I have to buy my second AR2412 to my new QU-24. I use one for my GLD with AR84 espansion. I saw that is possible to use AB168 in AR2412 expander too, and I just wondered if there is possible to connect another AR2412 instead of AB168 at my first AR2412 expander, using only firsts 16 in an 8 out channels, such as use in my QU-16 when I need it, discriminating the others channels not availables.
There is somewhere a published pictorial that shows what will work. Unless something has changed to my knowledge you CANNOT plug 2 X AR-2412 on the same console.