AAUI ==>
Apple Attachment Unit Interface
<hardware, networking> (AAUI) 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.
(2000-02-10)
Nearby terms:
AppKit « APPLE « Apple Address Resolution Protocol «
Apple Attachment Unit Interface » Apple
Computer, Inc. » Apple II » Apple Macintosh
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