Difference between Rs232 and RS485 is Only Distance RS232 is not for long or far distance .. but RS485 can be use for LONGEST distance ..
RS232 is single ended communication where as RS485 is Differential communication.
Max.no of receivers in RS232 is only ONE, whereas in RS485 is 32.
Max.no of transmitters in RS232 is only ONE whereas in RS485 is 32.
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