julian403
Full Member level 5
One different between RS232 and RS485 is the signal. RS232 is a digital signal referenced to ground and in RS485 there is a diferential voltage between two wires. This reduce noise's effect and with it the wire can be longer.
i was watching documentation and RS485 connector has a ground wire. Why? This ground it's for the control signal and not for the data signal?
i was watching documentation and RS485 connector has a ground wire. Why? This ground it's for the control signal and not for the data signal?