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thanks--another board mentioned that pin 9 might be the positive side of the supply-- any thoughts?
if i use a separate power supply from the card, where would the positive side of the supply go?
Thanks!
Lot of smart people here-- hope you can help.
I am working on a project for my christmas lights. basically, I havea measurement computing dio48/ctr15 card and opto22 oac5 relays. As these relays are negative true logic (sink to turn on) and the card is standard, i needed someway to invert the...
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