Fire Alarms in Buildings (2.0)

If you look closer into the panel, theres a sticker that says its not in service, the es200x is the replacement panel, and on to the corner next to that blue panel, is a annunciator i forgot the name of, thats probably rebranded by notifier.


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Not only are the two panels odd, but so is having an annunciator right next to the panels like that (usually of course they’re mounted a fair distance away in a more publicly-accessible area).

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Yeah, just noticed that too.

At the Luella Bennack Music Center in San Antonio, TX. Siemens voice evac system.

Pulls: HMS-D

NAs: Rebranded Wheelock E70 speaker strobes, E90 remote speakers and speaker strobes, ZRS-MCC-FW, ZRS-MCW-FW. Interesting enough, there are speaker strobes in the restrooms instead of remote strobes.

Panel: FireFinder XLS (???)

Annunciator: SSD-C

Smokes: Siemens smokes (idk model number)

As branded on its door & as documentation for the SSD-C says, the panel is a Siemens FireFinder XLS (now known as the “Desigo Fire Safety Modular” (not sure who at Siemens thought this name made sense compared to “FireFinder XLS” but yeah).

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Strange that they put the panel in the main lobby. But considering its voice evac and has the mic on it, it seems to make sense.

It’s actually even more confusing than that. Siemens really has two brands now (similar to Potter’s AFP and IPA lines, and JCI’s Simplex and Autocall, where one is significantly more proprietary than the other, and one is sold through dealers, while the other is sold directly to customers.

Siemens Cerberus PRO is their less proprietary brand that is meant to be sold and programmed through independent distributors. It’s a standalone fire protection brand.

Siemens Desigo Is their full building automation company, that is sold, distributed, and programmed solely in-house (similar to Simplex). That company sells more than just fire protection equipment, and Desigo Fire Safety is just one of their divisions.

The Modular and Compact lines are actually completely independent of the two companies. Both product lines are sold by both companies. Desigo sells the FC2025, FC2050, FV2025, FV2050, and Desigo Fire Safety Modular. Cerberus PRO sells the FC901, FC922, FC924, FV922, FV924, and Cerberus PRO Modular. They are the same products, but just with different software and branding.

Even more confusing, is the fact that the FireFinder logo could still be found on the Modular panels’ cabinets long after that branding was otherwise discontinued. For example, I know of many places in my area from 2023 and 2024 (including my school) with cabinets that have the FireFinder logo.

Well that explains my confusion with my middles school system, desigo and a firefinder annunciator. I also found a NFC-50/100 at a main event location in delaware.



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Yeah, it’s frankly all quite unnecessarily complicated.

Oh? Hmm…would not have expected to see that annunciator on that kind of system though! (since usually systems with that model of annunciator are relatively-small & without voice)

Another Update:

I have found the first image of a device from inside the building online:

This looks like an Eaton Eluxa speaker/strobe to me. This really doesn’t help me much with identifying the system, though. It could still be Autocall like I thought, as Simplex/Autocall panels fully support Wheelock and Eaton devices, it could also be a Siemens system with old stock devices, which is very plausible. It could also be something else, but I really don’t see that happening.

This reminds me a lot of when I uncovered this photo of a device at my current school a few months before it opened, and I had to do some speculation:

I really wasn’t sure there, either. Of course, that ended up being a Siemens system.

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I would say, your area is getting more autocall systems, newer siemens systems use acends now, they would have a mix of acends and eluxas if they were using old stock and they went out.

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NYC Museum of Natural History

I unfortunately did not take as many pictures or document the system as much as I have wanted to now. Due to this, major details and information were forgotten or were missed, I was able to find many of these on Google Maps however there are still some details I’d like to go back and figure out. Looking back on the system with my current knowledge it is a very large Simplex network with at least one panel having multiple transponders. 16 Nodes with 2 Transponders.

Node 10: A late Red 4100+, With Newer E70s and 4098 Series TrueAlarms
Node 16: A 4100ES with 2 transponders, ES speaker strobes and modern true alarms. There is also a fire suppression system with a Wheelock AMT, unknown if it is directly controlled by the 4100ES





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Dude some of those devices look ultra rare, wow! Particular the brown 34T-1st-gen doohickey of sorts which is really cool

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I guess it’s in here now
Who, what, where, when, how? Which photo?


This thing

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That looks so cool. Lucky you that you saw it.

That I believe is part of an original coded fire alarm system though, I can’t be for sure

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Silent Knight system at a Home Depot in San Antonio, Tx

Pulls: SD500-PS

NA: Gentex Commander 3 (no picture) and Commander 4

Smokes: SD505 (assuming)

Annunciator: 5860 (no picture)

Panel: 5820XL (assuming)

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Location: Fresh Thyme, Westfield, IN

FAs: System Sensor P2Rs, PC2Rs, PC2RLED (my favorite looking fire alarm)

I didn’t get any pics of the panel or ANNs