RS232 to RS422 Serial Adapter DB9Pin Bidirectional Protocol Converter Filter Connector, Passive Serial Signal Transceiver for PLC, Inverter, Sensor Instrument Industrial LongDistance Data Transmissi

This highperformance passive RS232 to RS422 serial protocol converter performs bidirectional transparent signal conversion between unbalanced RS232 singleended signals and balanced differential RS422 signals. It draws working power directly from serial port handshake signals, eliminating the need for external power adapters or additional wiring, supporting true plugandplay operation for fast onsite deployment.

Builtin multistage filter circuit effectively suppresses electromagnetic interference, static electricity and transient surge noise, greatly improving signal stability in noisy industrial sites with motors, frequency converters and highvoltage equipment. It supports common baud rates from 300bps up to 115200bps, extending serial communication transmission distance to maximum 1200 meters under proper wiring conditions.

Equipped with standard DB9pin male interface and screw terminal block, it offers flexible connection options for different field cabling demands. No driver software installation is needed. Universally works with all devices equipped with standard RS232 or RS422 serial interfaces, covering PLC, industrial inverter, motion controller, testing instrument, digital meter, serial sensor and other automation hardware.

It is widely adopted in factory automation control, industrial onsite monitoring, equipment debugging, remote data collection, security system and building control projects. Compact and rugged smallformfactor housing saves installation space, suitable for cabinet mounting and desktop temporary test usage. Please note this adapter follows standard serial protocol compatibility, not restricted to specific brand hardware.