Y201-R is the Ethernet model in the Y201 mini DTU family. It connects one serial device to an IP network through RJ45 Ethernet and is a clean choice for PLCs, meters, controllers and small instruments that only need one RS232, RS485 or TTL channel online.
Best Fit
- Single serial device retrofit inside a small cabinet.
- Energy metering, building control, industrial data collection and device maintenance.
- Projects that need a small Ethernet DTU instead of a multi-port serial server.
Key Features
- RS485, RS232 or TTL variant options.
- Dual Socket channels A and B for multi-center access.
- TCP, UDP, HTTP client, MQTT client and Modbus RTU to TCP conversion.
- Registration packets, heartbeat packets and automatic reconnect.
- Browser-based configuration through the built-in Web UI.
Key Specifications
| Serial Options | RS485 / RS232 / TTL, depending on SKU |
| Network | RJ45 Ethernet |
| Processor | Dual-core 240 MHz MCU |
| Power | 5 to 36 VDC |
| Configuration | Web UI in a browser |
Selection Tip
Use Y201-R when one serial device needs Ethernet. If the cabinet has two devices, Y202-R is usually the cleaner choice; for four or eight devices, choose Y204-R or Y208-R.
