AUI stands for Attachment Unit Interface. AUI is a portion of Ethernet standards that specifies how a cable is going to connect to an Ethernet card. AUI is a physical and logical interface. AUI is defined in IEEE 802.3 standard for 10BASE5 Ethernet. AUI connector is a 15 port coonector that provides a path between an Ethernet node’s Physical Signaling and the Medium Attachment Unit (MAU).
|1||CI-S||Control In Circuit Shield|
|2||CI-A||Control In Circuit A|
|3||DO-A||Data Out Circuit A|
|4||DI-S||Data In Circuit Shield||5||DI-A||Data In Circuit A|
|6||VC||Voltage Common (0 V)|
|7||CO-A||Control Out Circuit A (not used)|
|8||CO-S||Control Out Circuit Shield (not used)|
|9||CI-B||Control In Circuit B|
|10||DO-B||Data Out Circuit B|
|11||DO-S||Data Out Circuit Shield (not used)|
|12||DI-B||Data In Circuit B||13||VP||Voltage Plus (+12 V)|
|14||VS||Voltage Shield (not used)|
|15||CO-B||Control Out Circuit B (not used)|
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