At my place of work, some of the properties have D2 smoke & heat detectors. They link into a warden call system via relay base. We need to replace one of these bases, as it’s faulty. This particular alarm manufacturer has discontinued their relays. I found out that some of these bases were replaced during the development , so we have two different manufacturers devices operating together.
Are there any regulations against this in a BS or similar?
Are there any regulations against this in a BS or similar?