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

This passive RS232 to RS422 fullduplex serial converter enables twoway signal conversion between RS232 and RS422 interfaces. It does not need an external power adapter, getting tiny working power from serial signal lines to simplify onsite wiring work. Fullduplex FDX design allows simultaneous transmit and receive data, keeping complete serial communication flow. RS422 standard supports longer transmission distance and better antielectromagnetic interference than native RS232, perfect for industrial control equipment, PLC controllers, serial measuring instruments, accesscontrol systems and industrial debugging tasks. Compact plugin structure allows quick installation, no firmware modification or software configuration needed. Please note stable performance depends on adequate signal output voltage from your connected serial devices. Serial cables are not included in package. Do not connect highvoltage signals to this adapter to avoid burning internal circuits. It is only for TTLlevel serial signal conversion, cannot be used for other signal types.