page_title: AES3
section_title: BNC Connector
hierarchical_section_title: AES3 / Hardware connections / BNC Connector
caption_attribution_description: BNC connector, photo taken in Sweden
context_page_description: AES3 is a standard for the exchange of digital audio signals between professional audio devices. An AES3 signal can carry two channels of PCM audio over several transmission media including balanced lines, unbalanced lines, and optical fiber.
  AES3 was jointly developed by the Audio Engineering Society and the European Broadcasting Union. The standard was first published in 1985 and was revised in 1992 and 2003. AES3 has been incorporated into the International Electrotechnical Commission's standard IEC 60958, and is available in a consumer-grade variant known as S/PDIF.
context_section_description: AES/EBU signals can also be run using unbalanced BNC connectors a with a 75-ohm coaxial cable. The unbalanced version has a very long transmission distance as opposed to the 150 meters maximum for the balanced version. The AES-3id standard defines a 75-ohm BNC electrical variant of AES3. This uses the same cabling, patching and infrastructure as analogue or digital video, and is thus common in the broadcast industry.
caption: BNC connector, used for AES-3id connections.
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