1. Product type: serial server, Modbus gateway, MQTT gateway 2. Basic functions: bidirectional transparent data transmission between RS232 and Ethernet 3. Communication interface: RS232 port x 1, Ethernet port x 1 4. Power supply: DC 6 ~ 36V 5. Ethernet: ordinary network port PoE network port; support IEEE 802.3af standard; 10 / 100M auto-negotiation RJ45 connector, 2KV surge protection 6. Baud rate: 300 ~ 115200 bps 7. Parity bit: None, Odd, Even, Mark, Space 8. Data bits: 5 ~ 9 bits 9. Flow Control: N/A 10. Protocol: Ethernet, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS 11. Configuration: host, web browser, device management function library 12. Communication method: TCP/IP direct communication, VCOM 13. Operation mode: TCP server, TCP client (coexist with TCP server), UDP, UDP multicast 14. Dimensions: 87x36x59mm 15. Easily combine multiple DIN rail serial servers, more freedom 16. Two-way transparent data transmission between RS232 and Ethernet 17. Suitable for Modbus Gridding upgrade, can be used with specific configuration software 18. MQTT/JSON to Modbus, more flexible conversion between different protocols 19. Multi-host polling support, different network devices will be recognized and responded separately, and there will be no crosstalk problems when communicating with multiple network devices 20. Multi-host polling support, easy cloud communication and device identification 21. NTP protocol support, obtain network time information for serial output or data upload 22. Multiple configuration methods, support web browser configuration, obtain dynamic IP through DHCP, and connect to domain server address through DNS protocol