Simplex 4002 Fire Alarm Test

Test of a system in a university building housing offices for non academic departments and staff. This test was to see if the recently installed network integration panel would communicate the alarm to the Simplex computer at dispatch. The test ultimately failed as the 4120 network serving the campus has been experiencing intermittent problems.
The reason the strobes were not going on the second floor is due to the signal circuit being inadvertently disabled or silenced.
Horn strobes are Simplex 4903-9219, remote strobes are 4904 models, and pull stations are 2099-9754’s. There are a couple smoke detectors in the stairwells and outside the elevator as well.

[@SDTrains8098]

There is no better fire alarm harmony than Simplex

[@ryanhelton1865]

GENT by Honeywell. Their hi-lo tone my goodness 🤯🥵

[@FireRescue80]

Dont you mean Gentex​@@ryanhelton1865?

[@Luke202-z8b]

ikr

[@michaelgrahamwongacutemadness]

I’ve never heard a simplex mechanical horn strobe higher pitched than a g# note some as low as f or any device that used a digital faraday diaphragm

[@FireRescue80]

Gotta love an old Simplex system. Nice video!

[@aidanthetoiletelevatorfire7554]

Love this old Simplex System! They should've installed 4903-9220s along with the 9219s. They should replace the broken strobes with 4903-9252/9255 and 4904-9176/4904-9183 counterparts depending on what candela the strobe is. I actually did see a green asterisk on the first 9219 (similar to what you'd find on a 9236).

[@Luke202-z8b]

realistically unless if simplex are still making their 4903 series, they would probably replace those alarms with truealerts

[@aidanthetoiletelevatorfire7554]

@@Luke202-z8b They are, but only to for retrofit applications to replace the older 4903 horn strobes

[@Luke202-z8b]

@aidanthetoiletelevatorfire7554 oh now that makes more sense

[@Leafy597]

The chord of the horns at 0:10 is really spooky, it reminds me of my elementary school days where we had 4903-9838s on continuous, they sounded just like that!

[@shaneyop6486]

had these in the restrooms in my elementary school and had to use the nurses office which had strobe only

[@Luke202-z8b]

so ig it wasn't just the camera not agreeing with the bright strobes this time...

[@loren4777]

Did the vertical 4903s replace any different alarms

[@sirenfreak57]

Probably, there is a blank plate on the wall next to the first vertical 4903 I show in the video and the other is flush mounted. The university acquired the building in the mid-1980s from what I could find in our archives and converted it from storage/warehouse space into office space at some point between then and 1994-95.

[@Leafy597]

@@sirenfreak57 They probably had simplex 2903s with 9833 horns, assuming the building was actually built in the 1980s

[@sirenfreak57]

@@Leafy597it was built long before the 80’s, but the 80’s was when we purchased the building from the former industrial company that used the building for that purpose. We did have a couple other systems that had 9833s paired with 2903s so it is possible.

[@HDDude1981]

Who's grinding coffee?

[@JMANWiSS]

🤤

[@piggyfan29]

I HATE IT AS THEY DID THE 2ND FLOOR WORNG I HATE THAT SO GODD*MN MUCH!

[@user-uv7ne5tv9k]

0:33 Broken strobe 0:44 another broken strobe 1:06

[@aidanthetoiletelevatorfire7554]

Yeah those alarms need to be replaced with 4903-9255 and 4904-9176, though the mechanical horn harmony wouldn't be heard. It would just have an annoying loud Eeeeeeeeeeeeh sound.

[@sirenfreak57]

@@aidanthetoiletelevatorfire7554they were not broken, the alarm circuit was shut off so fast they didn’t go or they were disabled. They did pass the final inspection about three weeks later, although I was not present for that test, as I was working at another location on campus that day.

[@aidanthetoiletelevatorfire7554]

That's good. I love the sound of the mechanical horns