RS-232, RS-422 and RS-485 Communications Pinouts Diagrams

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Recently i was working with some kind of 3rd party device which support communication only throught Serial Port. So i was so much confused and i was not able to differentiate between Serial Pins. Then i read complete RS 232,422 and 485 Guide. Then i came to know about serial communications and pinouts which could be helpful.

 

RS-232 (2 Wire communications) (Distance upto 15  meters) (4 Device Supported)

RS-422 (4 Wire Communications) (Distance upto 1200 Meters) (4 Device Supported)

Rs-485 (2 Wire Communications) (Distance upto 1200 Meters) (32 Device Supported)

Detailed Description is provided in the image below:-

Serial Communication Characteristics RS 232, RS 422 and RS 485 Communications Pinouts Diagrams

Above Given Configurations are provided from my studies from different materials.

RS-485 Connection Wiring Diagram:-

convert RS 485 4 wire to 2 wire RS 232, RS 422 and RS 485 Communications Pinouts Diagrams

RS-422 Serial Communication Wiring Diagram:-

RS 422 Serial Communication RS 232, RS 422 and RS 485 Communications Pinouts Diagrams

 

RS-485, RS-422 Pinouts:-

rs422 485 pinout RS 232, RS 422 and RS 485 Communications Pinouts Diagrams

 

RS-232 Pinouts:-

 

rs232 pinout1 RS 232, RS 422 and RS 485 Communications Pinouts Diagrams

This is basic information required for Serial communication.

And if you wanna Test serial communication you will need a Software/Tool called ModScan32, Make sure you have connected required 110 ohm resistance at proper connection shown  above and then try to connect.Check for error messages and change connection to right position.

I hope that helps icon smile RS 232, RS 422 and RS 485 Communications Pinouts Diagrams

 

 

 


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