In a message dated 6/15/2001 7:14:25 AM Mountain Daylight Time,
wpruitt1@tampabay.rr.com writes:
> Must be a parallel circuit no? How does the system know when the door is
> shut?
It's all a matter of simple grounding switches... When the door is open, the
ground is conncected, when closed it cuts the ground off... Very simple (I
wired into mine for my Neon lights that activate when the door is open....
Greg
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