Make up a system

Fire Alarm General Discussion
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Been a while since I did this, but with a recent Simpsons episode I couldn’t resist!
NOTE: Some of these systems are based off bits of real-life systems I know.

SPRINGFIELD ELEMENTARY SCHOOL
Originally built in 1951 with an IBM 4216 fire alarm system, with 8" vibrating IBM bells and 4250 break-glass stations. In the cafeteria and the music room, IBM 4251-113 Chevron pulls were installed (if these existed in 1951, I am sure they did). The panel was located in an electrical closet. Break-glass stations were also installed in the classroom. Similarly, the school bells were 6" IBM bells on an old IBM clock system.
In 1964, a couple of IBM break-glass stations were replaced with Simplex 4251-113 Chevrons.
In 1975, a gymnasium wing was added onto the school. A Simplex 4207 fire alarm panel was installed in this new wing, and the signals were Simplex 4051+4050-80s, with 4251-20 pull stations and 4255 heat detectors (rebranded Chemtronics 500-series sensors). This was tied into the existing IBM system in the old part of the building. An IBM bell in the wood shop room was replaced with a Simplex 4050. The class-change bells in this area were 10" Simplex bells, but the gym had the bells behind grilles, while the other bells were not.
In 1978, the school district got a new superintendent (i.e. Superintendent Chalmers), and he disapproved of the existing 1951 section’s fire alarm system and demanded it be upgraded to meet with the then-current codes. So, the school’s old wing had another Simplex 4207 fire alarm panel installed, next to the IBM panel (they didn’t want to pay to remove the old IBM panel and install a more expensive 4208). The system was customized with both panels so it could give out both AC and DC voltage output, depending on the wiring or signals. Several of the old IBM bells, both school and fire alarm, were replaced with Simplex bells (both were 10", but the fire bells were red and behind grilles). Some of the new fire bells also had remote vertical 4050-80 lights with “FIRE” lettering installed. At the end of a few hallways, there was no alarm and the existing bells couldn’t be heard, so Simplex 4051 horns with dual-projector covers were installed there. The cafeteria (and the area outside it) and library and music room also had no alarms, so they installed Simplex 4051+4050-80s in them (with no “FIRE” lettering). Many of the IBM break-glass stations in the hallways and other areas not in classrooms were replaced with Simplex 4251-20 pulls. The school also had smoke detectors installed in hallways, stairwells, and in a couple of mechanical rooms. They were older ESL smoke detectors. They also put in Simplex 4255 heat sensors in other areas where required. 4207-series Simplex annunciators were installed at the main entrance and near the auditorium wing, to supplement the annunciator installed in the gym wing’s entrance vestibule.
In 1987, a Simplex 4051+4050-80 got smashed in a food fight in the cafeteria, so it was replaced with a Simplex 2901-9833 horn behind a 2903-9001 light plate. They also disconnected a few of the IBM break-glass stations in classrooms where there was a pull station outside the room, especially since a few of their students were the mischievous type and liked causing false fire alarms. The old IBM clock panel shorted out, and was replaced with a Simplex 2350 master time panel.
In 1993, one of the students figured out how to fool around with the Simplex 4207 fire alarm panel in the gymnasium wing, and wound up frying it, leaving the wing with no alarm controls. So they had it replaced with a Faraday MPC-2000 panel, and an RDC-700 annunciator replaced the old Simplex annunciator in this wing, too.
In 1999, some of the old IBM school bells were vandalized, so they were replaced, including most of the 10" Simplex school bells, with 6" 2901-9332 bells. Now they were easily able to tell the school bells apart from the fire alarm bells, which were still 10-inch.
In 2003, the Simplex 4207 panel in the 1951 wing shortened out, so they replaced it with a Simplex 4020 fire alarm panel. In the process, all the existing IBM 8" alarm bells, as well as all the 10" Simplex fire alarm bells, were disconnected, and they simply used the class-change bells as the fire alarm. They left the 4051s (and any 4050-80 light plates) connected, as well as the 2903+2901-9833 in the cafeteria, and the remote 4050-80 lights under the old bells.
In 2005, the 4051+4050-80s in the gymnasium were replaced with SAE VA4 horn/strobes, as was the one outside the cafeteria.
in 2007, the 4051 horn in the music room died, so they slapped a Wheelock NS horn/strobe onto the existing 4050-80 light plate!
In March 2010, something awful happened. The school collapsed! (It was, of course, Bart Simpson’s fault.) The students were placed in modular buildings behind the Springfield high school, as well as some students temporarily located to West Springfield Elementary School. Some of the surviving alarms were sold on eBay, but the others that survived the disaster were stored in boxes and held onto by the school’s fire alarm service crew.
It is unknown what the current fire alarm system will be, but it is not a voice-evacuation system (as the school district cannot afford one). Rumor is it will be a Simplex 4010 system with bells.

