Aloha,
short update without photos.
Had lots of plans for the long weekend, but ended up with major frustration.
I snookered myself to say it nicely, I had designed a fault into my signal modules which then
as I connected more of them and to different transformers, caused a voltage spike.
They are supposed to work on about 20 V DC, but I suddenly had over 50 Volts.

I noticed a crackling sound when I switched the layout off, much like a car cooling down that's been driven very fast.
Then I noticed resistors that where discolored.
I was very lucky that none of the Led's in the signals got damaged, as they are glued in and those particular Led's
are not available here in SA.
I would have had to order all new signals.
Its sorted now and I've spent as much time as possible connecting all the feed back wires and programming the routes.
Now I just need to get a few more reed switches to complete the system.