Cort , thats an interesting piece. I have often wondered how I could upgrade ANY system with more power. So, how does that work? I only see one output on that board. Do you take that to an expander board? I dont have an elk but surely I can do something similiar with an On-Q/HAI control panel?
Making the power and backing it up is the costly part, but distributing the power is the inexpensive part. Just take the output from the power supply board to a power distribution module. Elk makes a really great one that has 9 PTC protected outputs each of which is limited to either 250 mA or 400 mA: Elk-PD9. In my case, I will only need 4 outputs, and I want one of the outputs to have a full 1 A ouput, so I will likely use something like this where I can specify my own fuse sizes. Altronix has a similiar module: PD4, but their power distribution modules all take up a little too much relestate.
Here is what will comprise my auxillary power supply:
Altronix AL300ULB 2.5A supervised power supply board
Altronix 28VAC 100VA open frame transformer
Power Sonic 12180 12V 18A battery. Could have used an Elk battery, but this was more readily available to me.
As yet unspecified power distribution model.
As yet unspecified sub enclosure for open frame transformer.