Most electrical signals are single-ended, comprised of a single wire and ground. Differential signals use two wires which are the inverse of each other -- when one swings positive, the other swings negative in equal magnitude. The receiving circuit looks only at the difference between the two, ignoring any common-mode voltage. This "push-pull& [..]

Physical signaling method by which a pair of wires is used to transmit a signal. The differential transmitter (+) and (-) outputs are 180 degrees out of phase with each other (when one is +5V, the other is 0 volts, and when the first is 0 volts, the second is +5V). The receiver uses the difference between the two lines to determine the digital stat [..]