Using Motion Sensors from DSC Security System

Hi I have searched and found some info on other security systems but not the one I have.

Model: DSC PowerSeries PC1832

I was hoping to be able to use the alarm system motion sensors for smart triggers while leaving the security system functional.

I saw the usage of a Schlage door sensor that allowed inputs and was curious if it was as simple as that and what the exact wiring would be to my box.

I can link to pictures if need be.