I have 3 inputs. Input #1 is low bias. I can hook up a 12V positive to input 1 and it will change it's state to 1 (or input is ON).
Inputs #2 and #3 are high bias. Connecting a 12VDC to either of these inputs causes no change in state.
The description for these two inputs describes +12v via 100kΩ res, with a 2V threshold. I can't change the "high" state on these two inputs.
What kind of input is expected on inputs 2 and 3?