The Dart has digital inputs that can be setup to be used with a duress button input.
Step 1 - source a suitable button. There are lots of different types, shapes and colours depending on what you want.
Choose one that is "Normally Open" and provides a momentary closure of the switch when pressed.
We recommend you use the digital Input 1 wire on the Dart harness - this is the PINK wire
Connect one of the pins on the switch to the pink wire.
Connect the other pin on the switch to a ground wire (the black wires on the harness are ground wires)
In OEM Server select the device and "Edit System Parameters"
Select "Digital Input 1"
Then make sure that
- "Bias Resistor" is set to "Pull-up"
- "Active Level" is set to "Low"
- "Upload on Active" is set to Yes - this will cause an upload of the data when the duress is pressed, even when not in trip
Cycle the external power on the Dart to get it to connect into OEM Server and download its new settings.
It is always a good idea to test the setup before getting on-site.