Passive RS232 to RS422 FDX Full Duplex Serial Converter Adapter, Bidirectional RS232RS422 Signal Switch Without External Power, Compact Serial Adapter for PLC, Industrial Meters Controller Field Ser

This passive RS232 to RS422 fullduplex serial converter realizes bidirectional signal conversion between RS232 and RS422 serial ports without external power adapters. It harvests tiny operating power directly from serial communication signal lines, simplifying fieldside wiring layouts. FDX fullduplex mode allows simultaneous sending and receiving data to maintain complete serial communication flow. The RS422 differential signal provides longer transmission distance and excellent antielectromagneticinterference capability compared with RS232, making it ideal for industrial control PLC, measuring meters, accesscontrol terminals and serial device debugging projects. Compact plugin structure enables quick installation with zero firmware modification. As a passive converter, stable communication performance depends on sufficient signal voltage output from your connected serial host devices. Serial connecting cables are not included in package. Avoid inputting incompatible highvoltage signals, otherwise internal circuit components will suffer permanent burnout damage.