Only pointing out the fact that Clyde saying that supposed Wells Fargo/ADT/Pyrotronics FACPs using CPUs makes no sense as most newer panels use such, that’s all (though I also don’t really know what he’s talking about/trying to say either).
I think he’s trying to say that some of those old and large systems used mainframes (very large early computers) as their CPUs.
Never heard of those but okay (though then again I wasn’t really aware of the exact definition of “mainframe” either). Anyway, we digress…
1 Like
Thats exactly what i ment
Check this page Alarm History
As in cmp processing units
I found a rather, interesting demo board, its basicaly a firecom 8500 demo board with some stuff.
2 Likes
Yeah, found that guy’s channel some time back myself: seems as though he’s taken it upon himself to figure out just exactly how the Firecom 8500 works, as he determined the tone generator it uses, for one.
Which securiton panel
found this piece of gold! exact models of everything inside!
1 Like
Something tells me that that’s either the same or a similar report that the 1st user in this topic who started it read in order to know what they posted, but good find regardless! Definitely an interesting read.
I find it odd that such a comprehensive study was done even though the WTC complex’s fire alarm system was arguably such a minor element during both the lifetime of the complex & of course during 9/11.
I actually just found this document myself after deciding to try & find the meaning behind the abbrevation “BBFAS” in the document Firealarmnerd posted (it means “Base Building Fire Alarm System”, which for some reason is not explained in said document (how is anyone supposed to know what it means then?). Not sure if this document that I found has anything new in it, but it does have to do with this topic just the same (& is quite an interesting read too I’d say):
EDIT: Here’s other things I found while reading the previous one, one of which seems to be mostly similar to the previous one, but it might still have some unique stuff in it not mentioned anywhere else (posting it here just in case that’s the, well, case):
https://nvlpubs.nist.gov/nistpubs/Legacy/NCSTAR/ncstar1-4.pdf
This is the obituary of Sherman Spiegel, the guy behind American Multiplex Systems, the company that gave the World Trade Center its first fire alarm system:
Sherman SPIEGEL Obituary (2011) - Los Angeles, CA - Los Angeles Times
This 1973 electronics catalog makes mention of the WTC getting a fire alarm system from American Multiplex on page 28:
I mean it did have a large element, evacuation of the building and notification to fire department
Well yeah, but regardless in the grand scheme of things it likely ultimately did very little during 9/11 besides that.