Fastrack switches and signals

You can buy the logic triggered relays on eBay and trigger the relay with those I would imagine.  I haven't tried it, but they don't take much current.  I doubt you'd be able to drive a relay coil directly.

You can, or course, drive a red/green LED or a pair of LED's right from the yellow signal lead with a series resistor, it's a bi-polar signal for the two switch positions.

how about using and gate or or gate or any logic gate to see the low or high signal on the led and then output the gate threw a driver device or gate a transistor or FET on and off as required!

Alan

I think an "off the shelf" application was being sought.  There are tons of these on eBay, just search for Arduino Relay Module.  They are also dirt cheap, the two-relay module was $1.99 with free shipping.

Howard,

I have done this with many of my Fastrack CC switches.  To do it you need the relays, a 5V AC adapter, and I wire all mine through accessory power. 

Howard Reed,

    Long ago Guns and USCGRET and I had this same discussion in the DCS section, in a pretty detailed way, you should be able to reference it using the OGR search, although I put mine together and it does work, I decided to run the wires to my 2nd and 3rd levels was not what I wanted to see on my layout, however the relay modules are not big, or expensive and they do work nicely.

PCRR/Dave