AUI Connectors. The male connector (left) is on the MAU and the female connector (right) is on the MAC device (normally either a computer or a hub / repeater)

An Attachment Unit Interface (AUI) is a 15 pin connection that provides a path between a node's Ethernet interface and the Medium Attachment Unit, sometimes known as a transceiver. It is the part of the IEEE Ethernet standard located between the MAC, and the MAU. An AUI cable may be up to 50 metres long, although frequently the cable is omitted altogether and the MAU and MAC are directly attached to one another. Jump to: navigation, search Image File history File links Download high resolution version (1365x561, 246 KB) Summary Photograph of male and female AUI (Attachment Unit Interface) connectors Taken by me --Ali@gwc. ... Jump to: navigation, search Image File history File links Download high resolution version (1365x561, 246 KB) Summary Photograph of male and female AUI (Attachment Unit Interface) connectors Taken by me --Ali@gwc. ... A computer is a device or machine for processing information from data according to a program — a compiled list of instructions. ... The ethernet hub in a network topology. ... For other meanings, see repeater (disambiguation). ... Ethernet is a frame-based computer networking technology for local area networks (LANs). ... MAU is an acronym for Medium Attachment Unit which converts signals on an Ethernet cable to and from AUI signals. ... A transceiver is a device that has a transmitter and receiver which is combined into a one unit. ... The Institute of Electrical and Electronics Engineers or IEEE (pronounced as eye-triple-ee) is an international non-profit, professional organization incorporated in the State of New York, United States. ... media access control is where people try to access a control to the media. ...

An AUI connector is a 15-pin D-connector. It has a sliding clip in place of the thumbscrews normally found on a D-connector to hold two connectors together. This clip permits the MAU and MAC to be directly attached to one another even when their size and shape would preclude the use of thumbscrews. This clip is however frequently found to be awkward and / or unreliable.

AUI connectors became rarer from the early 1990s. This was because it became more common for computers and hubs to incorporate the MAU, particularly as the 10baseT standard became more common and use of 10BASE-5 (thicknet) and 10BASE-2 (thinnet) declined. The electrical AUI connection was still present inside the equipment. By the mid-1990s AUI had all but disappeared as fast ethernet, which has no direct equivalent of AUI, became more common. Gigabit ethernet and 10 gigabit ethernet have respectively the GBIC and XAUI standards which are equivalent to AUI. 10BASE-T cable 10BASE-T cable and jack 10BASE-T is an implementation of Ethernet which allows stations to be attached via twisted pair cable. ... (Redirected from 10BASE-5) 10BASE5 (also known as thicknet) is the original full spec variant of Ethernet cable, using RG-8 (Radio Grade - 8) coaxial cable. ... (Redirected from 10BASE-2) 10BASE2 cable showing BNC Connector end. ... Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit/s, against the original Ethernet speed of 10 Mbit/s. ... A GBIC is a standard for tranceivers, commonly used with gigabit ethernet and fibre channel. ... XAUI (a concatenation of the Roman numeral X, meaning ten, and the initials of Attachment Unit Interface) is a standard for connecting 10 Gigabit Ethernet (10GBE) ports to each other and to other electronic devices on a printed circuit board. ...

A modified form using a smaller connector called the AAUI was used on Apple Macintosh computers in the early 1990s. Apple Attachment Unit Interface (AAUI) is a 14-position, 0. ... Apple iMac G5 desktop computer Apple PowerBook G4 17 portable computer The Macintosh, or Mac for short, is a line of personal computers designed, developed, manufactured and marketed by Apple Computer. ...

The pinout of the AUI is as follows:

See also

• Thicknet
• Apple Attachment Unit Interface
• XAUI