Quote:
Originally Posted by bojan
I have noticed that your schematic (hand-written one) uses CTS (pin 8) as an output, while other use RTS (pin 7, PC users).
Better check which one is activated by your application (you can do it with voltmeter... If not active the voltage will be -5V ... -10V, if active it will be +5 ... +10V)
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yes, I noticed this too. May be because it's for a palm serial cable.
Unfortunately I lost somewhere my spare 4n25 optocoupler. However I was able to re-built the one I used for palm by changing wires connection to DB9 pins.
It works now with DSLR Shutter on PC.
Thanks a lot.
2Astroman: I can confirm this too now
4n25 optocoupler works excellent and you can easily buy it from dick smith or jaycar for less than $2 :-)