Google doesn't know how to distinguish search terms unless you tell it specifically. If you enter 'MIDI to CV', it will find everything it can that contains 'MIDI', 'CV' and 'to'. You have to enclose the whole thing in quotes (ie: ' "MIDI to CV" ') to get it to return that specific set of results. As for why there's a MIDI in on the A-192-2, it's so you can merge the data coming out of the module with another MIDI stream if desired.

Have a look at the Expert Sleepers stuff instead. There's several options there for converting CV/gate/trigger data into MIDI, or even sending it "raw" to Ableton's CV Tools via USB or ADAT optical, as well as several controller connection options, and expandability.