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20 pin Apple HDI-20 connector layout
Разъем 20 pin Apple HDI-20
at the Apple computer, looking into cable-side connector
This connector is present on the Macintosh Duo MiniDock and PowerBook Duo Floppy adapter. An HDI-20 1.4 MB drive can be connected to this port.
Pin Name Description
1 GND Signal Ground
2 GND Signal Ground
3 GND Signal Ground
4 GND Signal Ground
5 NC No connection
6 +5V +5 volts DC
7 +5V +5 volts DC
8 +5V +5 volts DC
9 +5V +5 volts DC
10 NC No connection
11 PH0 Phase 0: state control line
12 PH1 Phase 1: state control line
13 PH2 Phase 2: state control line
14 PH3 Phase 3: register write strobe
15 WREQ Write request
16 HDSEL Head select
17 ENBL2 External drive select
18 RD Read data
19 WR Write data
20 NC No connection
 

14

Статус распиновки: +1 -0
На распиновку Apple Macintosh External Floppy disk drive есть 1 отзыв(а): 1 положительных и 0 отрицательных.

Эта распиновка
Нет DIY устройств
Источник(и) этой и дополнительной информации: Apple "Ports and Pinouts", from Hardware Book
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