I am working on the drawings for a DB-9 male to RJ45 Adaptor. With this, you can use your SignaLink cables with the KPC3 and KPC3+. I have made a pair now and they work well. But my drawings are all on paper, so as soon as I find time to GIMP them I’ll get them up here.
Also, I have the pinouts for some radios to RJ45 drawings