There is a 3 pin female adapter to that little 2 pin plug on the FT-10. That adapts to the old LON-talk cable to its male 3 pin plug for the LON PI. I don’t know though if that’s a TK part, an Eschelon part, or if it should have come with your FT-10. It should have at the least come with a 2 pin plug. With that we can make an adapter.
