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS Configuration method--- host, web browser, device management functions library Communication method--- TCP/IP direct communication, VCOM Operating mode--- TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast Other Operating temperature--- -40? ~ 85? Humidity range--- 5% ~ 95% relative humidity Dimensions--- L × W × H: 88.7 × 72.5 × 24.2 mm Package Content 1. RS232/485/422 TO ETH (B) x1 Development Resource https://www.waveshare.com/wiki/RS232/485/422_TO_POE_ETH_(B)Rail-mount RS232/485/422 serial server, easy to combine multi rail-mounted serial server together, more freely. Aluminium alloy enclosure with sand blasting and anodic oxidation, solid and durable, fashion and good hand feeling. RS232/485/422 device data acquisitor / IoT gateway designed for industrial environment, Onboard Multiple Protection circuit, Safe And Stable. Support Multi hosts roll-polling, user-defined heartbeat/registration packet, NTP protocol, Multi configuration methods. RS232/485/422 serial server, support Modbus Gateway, suitable for Modbus networking upgrade, can be used with specific configuration software, support TCP server / TCP client / UDP mode / UDP multicast multi communication modes, support MQTT/JSON to Modbus, more flexible conversion between different protocols. Industrial isolated RS232/485/422 to RJ45 ethernet converter module, features RS232/485/422 and Ethernet port, di-directional transparent data transmission between RS232/485/422 and Ethernet.