The function output voltage is about half a volt less than track voltage, so at 14.5v (PWR-56, PWR-75 etc) track voltage the function output voltage is about 14.0v. At 12v track voltage the output would be about 11.5 volts.
Given Mel's example, 10.6v with the LED on, add about 3.5v that the LED drops the voltage by and that comes out to about 14v, which is the same as I measured the bares wires at.
Now an equally important question is whats the current rating for the function outputs?
- Tim