AES/EBU, for Audio Engineering Society / European Broadcasting Union, is a 1992 standard (revised in 1995 and 1998) for carrying digital audio signals between various devices using any of three physical interconnection types:
- AES Type I Balanced - 3-conductor, 110-ohm twisted pair cabling with an XLR connector, used in professional installations
- AES Type II Unbalanced - 2-conductor, 75-ohm coaxial cable with an RCA connector, used in consumer audio
- AES Type II Optical - optical fiber, usually plastic but occasionally glass, with an F05 connector, also used in consumer audio