propaudio

The RS485 cable is a type of communication cable used in serial communication systems, particularly in industrial and commercial applications. It is not an application or protocol but a balanced transmission interconnect standard that specifies the electrical characteristics of drivers, receivers and transceivers.

The RS485 standard defines that devices must transmit data using differential signaling over a twisted pair of impedance-matched signal wires A and B. The communication partners encode bits as the voltage difference between the two wires rather than a single wire and a common ground. The use of differential signaling in combination with physically twisted wires increases the robus