Two independent serial ports; choose dual RS232, dual RS485 or one of each by SKU
Y202-R 2-Port RS232/RS485 to Ethernet Gateway
2 Ports Serial to Ethernet Converter
Y202-R connects two independent RS232/RS485 serial buses to 10/100 Ethernet, with Modbus RTU-to-TCP conversion and two sockets per port for SCADA and cloud access.

Key Features
10/100Base-T RJ45 uplink with static IP or DHCP and Socket A/B on each serial port
TCP, UDP, HTTP and MQTT data paths with Modbus RTU-to-TCP conversion and NET/UART heartbeats
DIN-rail enclosure, 9–36 VDC input, Web UI configuration and HTTP OTA maintenance
Specifications
Power Supply
- Voltage
- DC 9~36V
- Input Style
- Terminal input, optional DC barrel input
- Protection
- Industrial EMC design, dual watchdog
Serial Interfaces
- Ports
- 2
- Type
- 2 x RS232 / RS485 depending on SKU
- Sku Examples
- 2H = dual RS232, 4H = dual RS485, 6H = 1 x RS232 + 1 x RS485
Ethernet
- Interface
- 10/100Base-T RJ45
- Ip Mode
- Static IP / DHCP
- Default Address
- 192.168.10.8
- Maintenance
- Web UI, remote AT, HTTP OTA
Software
- Protocols
- TCP / UDP / HTTP / MQTT
- Gateway Function
- Modbus RTU to Modbus TCP
- Value Added Functions
- Registration packet, NET/UART heartbeat, reconnect logic
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