RS232 to RS422 Converter, Bidirectional 422232 Serial Adapter, FDX Full Duplex Passive RS232RS422 Adapter No External Power, DB9 to Terminal Block for PLC, HMI, CNC Industrial Serial Communication

This passive RS232 to RS422 serial converter achieves seamless bidirectional signal conversion between RS232 and RS422 interfaces, drawing operating power directly from the RS232 serial port without external power supply. Working under FDX fullduplex mode, it allows simultaneous data transmission and reception, ensuring stable pointtopoint serial data interaction. It works well with multiple brands of PLC, CNC machine tools, HMI touch panels, servo controllers, frequency converters and other industrial automation hardware. It supports baud rates from 300bps to 115.2Kbps. Adopting RS422 differential signal technology, it greatly resists electromagnetic interference and supports longdistance data transmission in complex industrial site environments. Standard DB9 female connector connects to host serial port, while screw terminal block provides secure and convenient wiring for field deployment. No extra software or driver is required, just plugandplay. Smallsize lightweight structure saves installation space. It is widely applied in equipment debugging, industrial control system transformation, serial signal extension and other industrialscene projects.