On Wed, 2010-06-30 at 09:38 +0100, Daniel James wrote:
> Hi Ralf,
> 
> > Assumed it's not broken, than for my Terratec EWX 24/96 there's an issue
> > for the pin allocation.
> 
> Are you using a 15-pin DIN (gameport) to 2 x 5 pin DIN convertor cable
> with an optical isolator inside?

The original cable I did solder and use with an oldish on-board gameport
was without optical isolation. For the Terratec I added opto-couplers.

>  I seem to recall the isolator was
> required when using a gameport (for galvanic isolation?)

Correct, opto-couplers are a standard for MIDI to do galvanic isolation.

> > Do the ports for most sound cards usually have the common pin
> > allocation?
> 
> I think gameport MIDI was a standard from the Soundblaster range, which
> other soundcards of the time adopted. According to the English version
> of the manual for your card:
> 
> http://www.terratec.net/en/driver-and-support/faq_37196.html?selectproduct=EWX%2024/96

Thank you, on the quick I didn't found information about the pin
allocation, but I'll read it again in the evening.

> the pin i/o is standard for gameport MIDI.

If so the card might be broken all the time, it's a gift, or I might
have killed it, because I did a bad soldering ... I didn't notice when
my eyes switched from hawk's eyes to mole and there were issues for the
jack when I added opto-couplers, because of my soldering.

> 
> Cheers!
> 
> Daniel

Cheers!

Ralf


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