Apple Attachment Unit Interface

(hardware, networking)(AAUI) A 14-position, 0.050-inch-spacedribbon contact connector. Early Power Macintosh and Quadrashad an AAUI (Apple Attachment Unit Interface) port(rectangular shaped) for Ethernet, which requires atransceiver. To use twisted pair cabling, you would needto get a twisted pair transceiver for the computer with anAAUI port. Some Power Macintosh computers had both an AAUIand 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 A3 DI-B Data In circuit B4 VCC Voltage Common5 CI-A Control In circuit A6 CI-B Control In circuit B7 +5V +5 volts (from host)8 +5V Secondary +5 volts (from host)9 DO-A Data Out circuit A10 DO-B Data Out circuit B11 VCC Secondary Voltage Common12 NC Reserved13 NC Reserved14 FN Pwr Secondary +12V @ 2.1W or +5V @ 1.9WShell Protective Gnd Protective Ground

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

单词	apple attachment unit interface
释义	Apple Attachment Unit Interface Apple Attachment Unit Interface (hardware, networking)(AAUI) A 14-position, 0.050-inch-spacedribbon contact connector. Early Power Macintosh and Quadrashad an AAUI (Apple Attachment Unit Interface) port(rectangular shaped) for Ethernet, which requires atransceiver. To use twisted pair cabling, you would needto get a twisted pair transceiver for the computer with anAAUI port. Some Power Macintosh computers had both an AAUIand 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 A3 DI-B Data In circuit B4 VCC Voltage Common5 CI-A Control In circuit A6 CI-B Control In circuit B7 +5V +5 volts (from host)8 +5V Secondary +5 volts (from host)9 DO-A Data Out circuit A10 DO-B Data Out circuit B11 VCC Secondary Voltage Common12 NC Reserved13 NC Reserved14 FN Pwr Secondary +12V @ 2.1W or +5V @ 1.9WShell Protective Gnd Protective Ground AAUI signals have the same description, function, andelectrical requirements as the AUI signals of the same name,as detailed in IEEE 802.3-1990 CSMA/CD Standard, section 7. AcronymsSeeAAUI
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