Hi I have an old Abacus system.It was working perfectly. Then I had my front door changed and the alarm light doesn't work on the house.
Anybody familiar with the wiring for the Abacus 12 system or think they can help. I have the original installation manual and installation wiring setup.
The company telephone numbers I have for support no longer work.
I'm SE London Brockley/Peckham. Please let me know if you think you can help.