WAVESHARE 4-Ch RS485 To RJ45 Ethernet Serial Server, 4 Channels RS485 Independent Operation, Rail-mount Industrial Isolated Serial Module, Common Network Port, PoE Ethernet Port

1. Basic Functions: Provides bidirectional transparent RS485-to-Ethernet conversion
2. Communication Interfaces: 4x RS485, 1x Ethernet port
3. Power Supply: Standard Ethernet port: DC 6–45 V via terminal blocks; PoE Ethernet port: DC 6–45 V via terminal blocks or PoE
4. Isolation Protection: Power isolation, signal isolation protection
5. Communication Interfaces:
- Ethernet: Standard Ethernet port / PoE port, supports the IEEE 802.3af standard, 10/100M auto-negotiation RJ45 port, 2 kV surge protection
- Serial Port: Isolated RS485 (4 channels can operate simultaneously and independently for transmission and reception)
6. Operating Temperature: -40 to 85 degrees Celsius
7. Humidity Range: 5%–95% relative humidity
8. Dimensions: Approx. 9.1 x 6.45 x 2.42 cm

Serial Port Parameters:
1. Baud Rate: 300–115,200 bps
2. Parity: None, Odd, Even, Mark, Space
3. Data Bits: 5–9 bits
4. Flow Control: No flow control

Software:
1. Protocols: Ethernet, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS
2. Configuration Methods: Host computer configuration, web browser, device management library
3. Communication Methods: Direct TCP/IP communication, virtual serial port mode
4. Operating Modes: TCP server, TCP client (with TCP server mode coexisting), UDP mode, UDP multicast

Features:
1. Four RS485 channels can operate simultaneously without interfering with one another, enabling more efficient data transmission
2. Combines multiple functions—including serial server, Modbus gateway, MQTT gateway, and RS485-to-JSON conversion—allowing this module to play a vital role in various network environments
3. The power interface uses terminal block-style power connection, ensuring a stable power supply
4. The housing is designed for both wall-mount and DIN-rail mounting, facilitating easy installation and enabling rapid deployment and expansion of the device