I received my Behotec e-tracts today and to be honest I am a little confused by the manual. It is translated horribly and I am still trying to figure out what safety precautions the author wanted to give us regarding the use of a switch in the power line. Can somebody please explain?

Strange is also that I found another manual on the Internet, this comes directly from Peter's website Altecare and can be found here: http://www.altecare.com/eline1english.pdf . In that file there is no mention of using or not using a switch in the power line.

I understood that it is recommended to connect the brake & steering input with only the signal and the negative wire, otherwise it would destroy the controller. But what about the actual signal input, this comes with a cable that has all 3 wires connected to it?!

Thomas