The ST-2900 Centronics Parallel Printer Driver (CNT-1) is an expansion board that plugs into the ST-2900 FDC board to buffer the signals sent down the cable to a printer with a Centronics parallel port, and to provide an appropriate printer cable connector.
Centronics Parallel Printer Driver (CNT-1) features:
I had one single-sided prototype PCB made, and assembled it. Unfortunately I never got around to putting it into production.
As far as I can tell from looking at the source code, the software drivers are:
(Click on a picture for a larger version.)
|Pictures of assembled board (382-579KB .jpg).|
ST-2900 Centronics Parallel Printer Driver (CNT-1) board schematics,
component layout, and connectors/cables drawing.
"FLEX" was a trademark of Technical System Consultants (TSC).
"OS-9" is a registered trademark of Microware LP.
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Last revised 2022-May-20 17:16 PDT.
Copyright 2018-2022 David C. Wiens.