Data General AViiON 5500 Series, Установка, расширение и обслуживание

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Integrated I/O connectors and signals
A-7
014–002250–01
Parallel port connector
The I/O cable from a parallel printer connects to the system board
port through a 25–pin, female D–connector (DB25) located on the
back of the computer system.
Table A–3 lists the signals and pin numbers for the parallel printer
connector; Figure A–3 illustrates the pin numbering and shows the
25– to 36–pin conversion accomplished by the parallel printer cable.
DB25
Connector
CHAMP-36
Connector
to
Parallel Printer Cable Signal Pins
DB25
Connector
CHAMP-36
Connector
to
14
13
1
25
female connector
Figure A–3 Printer connector pin numbering and cable signal routing
Table A–3 Parallel printer connector pin signals
Pin Signal
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
10 – Acknowledge
11 + Busy
12 + Paper End (out of paper)
13 + Select (on line)
Continued