Features This is a 2-ch RS485 device data acquisitor / IoT gateway designed for the industrial environment. Dual RS485 can work simultaneously without interfering with each other. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, and network switch. The module features dual RS485 and dual Ethernet ports. The case with rail-mount support, is small in size, easy to install, and cost-effective. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring... Specifications 1. 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 Isolation Protection: Power isolation, Signal isolation 2. Communication RJ45 Ethernet: 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) 3. Serial Specification Baudrate: 300 ~ 115200 bps Parity Bit: none, odd, even, mark, space Data Bit : 5 ~ 9 bits Flow Control:N/A 4. 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 5. Environment requirement Operating temperature: -40? ~ 85? Humidity range : 5% ~ 95% relative humidity Dimensions : L × W × H: 78.0 × 72.5 × 24.2 mm Package Content 2-CH RS485 TO ETH (B) x1Multi configuration methods, supports Web browser configuration, obtaining dynamic IP via DHCP, DNS protocol connected domain server address. Multi communication modes, supports TCP server / TCP client / UDP multicast / UDP mode. Multi hosts roll-polling support,different network devices will be identified and responsed respectively, no more crosstalk issue while communicating with multi network devices. Rail-mount support. Modbus gateway support, suitable for Modbus networking upgrade, Can be used with specific configuration software. MQTT/JSON to Modbus,more flexible conversion between different protocols. Support Ethernet Port Cascade, Onboard 2-ch Ethernet Ports for communication and cascade. Either one can be used for dual serial server network communication, while the other one can be used for cascading or communication with other devices. 2-Ch RS485 To Ethernet, bi-directional transparent data transmission between RS485 and Ethernet. Dual RS485 can work simultaneously without interfering with each other.