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
>
>
>


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