I pulled out my Simplex 4001C and created a demo setup for it.
I have a 2901-9723 6-inch bell, 2099-9754 pull, and a 4098-9601 smoke detector hooked up to the panel. Taking a look at the circuit board, I think my 4001C was made sometime in 1997.
Side note: All of the devices on the system are ULC-certified.
That sure is a unique find you got there, it’s almost like the one that CJ9899 got. Hopefully you can get an annunciator working on it since it would come as a separate card instead of it being built into the panel, at least it has an extra NAC in it.
Right before Tyco bought everything. My boss worked for them, well he worked for a smaller company, and then around 1998 they got bought by Tyco/Grinnell. I’ve seen a few places with rebranded Tyco/Grinnell FA-1000s or FX-2000s.