On Sat, 23 Nov 2013 15:50:17 -0600, RTS wrote:

Dude, it looks to me like you got a bad module..

It seems that all three test bad:
1. The transformer has an open secondary
2. The low-voltage protection module has an open cap
3. The alarm system simply beeps when I plug in 12VDC

I plugged the 13.5V battery, without the ELK TRG1640 ac charger and
without the D135A low-voltage-protection board, into the
Radionics D2212B alarm system board.

The alarm beeped continuously, without any other indication of
working, and the current I measured was 98 ma continuous:
http://farm8.staticflickr.com/7370/1...4f8a7d31_o.gif

Can all that really happen simply by shutting off the 200Amp main
breaker without also turning off the automatic power generator?