Hi, apologies if this has been asked before. Am attempting to replace an alarm in my mums, dad died recently and she wants the security. They had a Response alarm, wired PIRs and door contacts. 6 core cable, 2 power, 2 detector and 2 anti tamper. Am replacing the control box with oswoo pg100 wired and wireless, hoping to use the concealed wiring and PIRs already in, and wireless for whatever extras she wants. Door contact circuits work just fine but having nightmares with the PIRs. Have wired in the 2 power, and the two for the zone, such that the PIR detects, leaving aside the anti tampers for now which i'll wire into a separate zone for all. I cannot make the alarm trigger though by a PIR going off, except if i interrupt the circuit. The old PIRs are NC, and have the new system set to NC. Can anyone think of anything obvious i'm missing or offer any advice? Its driving me bananas, like a caged lion keeping walking in front of the PIRs lol. Thanks in advance