Fire Alarms in Buildings (2.0)

Aha! That settles it. It is a 24VDC light plate! I thought they only made 9102s but I guess I’m wrong

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Yes, that is. I don’t see too many elevators with Fire Alarms in them

I guess I’ve just known the rectangular ADA Compliant Simplex 4903 series for a long time.

Candela Indication:

Green Asterisk=15CD
Blue Circle=30CD
Orange Triangle=110CD

Audible Indication:

Silver Plated: Electromechanical Horn
Little Horn Buzzer, no silver plate: Electronic Horn
Disk in the middle: Speaker/Strobe (Older models had a matte black speaker with a light disk & newer models have a glossy lighter speaker with a black disk)

Here’s some of the models I know (Some of the common audible models); Most common models will be bolded & labeled with an asterisk. Models quoted will be a list of all models I found online. If they’re not quoted it means they were never found on YouTube, on an online website & eBay

Speaker/Strobes

"4903-9142 (25V, 30CD Red Horizontal)* "
4903-9143 (25V, 30CD Red Vertical)
"4903-9144 (25V, 110CD Red Horizontal)* "
“4903-9145 (25V, 110CD Red Vertical)”
"4903-9146 (25V, 15CD Red Horizontal)* "
“4903-9147 (25V, 15CD Red Vertical)”
“4903-9167 (25V, 15CD, White Horizontal)”
"4903-9168 (70V, 15CD, Red Horizontal)* "
4903-9169 (70V, 15CD, White Horizontal)
“4903-9170 (25V, 30CD, White Horizontal)”
"4903-9171 (70V, 30CD, Red Horizontal)* "
4903-9172 (70V, 30CD, White Horizontal)
“4903-9173 (25V, 110CD, White Horizontal)”
"4903-9174 (70V, 110CD, Red Horizontal)* "
4903-9175 (70V, 110CD, White Horizontal)
4903-9176 (70V, 15CD, Red Vertical)
4903-9177 (70V, 30CD, Red Vertical)
4903-9178 (70V, 110CD, Red Vertical)
"4903-9148 (Selectable, 30CD, Red Horizontal)* "
"4903-9149 (Selectable, 110CD, Red Horizontal)* "
"4903-9150 (Selectable, 15CD, Red Horizontal)* "
“4903-9153 (Selectable, 15CD, Red Vertical)”
“4903-9193 (Selectable, 15CD, White Horizontal)”
“4903-9194 (Selectable, 30CD, White Horizontal)”
“4903-9195 (Selectable, 110CD, White Horizontal)”

Horn/Strobes

"4903-9215 (Electromechanical, 30CD, Red Horizontal)* "
4903-9216 (Electromechanical, 30CD, Red Vertical)
"4903-9217 (Electromechanical, 110CD, Red Horizontal)* "
“4903-9218 (Electromechanical, 110CD, Red Vertical)”
"4903-9219 (Electromechanical, 15CD, Red Horizontal)* "
“4903-9220 (Electromechanical, 15CD, Red Vertical)”
“4903-9221 (Electromechanical, 15CD, White Horizontal)”
“4903-9222 (Electromechanical, 30CD, White Horizontal)”
4903-9223 (Electromechanical, 110CD, White Horizontal)
"4903-9236 (Electronic, 15CD, Red Horizontal)* "
"4903-9237 (Electronic, 30CD, Red Horizontal)* "
"4903-9238 (Electronic, 110CD, Red Horizontal)* "
“4903-9239 (Electronic, 15CD, Red Vertical)”
“4903-9240 (Electronic, 110CD, Red Vertical)”
“4903-9241 (Electronic, 15CD, White Horizontal)”
“4903-9242 (Electronic, 30CD, White Horizontal)”
"4903-9252 (Selectable, 15CD, Red Horizontal)* "
"4903-9253 (Selectable, 30CD, Red Horizontal)* "
"4903-9254 (Selectable, 110CD, Red Horizontal)* "
“4903-9255 (Selectable, 15CD, Red Vertical)”
“4903-9256 (Selectable, 110CD, Red Vertical)”
“4903-9257 (Selectable, 15CD, White Horizontal)”
“4903-9258 (Selectable, 30CD, White Horizontal)”

