Modbus RTU Serial Device Server | RS232/RS485 to Ethernet Converter

• Dual Serial Ports: Equipped with one RS232 (DB9) and one RS485 port, both can operate independently.
• Modbus Gateway Function: Supports Modbus RTU to Modbus TCP conversion; works as Modbus master or slave; supports multi-master polling.
• Edge Computing & IoT-Ready: Built-in 400 MHz Cortex-M7 processor; handles up to 128/300 data points; supports MQTT and JSON reporting.
• Rich Protocol Support: Compatible with TCP/UDP (client/server), HTTP client, WebSocket, DHCP, DNS, and more.
• Secure & Easy Configuration: Supports SSL/TLS encryption (TCP, HTTP, MQTT modes); mutual certificate authentication; web UI for configuration and login protection.
• Industrial-Grade Design:

1. Operating temperature: –40 ~ +85 °C
2. Wide voltage input (5 ~ 36 V DC)
3. Metal housing, 2 kV magnetic isolation, hardware & software watchdog

Datasheet