Perimeter breach resistance threshold


#1

Hello.

You have mentioned in the spec that a 2 feet 30 AWG wire or thicker should be used for the peremeter loop.
I’m assuming that the circuit monitors the resistance of each loop, and it assumes that a breach has occured if the resistance rises above certain level.

Since we’re designing a costum flex PCB for the peremeter, it would really help us undertsand what is the resistance threshold. (The Min and the Max values)

Please advice.


#2

Nominal Operating Design Requirements for your Flex PCB are:

Closed circuit resistance < 10Ohms
Open circuit resistance > 100MegOhms to ground or to return trace.

These should be pretty easy to achieve with standard flex PCB processes. If you need further information let us know.