On Tue, 15 Apr 2008 19:48:39 +0100, "Mr Sandman" wrote:


Hi Andy. thanks for the useful response! Its just 12 Volts DC, so I can dig
a couple of diodes out of an old PCB somewhere I'm sure. Where do you
suggest I put them? one on each of the wires to the power supplies? I'm
sure I can have a play, cant do any harm. I suppose there must be some
electron transfer in some direction across the sensing terminals, I just
need to find out which is positive I imagine?

cheers!

Steve

12v is ideal. Just put diode into one of the wires arriving at the lock.

Repeat for the other lock, same wire with diode in the same direction, (ring
nearest lock for example).

If locks fail to work, reverse the diodes.

Andy