SRD-12VDC-SL-C Relay Module

You will need to provide some information on the control panel. (Installation manual or full schematic.) I assume that you want the signal from the PIR to cause the relay to close. You then want the relay contacts to simulate the overide switch (Which I assume is switching mains voltage.) You only seem to have one wire to the overide switch connections on the control panel. There must be two connection points on the control panel for the overide switch. The one thatyou have not connected needs to go to the common relay connection.

Les.

Thank you for the reply. Unfortunately I don't have any diagrams for the control unit as it was installed by the previous owner of my house. I do have a photo of the previous relay setup and the control panel.
The photo showing the inside of the control panel has a white terminal block label S1 to S6 these each S number references each pir which I have 4 in total, it also shows 12v out put.