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AUI

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- The AUI (attachment unit interface) is the 15-PIN physical connector interface between a computer's network interface card (NIC) and an Ethernet cable. On 10BASE-5 ("thicknet") Ethernet, a short cable is used to connect the AUI on the computer with a transceiver on the main cable. In 10BASE-2 or "thinnet" Ethernet networks, the NIC connects directly to the Ethernet coaxial cable at the back of the computer.

IEEE 802.3, the Ethernet standard, defines the AUI 15-pin physical layer interface. This interface is also called a DB-15 interface or a DIX interface (DIX refers to the three major companies who helped standardize Ethernet: Digital Equipment Corporation, Intel, and Xerox).

Learn more about Ethernet

100Base-(T) TX/T4/FX - Ethernet: Cabling tips for network professionals, lesson 5: 100Base-(T) TX/T4/FX - Ethernet cable specifications and uses are discussed in this tip.
Gigabit Ethernet and 10 Gigabit Ethernet: Technology overview: This overview of Gigabit Ethernet and 10G lays the foundation for understanding Gigabit Ethernet technology and the advantages it brings to your network.
Power over Ethernet Crash Course: Discover what Power over Ethernet is, how it works, and whether it's right for your network with these tips and resources.
Power over Ethernet podcast: This podcast discusses the emergence of PoE and its many benefits to enterprise networks. But is the technology ready yet for your network? Let's find out…
FastFacts on Power over Ethernet: Power up on Power over Ethernet with this edition of Networking FastFacts.

LAST UPDATED:

21 Jul 2001

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-	You can order 802.3 from the IEEE Web site.

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