Get wired - Pinout and description of Apple Macintosh Internal Floppy disk drive connector.

Apple Macintosh Internal Floppy disk drive connector

pinout

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Pin Name Description
1 GND Ground
2 PH0 Phase 0: state control line
3 GND Ground
4 PH1 Phase 1: state control line
5 GND Ground
6 PH2 Phase 2: state control line
7 GND Ground
8 PH3 Phase 3: register write strobe
9 +5V +5 volts
10 /WRREQ Write data request
11 +5V +5 volts
12 SEL Head select
13 +12V +12 volts
14 /ENBL Drive enable
15 +12V +12 volts
16 RD Read data
17 +12V +12 volts
18 WR Write data
19 +12V +12 volts
20 n.c. Not connected

Source: Apple Power Macintosh 5400 Developer Note

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