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IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)

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<strong>IBM</strong> Monochrome Direct Drive Interface<br />

and Pin Assignment<br />

REAR PANEL<br />

9 PIN "0"<br />

SHELL CONNECTOR~<br />

o<br />

1 • • 6<br />

· e·C3lW-~~ o<br />

~ 0~<br />

PARALLEL<br />

PRINTER<br />

ADAPTER<br />

• •<br />

: • 9<br />

<strong>IBM</strong><br />

Monochrome<br />

At Standard TTL Levels<br />

Ground 1<br />

Ground - 2<br />

Not Used 3<br />

Not Used 4<br />

Not Used 5<br />

<strong>IBM</strong> <br />

Monochrome <br />

Display and <br />

Display .... + Intensity 6 Parallel Printe <br />

.,<br />

.... + Video 7<br />

""<br />

""<br />

""<br />

.... + Horizontal 8<br />

.... - Vertical 9<br />

NOTE: Signal voltages are 0 - .6 Vdc at down level <br />

+5 Vdc at high level <br />

Adapter<br />

2-44

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