1. Basic function: realize the bi-directional transparent transmission function of serial port and Ethernet interface
2. Ethernet: common network port
3. Isolation protection: without isolation
4. Serial port: TTL
5. Power supply: DC 3.3V/5V
6. Power supply method: row of pins / pads
7. Application scenario: can be used as serial server, Modbus gateway, MQTT gateway, suitable for data acquisition, IoT gateway, security IoT and smart meter monitoring, etc.
8. Size: about 34 x 23 x 11.5mm

Serial port parameters:
1. Baud rate: 300-115200bps
2. Data bits: 5-9 bits
3. Flow control: with flow control

Software:
1. Protocol: ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS
2. Configuration mode: host computer configuration, WEB browser, device management function library
3. Communication mode: TCP/IP direct communication, virtual serial port mode
4. Data transmission mode: TCP Serve