2-Ch RS485 To RJ45 Ethernet Serial Server, Dual Channels RS485 Independent Operation, Dual Ethernet Ports, Rail-Mount Industrial Isolated Serial Module, Bi-Directional Transparent Transmission.   Features At A Glance   Specifications     2-CH RS485 TO ETH (B) 2-CH RS485 TO POE ETH (B) 2-CH RS485 + Common network port + Electrical isolation 2-CH RS485 + PoE network port + Electrical isolation Product Type Serial server, Modbus Gateway, MQTT Gateway Basic Function Bi-directional transparent data transmission between RS485 and Ethernet Communication interface RS485 port × 2, Ethernet port × 2 Power supply DC 5.5 power port, 6 ~ 45V DC screw terminal DC 5.5 power port, 6 ~ 45V DC screw terminal, or PoE port Isolation Protection Power isolation, Signal isolation COMMUNICATION Ethernet RJ45 RJ45 with PoE support, IEEE 802.3af compliant 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection Serial port Isolated RS485 (the 2 channels can receive and transmit independently at the same time) SERIAL SPECIFICATION Baudrate 300 ~ 115200 bps Parity bit none, odd, even, mark, space Data bit 5 ~ 9 bits Flow control N/A SOFTWARE Protocol ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS Configuration 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 ENVIRONMENT REQUIREMENT Operating temperature -40℃ ~ 85℃ Humidity range 5% ~ 95% relative humidity Dimensions L × W × H: 78.0 × 72.5 × 24.2 mm