By far, the most mixed-up system I’ve seen was at Allegheny General Hospital. I posted photos of it <URL url="Allegheny General Hospital FA Pics]here[/url]. The hospital is made up of multiple connected high-rise buildings and has components of systems spanning 80 years that were still functioning when I took those photos. As far as I know, all of this has been replaced (or is still being replaced) by a Notifier system with a 7-digit bid.
South Tower (20 stories, built in 1936):
- Honeywell FS90 Plus system (installed in 1993-1994)
- Honeywell S464A pull stations
- Assorted Wheelock vandal-resistant speaker/strobes (with WS, WH, and LSM style strobes)
- System Sensor 2400 and 2251 smokes
- A few Honeywell TC100C smokes
- A partially-functioning Holtzer-Cabot gong relay panel (from 1936)
- A few round Holtzer-Cabot coded pull stations and single-stroke gongs
- A partially-functioning Couch zone-coded panel (from late 1960’s)
- A few Couch F5GX non-coded pull stations and F294 bells behind recessed grilles
Snyder Pavilion (12 stories, built in 1981):
- Honeywell W940 conventional system (original to the building)
- Honeywell S464A pull stations
- Atlas Sound voice/tone speakers (branded as Honeywell SC809A)
- Space Age V33 lights
- Honeywell BG-12LX pulls and various Wheelock speaker/strobes installed during renovations
- System Sensor 1451 and 2151 smokes
- A few Pyrotector smokes
Cancer Center (5 stories, built in 2001):
- Honeywell XLS addressable system (rebranded EST equipment)
- Honeywell 278B pull stations
- Honeywell Integrity-series speakers and strobes
- Honeywell SIGA-PS smokes
Parking Garage 1:
- Honeywell S464A’s
- Wheelock MT-24MCW-FR (installed sideways)
Parking Garage 2:
- Honeywell S464A’s
- Wheelock 34T horns