RS485 to RJ45 Ethernet, TCP/IP to serial, Rail-mount support

The Waveshare RS485-to-Ethernet module is a reliable industrial solution for connecting RS485 devices to a network. It features a standard Ethernet RJ45 port for communication and is powered via a screw terminal with 9 to 24 V DC input. With support for protocols such as TCP/IP, Modbus and MQTT, the module is highly versatile for automation, monitoring and data logging. In addition, RS485 data can be converted to JSON, making integration into modern systems straightforward. Its robust DIN-rail design ensures easy and secure installation in control cabinets and industrial environments.

Key features

• Converts RS485 signals to Ethernet via a standard RJ45 port
• Supports TCP server, TCP client, UDP and UDP multicast modes
• Functions as a Modbus RTU ↔ Modbus TCP gateway and MQTT gateway
• RS485-to-JSON conversion for modern data processing
• Powered via screw terminal (9–24 V DC)
• Industrial DIN-rail housing for easy installation
• Web-based configuration with DHCP and DNS support

Technical specifications

• Interfaces: RS485 via screw terminal, Ethernet via standard RJ45
• Power supply: 9–24 V DC
• Protocols: TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS
• Baudrate: 300–115200 bps, 5–9 data bits, configurable parity
• Supported functions: Modbus RTU ↔ Modbus TCP, MQTT gateway, JSON conversion
• Mounting: DIN-rail housing, suitable for industrial environments