Y201-W is the Wi-Fi model in the Y201 mini DTU family. It bridges two serial ports to wireless networks and is designed for compact cabinets, instruments and controllers where adding another Ethernet cable is inconvenient. The built-in Web UI keeps setup practical in the field, which is a small mercy when the cabinet is already crowded.
Best Fit
- One or two serial devices that need Wi-Fi data access.
- Retrofit cabinets where wired LAN is unavailable or inconvenient.
- RS232 or RS485 devices that need TCP, UDP, HTTP, MQTT or Modbus TCP access.
Key Features
- Two serial ports, with RS232 or RS485 versions available.
- Wi-Fi AP, STA and AP+STA modes for commissioning and operation.
- Socket A and B for each serial port, suitable for multi-center data access.
- TCP server/client, UDP server/client, HTTP client and MQTT client.
- Modbus RTU to Modbus TCP conversion, heartbeat, auto reconnect and upgrade support.
Key Specifications
| Serial Ports | 2 ports, RS232 or RS485 depending on model |
| Wi-Fi Modes | AP / STA / AP+STA |
| Baud Rate | 1200 to 460800 bps |
| Power | 5 to 36 VDC, 55 mA @ 12 V typical |
| Size | 74 x 27 x 15.6 mm, excluding tabs and terminal |
Ordering Notes
Choose RS232 or RS485 according to the connected devices. If you need two serial channels with both Wi-Fi and RJ45 Ethernet in one larger enclosure, compare it with Y202-W.
