I could be a bit incorrect in some of my wording: Here's the item on-site: http://www.leobodnar.com/shop/index....roducts_id=207...

In regard to being able to interface a 1-pole, 12-position (1P12T) rotary switch, it does indeed use only 2 wires rather than 13 without it; also, perhaps I was wrong to use the term 'encoder', so that's on me. In closing, yes, this device works only with the BBI-32 board. I apologize for any confusion created here.