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The Attachment Unit Interface (AUI) is a physical and logical interface defined in the IEEE 802.3 standard for 10BASE5 Ethernet [1] and the earlier DIX standard. The physical interface consists of a 15-pin D-subminiature connector that links an Ethernet node's physical signaling to the Medium Attachment Unit (MAU), [ 2 ] sometimes referred to ...
AAUI signals have the same description, function, and electrical requirements as the Attachment Unit Interface (AUI) signals of the same name, as detailed in IEEE 802.3-1990 CSMA/CD Standard, section 7, [4] with the exception that most hosts provide only 5 volts of power rather than the 12 volts required for most AUI transceivers.
Reduced Pin eXtended Attachment Unit Interface (RXAUI) is a proprietary modification created by Marvell [2] and Dune Networks [3] (later acquired by Broadcom [4]) aimed to increase the port density by decreasing the interface pin count. The four lanes of the standard XAUI running at 3.125 Gbit/s are replaced by two lanes at 6.25 Gbit/s.
Define a two-lane 200 Gbit/s Attachment Unit Interface (AUI) for chip-to-chip applications (200GAUI-2 C2C) Define a two-lane 200 Gbit/s PHY for operation over electrical backplanes an insertion loss ≤ 28 dB at 26.56 GHz (200GBASE-KR2)
A Medium Attachment Unit (MAU) is a transceiver which converts signals on an Ethernet cable to and from Attachment Unit Interface (AUI) signals. On original 10BASE5 (thicknet) Ethernet equipment, the MAU was typically clamped to the Ethernet wire via a vampire tap and connected by a multi-wire cable to the computer via a DA-15 port, which was ...
In May 2018, IEEE 802.3 started the 802.3ck task force to develop standards for 100, 200, and 400 Gbit/s PHYs and attachment unit interfaces (AUI) using 100 Gbit/s lanes. [24] The new standards were approved in September 2022.
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An Ethernet network interface controller (NIC) may include the 10BASE2 transceivers and thus directly provide a 10BASE2 BNC connector (that the T-connector plugs into), or it may offer an AUI connector that external transceivers (see Medium Attachment Unit) can connect to. These can be transceivers for 10BASE2, but also for 10BASE5 or 10BASE-T.