Parallel Port; Table A-2 Macintosh Se Compatible Pin Assignments (Rs-422); Figure A-2 Serial Port Pinout Assignments; Table A-3 Parallel Port (25-Pin Dsub Connector) - Silicon Graphics IRIS Indigo Owner's Manual

Appendix A: Cable Pinout Assignments
3
6
1
4
7
2
8
5
Figure A-2
Serial Port
Pinout Assignments

Parallel Port

1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Figure A-3
Parallel Port
Pinout Assignments
182
Table A-2 Macintosh SE Compatible Pin Assignments (RS-422)
Pin Assignment
1 HSKo
2 HSKi
3 TxD–
4 GND
5 RxD–
6 TxD+
7 GPi
8 RxD+
Table A-3 shows the cable pinout assignments for the parallel port.
Table A-3 Parallel Port (25-pin DSUB Connector)
Pin Assignment
1 STROBE
2 DATA(0)
3 DATA(1)
4 DATA(2)
5 DATA(3)
6 DATA(4)
7 DATA(5)
8 DATA(6)
9 DATA(7)
Description
Output Handshake
Input Handshake Or External Clock
Transmit Data –
Signal Ground
Receive Data –
Transmit Data +
General Purpose Input
Receive Data +