Y202-R is a dual-port Ethernet DTU for bringing two serial devices onto a LAN or SCADA network. Each serial channel can run its own Socket A and Socket B, so one device can report to more than one system without adding another converter.
Best Fit
- Small control cabinets with two serial devices.
- PLC + meter, relay + controller, or mixed RS232/RS485 retrofit work.
- Modbus RTU devices that need reliable Modbus TCP access.
Key Features
- 2 independent serial channels, available as RS232, RS485 or mixed variants.
- 10/100Base-T RJ45 uplink with static IP or DHCP.
- Socket A and B per port for main-link and backup-link use.
- TCP, UDP, HTTP, MQTT and Modbus RTU to Modbus TCP conversion.
- Browser configuration, remote AT, heartbeat, reconnect logic and HTTP OTA.
Key Specifications
| Serial Ports | 2 x RS232 / RS485, selectable by SKU |
| Ethernet | 10/100Base-T RJ45 |
| Processor | Dual-core 240 MHz MCU, RTOS scheduler, dual watchdogs |
| Power | 9 to 36 VDC terminal input, optional DC barrel input |
| Mounting | DIN-rail industrial enclosure |
Selection Tip
Y202-R is the practical middle option: more useful than a single-port converter, but not as wide as a 4-port or 8-port unit. If you already know the cabinet may grow, leave yourself room and consider Y204-R.
