Hello, I would like to know if anyone has a site or image of a wiring schematic for the DB25 connectors that the 192i/o uses? Also, I'm confused as to how many analog inputs the stock 192i/o has? I see two db25 connectors on the back but each have different voltages? does this mean that there are 16 possible xlr inputs without the added expansion card? and 24 possible with the expansion card?