Waveshare RS232 RS485 To RJ45 Ethernet Serial Server Features: 1. A dual serial port device data collectorIoT gateway designed for industrial environments. One RS232 and one RS485 can work simultaneously using one network cable without interfering with each other. 2. It integrates multiple functions, including serial port server, Modbus gateway, MQTT gateway, RS232 and RS485 to JSON, etc. 3. The other Ethernet port can be used as a network switch or cascade, and the PoE function can be equipped with dual power supply. 4. The Ethernet port provides two power supply methods: DC port (outer diameter 5.5mm, inner diameter 2.1mm) and screw terminal. 5. The chassis adopts guide rail support, which is small in size, easy to install and cost-effective. 6. Suitable for data collection, IoT gateway, security IoT, smart instrument monitoring and other applications. 7. This product is a PoE receiving device (PD) and needs to be connected to a PoE power supply and obtain power from the PSE device to work properly. Product parameters: 1. Product type: serial server, Modbus gateway, MQTT gateway 2. Basic functions: two-way transparent transmission of data between RS232, RS485 and Ethernet 3. Communication interface: RS232 port × 1, RS485 port × 1, Ethernet port × 2 4. Power supply: TO ETH (B): DC 5.5 power interface, 6~45V DC screw terminal TO POE ETH (B): DC 5.5 power interface, 6~45V DC screw terminal, or PoE interface 5. Isolation protection: power isolation, signal isolation 6. Ethernet: TO ETH (B)：RJ45 TO POE ETH (B): RJ45 with PoE support, IEEE 802.3af compliant 10100M self-negotiating RJ45 connector, 2KV surge protection 7. Serial port: Isolated RS232 and RS485 (2 channels can receive and send independently at the same time) 8. Baud rate: 300-115200 bps 9. Check digit: none, odd, even, mark, space 10. Data bits: 5-9 bits 11. Flow control: Not applicable 12. Protocol: Ethernet, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS 13. Configuration: host,