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Apple Attachment Unit Interface (AAUI) is a 14-position, 0.050-inch-spaced ribbon contact connector. Early Power Macintosh and Quadras had an AAUI (Apple Attachment Unit Interface) port (rectangular shaped) for Ethernet, which requires a transceiver. To use twisted pair cabling, you would need to get a twisted pair transceiver for the computer with an AAUI port. Some Power Macintosh computers had both an AAUI and RJ-45 port; you can use one or the other, but not both.

The pin-out is:

Pin Signal Name Signal Description ---- -------------- --------------------------------- 1 FN Pwr Power (+12V @ 2.1W or +5V @ 1.9W) 2 DI-A Data In circuit A 3 DI-B Data In circuit B 4 VCC Voltage Common 5 CI-A Control In circuit A 6 CI-B Control In circuit B 7 +5V +5 volts (from host) 8 +5V Secondary +5 volts (from host) 9 DO-A Data Out circuit A 10 DO-B Data Out circuit B 11 VCC Secondary Voltage Common 12 NC Reserved 13 NC Reserved 14 FN Pwr Secondary +12V @ 2.1W or +5V @ 1.9W Shell Protective Gnd Protective Ground

AAUI signals have the same description, function, and electrical requirements as the AUI signals of the same name, as detailed in IEEE 802.3- 1990 CSMA/CD Standard, section 7.

1 See also

2 References

This article was originally based on material from the Free On-line Dictionary of Computing, which is used under the GFDL.

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Topics: Apple Attachment Unit Interface, Apple Computer, Apple Newton...

Apple ComputerApple Computer, Inc. is a Silicon Valley company based in Cupertino, California, whose main business is computer technologies. Best known for its range of Macintosh computers and, more recently, its iPod personal audio ( MP3 and otherwise) player and iTun	Apple NewtonNewton was one of the world's first personal digital assistants (PDA). Developed by Apple Computer and sold from 1993 to 1998, it was based on the ARM processor, and featured handwriting recognition. Apple's official name for the device was MessagePad the	AppletAn applet is a small program that runs in the context of a larger program on a client computer. Nowadays this usually refers to Java applets, which run in a browser, though it is possible the introduction of the term in AppleScript in 1993 slightly predat
Apple IThe Apple I was an early personal computer and the first to combine a keyboard with a microprocessor and a connection to a monitor. Designed by Steve Wozniak of Apple Computer, it was sold as Apple's first product, beginning in April 1976. Its retail pric	Applesoft BASICApplesoft BASIC was the second dialect of BASIC supplied on the Apple II computer, superseding Integer BASIC. Applesoft BASIC was supplied by Microsoft; Apple was looking for a new version of BASIC for the Apple II Plus computer with 48 KB of RAM, and aft	Apple II familypersonal computers of the 1980s. As can be seen, the Apple II came with an integrated keyboard, common with early personal computers, but very uncommon today. The one pictured is shown with two official Apple floppy disk drives and a monitor. The Apple II
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