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Bi-directional RS232 <=> RS485/RS422 interface converter for 2-wire and 4-wire, half & full-duplex applications, with an automatic TX enable circuit.
RS485/RS422 network is used where a device needs to send & receive serial data to multiple locations at long distance. This board converts any RS232 level signals to RS485/RS422 interface so that the serial data can be communicated bidirectionally at long distance.
the board has to be powered through any general purpose 9 to 24V AC/DC power supply making it suitable for any RS232 signal interfacing applications.