...
If using an external power supply, connect the ground (-) of the external supply to the ground (-) of the ACU’s main power supply.
| Info |
|---|
Note: Openpath recommends that you use the “GND for INPUTS” on the I/O Elevator Board only if all input devices use the same voltage. |
2. Connect one side of the input device (e.g. the C contact for an SPDT device) to the power supply.
3. Connect the other side of the input device (e.g. the NO or NC contact) to an available input on the I/O Elevator Board.
4. Repeat steps 2-3 for all input devices in use.
Below is an example diagram showing two input configurations: the “Input Device” has an optional 1k ohm resistor wired in series, and the “Switch” does not.
...