What type of signaling reduces vulnerability to interference in data transmission?

Balanced signaling is designed to reduce vulnerability to interference in data transmission due to its inherent electrical characteristics. In balanced signaling, two conductors carry equal and opposite signals. This configuration helps cancel out electromagnetic interference (EMI) that might affect the transmission lines. Because any external noise tends to affect both lines equally, the receiver can effectively ignore the noise by looking at the difference between the two signals, which enhances the integrity of the data being transmitted.

Balanced signaling is particularly beneficial over long distances or in environments with significant interference, such as industrial settings or locations near heavy machinery. The equal but opposite voltages mean that common-mode signals, which are noise signals that affect both lines simultaneously, do not distort the information content. This unique quality makes balanced signaling a robust choice for high-quality data transmission.