When I was in school there were more bells and some of the old-fashioned buzzers. During fire drills they gave approximately 12 short rings followed by about a 10 second pause before they rang again.
I have these same horns at my old school but on continuas. It definitely gets people's attention, especially if your in a echoey place, like the gym. Good video!
Those appear to be Simplex 4903-9838s or 9833s it's weird how they have the strobe plates mounted and separate from the horns and interesting how a lot of them have those glass panels covering them.
Yup that’s bc there are new alarms installed and the panel was updated during the summer we is upgrading to a new panel too idk what’s it’s gonna be but we’re upgrading to a new one
Seems some of the Staff and Students Looked super confused hearing the horns On Code 3, It also looks the Strobes in some parts are Syncing. But it could be your camera. The Strobe and horn setup looks like a design that's commonly found here In Most Chicago Schools, The Strobes are Usually Wheelock but the Horns are Simplex based. A lot of Schools here(My old High School I attended for 2 years) Has Simplex 4901-9816 horns Next to Wheelock RSS and MT Strobes On Continuous Coding. It was later changed to Code 3 ironically. Mostly We use Non-Temporal on our setups even in newer installs. Also, was the bonus clip from the same day or was this a different day. Nice to see this though
The bonus clip was the same day my friend also recorded the horns by his classroom and A lot of people were confuse because when the horns been changed to Temporal coding back then a lot of staff and students was used to March time and they move quicker but as I’m recording I see kids are moving slow which I understand and yea Thx for watching and my school is also having another fire drill coming up and I will be recording Second floor
@@hampton-roads-bus-guy AC alternates from positive to negative at 60 times per second in a sine wave pattern. The simplest DC power supplies have a transformer that steps the voltage down from 120 VAC to 24 VAC. Then it goes through a diode-based bridge rectifier, which "flips" the negative side to positive, so that on a graph it would look like a series of bumps instead of a sine wave. This is called full-wave rectified (FWR) current and is a rough equivalent of DC. This rippling current will cause certain appliances to function differently. Some horns will sound rough/warbly, and some strobes will flash faster. Some panels (like the MS-2) have this kind of power supply, and certain devices like TrueAlerts are incompatible with it. More sophisticated power supplies will use a filtering capacitor, which discharges to fill in the gaps, smoothing out the ripple to a nearly flat line - filtered DC. If this capacitor starts to go bad, you'll get a noticeable ripple somewhere between DC and FWR. If it's completely dead, you'll be back to FWR again. A lot of 2001's and 4001's have this issue.
@@owentherailfanandfirealarm1805 the Cover plates on are on the Gentex strobe because they were a lot of kids tampering with it and breaking it so they decided to put a plastic cover on it But some areas doesn’t have plastic covers on it
@@firemarshallrj9838 my old Christian school in Crossville Tn use to have 2903 light plates with 9838 horns in each classroom it was built like the letter H and had about 6 classrooms total with a cafeteria and big open room for the library and had one of those alarms in each room and in the open big room and they where loud enough to be heard but unfortunately in 2014 when the school expanded idk if there still there or not but they possibly got replaced with spectra alert advances but the old t bar pulls still remain I got told majority of the old alarms are there except one got replaced the new add on had 4903s installed the panel was a 4002 and got replaced with a 4005 so I’m not sure I was only 6 when I went there
Well yea but it’s the panel that’s coding it the coding was on March time on the 2901s before and the ceiling mount truealerts was on pulse and now the 2901s on now on temporal code now the ceiling mount truealerts it’s still the same coding as pulse 🤷🏾♂️
Yoo I’m back and I got more videos coming in October the system is still same but the coding has been set Temporal code you will no longer hear March time coding any time soon I am gonna miss March time but we on temporal code for now on… have a good day!🚨🔥
@@N.P.R.P.. Yea I don’t get it there’s a difference between shelter in place and a fire drill and what possessed the principal to even say it counts as a Fire drill when you have a fire drill every one supposed to evacuate the school what u do in Shelter in place you basically have to remain in the classroom until the shelter in place has been lifted
Yeah it’s confusing. It wasn’t a drill as K9’a were searching our wing. Besides our principal could’ve done it yesterday last day of September but she took the day off.
@@N.P.R.P. yea my school does that too with k9 searching stuff my school will be having another fire drill soon since it’s now October we haven’t done any lockdown drills yet but we’re gonna have one some point
@@vintagesimplexfirealarmsof6440 yea everybody was confused at first because everybody was used to hear March time now they hearing code 3 and a lot of kids was walking very slow they normally sometimes they be running
