Ah I was not aware of that! Classy!

On Wed, Jan 2, 2013 at 8:25 AM, David Kaiser < dkaiser@... > wrote:

> **
>
>
> I understand the intent of the standard "MIDI Thru' connector, but I am
> trying to follow an approach that requires less external gear.
>
> In this case, Doepfer has provided headers on the PCB (printed circuit
> board) on the backside of the modules, to allow you to daisy-chain
> multiple A-190-(2/3) interfaces together, thus replacing an external
> Thru cable with an internal wire. This approach is partially
> documented in the PDF's that I referenced.
>
> I will make the cable and test it myself and report back on how it works.
>
>
> On 01/01/2013 01:37 AM, achtung_999 wrote:
> > What you want is a Midi Thru connector. As I can see both the 190-2 and
> > 190-3 don't have a Thru connector.
> > Best thing you can do is buy an active midi thru box like a Philip Rees
> or
> > so. http://www.philrees.co.uk/products/thruunit.htm
> >
> >
> >
> > On Tue, Jan 1, 2013 at 1:32 AM, David Kaiser < dkaiser@... > wrote:
> >
> >> **
>
> >>
> >>
> >> I have a A-190-3 USB/Midi to CV interface
> >> ( http://www.doepfer.de/a1903.htm) , and recently picked up a A-190-2
> Midi
> >> to CV interface ( http://www.doepfer.de/a1902.htm) as well.
> >>
> >> I'm hoping to daisy-chain the serial MIDI data between the two modules,
> >> so I can use one MIDI (or USB) cable to my rack, train the 190-3 for one
> >> MIDI channel, and train the 190-2 for another MIDI channel, but only use
> >> a single MIDI cable as input to my rack for both modules.
> >>
> >> The Doepfer web site offers an 'excerpt' or single-page of the A-190-3
> >> manual (the "p13" PDF). It has two "jumpers" (dual pins), JP5 for MIDI
> >> OUT, and JP6 for MIDI In. And it looks that a 2-wire cable can be used
> >> for serial transfer like MIDI.
> >>
> >> In the PDF for the A-190-2, there is one jumper set, JP5, with only two
> >> pins. It is labeled for both MIDI IN and MIDI OUT.
> >>
> >> I'm assuming the serial data used in both devices is raw MIDI
> >> (transmit/receive) as you would see through signal analysis of a MIDI
> >> cable.
> >>
> >> Is there a recommended approach to use JP5 (MIDI OUT) from the A-190-3
> >> and lead it to only one pin of JP5 on the A-190-2 for MIDI IN purposes
> >>
> >> In the A-190-3 PDF
> >> ( http://www.doepfer.de/a100_man/A190_3_Manual_p13.pdf) one pin of each
> >> JP5 and JP6 is marked with a 'T' symbol, and this pin is soldered to the
> >> ground plane on the circuit board.
> >>
> >> Does the A-190-3 module tie the 'T'-marked pins of JP5/JP6 to frame
> >> ground through the A-100 System cable
> >>
> >> Is the frame ground how to make up for the lack of the second wire on
> >> the A-190-2
> >>
> >> I am going to try doing a one-wire daisy chain between the A-190-3 out
> >> to the A-190-2. Will it work Has anyone confirmed this
> >>
> >> Thanks for any help, and have a Happy New Year!
> >>
> >> David
> >>
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>
>


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