UT-203A Mini RS-232 to RS-485/RS-422 Converter (Industrial Serial Communication Adapter)

The UT-203A Mini RS-232 to RS-485/RS-422 Converter is an industrial-grade serial communication converter designed to convert standard RS-232 signals into RS-485 or RS-422 differential communication. It enables reliable long-distance data transmission of up to 1200 meters, offering excellent noise immunity and stable communication in industrial environments.

Powered directly from the RS-232 interface, the converter requires no external power supply, simplifying installation. It features automatic transmit/receive switching for RS-485 communication and supports both half-duplex RS-485 and full-duplex RS-422, making it ideal for PLCs, Modbus RTU networks, industrial automation, CNC machines, data acquisition systems, and embedded serial communication.

Key Features -

• Converts RS-232 to RS-485 and RS-422 communication

• Supports transmission distances up to 1200 meters

• Self-powered from the RS-232 serial port

• No external power supply required

• Automatic transmit and receive switching for RS-485

• Supports half-duplex RS-485 and full-duplex RS-422

• Excellent noise immunity and anti-interference performance

• Industrial-grade stable operation

• Compact and lightweight housing

• Easy terminal block wiring

Specifications -

• Product type - RS-232 to RS-485/RS-422 Converter

• Model - UT-203A

• Input interface - RS-232

• Output interfaces - RS-485 and RS-422

• Communication modes - Half-Duplex RS-485, Full-Duplex RS-422

• Maximum transmission distance - Up to 1200m

• Power supply - Self-Powered from RS-232 Port

• Signal type - Differential Serial Communication

• Mounting type - External Converter Module

• Application - Industrial Serial Communication and Automation

Applications -

• PLC communication systems

• Modbus RTU networks

• Industrial automation equipment

• CNC machines

• Building automation systems

• Data acquisition systems

• Industrial sensors and controllers

• Embedded serial communication

• SCADA systems

• Laboratory and test equipment