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Sonsivri > Electronics > General Electronics (Moderators: o2, pickit2) > Optoisolated printer port interface
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hobbycnc
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« on: January 23, 2008, 08:11:16 20:11 »

 Optoisolated printer port interface for CNC or other use, PCB and Bill of Material

 http://www.fisertek.it/index_000042.html
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avralam
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« Reply #1 on: January 23, 2008, 10:46:59 22:46 »
Schematic and PCB in English and Eagle!
http://www.ottop.republika.pl/optolpt.shtml
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chronus
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« Reply #2 on: February 06, 2008, 12:27:09 00:27 »
Put an H11A1 on each of the data lines, cheap and easy. Digikey 50 cents a piece or so, I believe their also rated for up to 7500 volts isolation Smiley
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