Sync Speaker/Strobes

"4903-9301 (25V, 15CD Red Horizontal)* "
4903-9302 (25V, 15CD Red Vertical)
"4903-9303 (25V, 30CD Red Horizontal)* "
4903-9304 (25V, 30CD Red Vertical)
"4903-9305 (25V, 110CD Red Horizontal)* "
4903-9306 (25V, 110CD Red Vertical)
4903-9325 (25V, 15CD, White Horizontal)
"4903-9326 (70V, 15CD, Red Horizontal)* "
4903-9327 (70V, 15CD, White Horizontal)
4903-9328 (25V, 30CD, White Horizontal)
4903-9329 (70V, 30CD, Red Horizontal)*
4903-9330 (70V, 30CD, White Horizontal)
4903-9331 (25V, 110CD, White Horizontal)
"4903-9332 (70V, 110CD, Red Horizontal)* "
4903-9333 (70V, 110CD, White Horizontal)
4903-9334 (70V, 15CD, Red Vertical)
4903-9335 (70V, 30CD, Red Vertical)
4903-9336 (70V, 110CD, Red Vertical)

Sync Horn/Strobes

"4903-9401 (Electromechanical, 15CD, Red Horizontal)* "
4903-9402 (Electromechanical, 15CD, Red Vertical)
"4903-9403 (Electromechanical, 30CD, Red Horizontal)* "
4903-9404 (Electromechanical, 30CD, Red Vertical)
"4903-9405 (Electromechanical, 110CD, Red Horizontal)* "
4903-9406 (Electromechanical, 110CD, Red Vertical)
4903-9413 (Electromechanical, 15CD, White Horizontal)
“4903-9414 (Electromechanical, 30CD, White Horizontal)”
4903-9415 (Electromechanical, 110CD, White Horizontal)
"4903-9422 (Electronic, 15CD, Red Horizontal)* "
"4903-9423 (Electronic, 30CD, Red Horizontal)* "
"4903-9424 (Electronic, 110CD, Red Horizontal)* "

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That could be a worst nightmare you’re right

Real. I heard these going off the other day. They’re so loud!

HOLY MOLY! I’VE SEEN DOCUMENTATION ON AUTOCALL VOICE SYSTEMS BUT I NEVER KNEW ANY EXISTED!!!

It looks to be from the 80s. You’re probably bout to crash rn lol

Error Error Error Errrrrrrrrrrrrr does Wii Crash Sound

GUYS I THINK ERICK MORTON MAY HAVE ACCIDENTALLY DISCOVERED A SUPER RARE SIMPLEX 2001 LIFEALARM SYSTEM WITH EVAC at Boutwell Auditorium in Birmingham, AL!





Bro crashed out when I seen this.

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More pictures
IMG_20251017_175301_546~2

It also seems that the building may still have it’s old system.

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Heck for a find for sure, but please calm down just the same.

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Agreed, you seem to be taking everything a little over the top.

That l series led is upside down

St Louis Missouri science center
Signals:
Mirtone rebranded EST 895-Bs
Wheelock NS
Wheelock RSS
Wheelock Exceeder
A single Gentex SHG
Wheelock E60 in the “grow” part and a few in the other areas





Pulls:
All Notifier NBG-12LX’S (most are Notifier Fire Systems versions)


Panel:
Unknown Notifier panel, probably a NFS-3030.

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I never noticed that! The fire lettering looks like it is upright though.

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I thought Mirtone was only a Canada thing.

They were based in Canada, but as I once discovered you will sometimes find their devices in the US just the same (though funnily enough I believe some of the only ones I’ve found were in Florida of all places, AKA just about the farthest you can get from the US-Canada border).

I also kinda thought the same about Mircom until I saw some at Biloxi Beach, MS.

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It’s not upside down, the speaker strobes just have the strobe positioned towards the top for some reason.

Lowe’s Edwardsville IL
They have Wheelock AS ceiling mounts
Wheelock RSS ceiling mounts
Radiotronics pull stations




I heard these alarms too!