Now my Boltek unit has been destroyed I am having to revert back to the 1-wire one I had previously. Sadly I have no instructions for the connections as they have become lost along the way. I have the 1-wire connector instructions but I do not know which terminal is the earth and which should connect to the antenna. They are just marked 1 and 2 on my example. Does anyone have a copy of them please? I cannot find mine.