No, just experienced.
Oh so you have a suitable high-tec panel with multiple annunciation and yet connect it to a home made relay interface! Ok.
No, I'm not up on electrics. I'm well up on alarms and security though and that is exactly what this thread is all about! Sorry but I only know of proper pucker alarm wholesalers - not sell-it-alls.
Oh dear... here we go! The last time I played with relays was late 70's. I dropped them in favout of IC's. Maybe you need to do the same.
WHAT???? a CPO???!!! They know the square root of f*ck all about alarm systems. They know the bare basics and that's it. They give basic advice and then a list of professional installers. How do I know? cos not only have I dealt with them for 25 years I also worked with then as a support officer for 4 years when the job became civvy.