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The following page contains diagrams of the serial interface cable pin assignments for
two types of computer.
1
2
3
5
7
20
1
3
2
20
6
7
5
6
Computer
25-pin F
Printer
25-pin M
Pin assignments for typical PC/XTs and
compatibles, and PS/2 machines
1
2
3
4
5
6
8
7
4
2
3
5
6
7
20
8
Printer
25-pin M
Computer
9-pin F
Pin assignments for typical ATs and compatibles
APPENDIX F. CONNECTOR PIN CONFIGURATION
F-2