Has or can somebody test on if the board will see the contact as closed if it has 600 ohms of resistance. I have a 1k ohm end of line that was put in the walls for 3 doors (I didn't do it but its done), with that said, if I put in parallel a 1500k ohm resistor I can get the circuit down to about 600 ohms. Is that enough to show the circuit closed? This might help a lot of people who have to live with somebody else's dumb decisions. So short version, open will be about 1500 ohms and closed 600, is that enough to activate the logic in the CCA? I thought I read that somebody tried a 1k ohm closed and it wasn't low enough to activate a "closed" circuit. Just trying to think outside the box for others who have in wall 1k ohm resistors.