Apple Attachment Unit Interface
AAUI
(AAUI) A 14-position, 0.050-inch-spaced
ribbon contact connector. Early Power Macs 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 Mac 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)
|