Y202-R 2-Port Serial to Ethernet Converter
Y202-R is a dual-port Ethernet DTU for bringing two serial devices onto a LAN or SCADA network.
- Channels
- 2 serial ports; Socket A and B per port
- Interfaces
- 2 × RS232 / RS485 (SKU-dependent); 10/100Base-T RJ45
- Protocols
- TCP, UDP, HTTP, MQTT; Modbus RTU-to-TCP gateway
- Power supply
- 9–36 VDC terminal input; optional DC barrel
Price for the selected configuration.
Shipping & Tax: Shipping is quoted separately and paid before dispatch. Import duties, taxes, customs fees and destination charges are paid by the customer.
Overview
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.
Typical applications
- 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.
How it works & selection
Selection notes
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.
Technical specifications
| Channels | 2 serial ports; Socket A and B per port |
|---|---|
| Interfaces | 2 × RS232 / RS485 (SKU-dependent); 10/100Base-T RJ45 |
| Protocols | TCP, UDP, HTTP, MQTT; Modbus RTU-to-TCP gateway |
| Power supply | 9–36 VDC terminal input; optional DC barrel |
Signals and communication
| Product type / topology | 2-port serial-to-Ethernet DTU |
|---|---|
| Channels | 2 serial ports; Socket A and B per port |
| System configuration | 2 RS485, 2 RS232, or 1 RS232 + 1 RS485 variants |
| Interfaces | 2 × RS232 / RS485 (SKU-dependent); 10/100Base-T RJ45 |
| Protocols | TCP, UDP, HTTP, MQTT; Modbus RTU-to-TCP gateway |
| Functions | Web UI, remote AT, HTTP OTA, registration packet, heartbeat, and automatic reconnect. |
Electrical
| Power supply | 9–36 VDC terminal input; optional DC barrel |
|---|
Mechanical and environment
| Mounting | DIN-rail industrial enclosure |
|---|---|
| Protection | Industrial EMC design; dual watchdog |
Package & resources
Package contents
1 x Y202-R DTU 1 x DB9 breakout for COM1 1 x pluggable terminal for COM2 and power DIN-rail clip, quick-start card, warranty information Optional: `12 V` power adapter, USB console cable
