gene heskett wrote: > This board claims excellent speed, as in 10ns propagation delays thru the > opto stuffs. That seems rather fast for opto's, and I haven't measured it > although I have the scope to do it with. I don't believe it! If they are really opto-isolators and not some other technology like magnetic, then anything less than 100 ns is almost impossible. I use some expensive optos with amplifiers in them, and they swallow pulses less than 250 ns wide. I don't particularly worry about the propagation delay, but the minimum pulse width is a concern.
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