Atari Connection Machine
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Atari Portfolio connectors pinout

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Atari Portfolio parallel port (HPC-101)

canon d-sub 25 Female

25 pin canon female at interface side
1 /Strobe B0 14 Auto LF B1
2 Data 0 A0 15 /Error C3
3 Data 1 A1 16 /Init B2
4 Data 2 A2 17 Select Input B3
5 Data 3 A3 18 GND
6 Data 4 A4 19 GND
7 Data 5 A5 20 GND
8 Data 6 A6 21 GND
9 Data 7 A7 22 GND
10 /Acknowledge C5 23 GND
11 Busy C4 24 GND
12 Paper empty C0 25 GND
13 Select C1

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