I may do more Springfield fire alarm systems soon :smiley:

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They have bells with a voice evac system? If they have voice evac system why don’t they have just the speakers for the alarms? I wonder if the bells stop when the voice comes on, or elese noone will hear the voice instructions.
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I guess, I’ve never heard the system live. The only time i’ve had is when I was calling my mom’s work, and the secretary said they were doing a fire drill at the moment. I could hear the 6" bells going off. They rang every two seconds.

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Wow, this thread is dying. Here’s one I am basing off some of the components in my fire alarm collection (as well as future devices I am going to get.)

An elementary school, originally built in 1954. It had an IBM 4216-1 fire alarm system, with mostly single-projector IBM 4030 horns. Several of the hallways had 4030-2 dual-projector horns. The pull stations were IBM 4251 Chevron pulls. The clock system was an old IBM model, with 6-inch IBM class-change bells.
In 1969, a new wing was added with a gymnasium and several classrooms. This wing had Simplex 4040 horns and Edwards 270-SPO pulls. 4255-1 heat sensors were installed on the ceiling, and a Simplex 4246 fire alarm panel was tied into the existing IBM 4216-1 panel. Simplex clocks and the 6-inch Simplex “STR” bells were installed in this wing as well.
In 1979-1980, since the new fire marshal disapproved of the current setup to the old school (with the old fire marshal, they grandfathered most of the fire codes that have changed since the Our Lady of the Angels fire), they had to make fix-ups to the 1954 portion of the building, including the fire alarm system. A Simplex 2001-8001 fire alarm panel was installed next to the old IBM 4216-1 panel, which was disconnected (the Simplex 4246 was relayed into the 2001). The 2001 was set to Fast March Time. Most of the old 4030s were taken out, except for one in the auditorium, and one in the music room. The IBM pulls were also removed. Simplex 4051 horns on 4050-80 light plates (all with “FIRE” lettering) were installed in most areas, including hallways and large rooms (i.e. the cafeteria, the auditorium, the multi-purpose room, etc.) Pull stations were Simplex 4251-20s, and the smoke detectors were 2098-9508 “wiffle-balls.” 4255-5 heat sensors were also installed in certain areas. The clock system was also upgraded to a then-newer Simplex model, with new Simplex clocks installed in place of the old IBM clocks, but most of the IBM bells remained, except in the music room where a 6-inch Simplex 4090 bell was installed.
In 1986, the 4246 stopped working. Rather than get another 2001 with AC output, they decided to upgrade the whole 1969 portion of the building and tie it into the main 2001 panel. Simplex 2901-9806 horns were installed behind the 2903-9001 light plates, replacing the 4040s. Some of the old Edwards 270-SPO pulls remained intact, but others were replaced with Simplex 4251-20s. The 4255-1 heat sensors were replaced with Simplex 2098-9642 “wiffle-ball” smoke/heat detectors on the 2098-9536 bases.
In 1989, some new classrooms were added, and the gymnasium was renovated. A Simplex 4001 panel was tied into the 2001, to support the new wing. The alarms in the gym and the 1989 wing were Simplex 2901-9838 horns behind 2903-9001 light plates, and the pulls were break-glass 4251-30s (in the gym, metal covers were installed over the 4251-30s). Simplex 2098-9201 smoke detector heads on the -9536 bases were also installed. A few of the 4251-20 pulls were also discovered not working, and were replaced with 4251-30s. The old bells were disconnected, and they now used the PA system for class-change signaling (in 1993, a Simplex 6400 clock panel was installed.)
In 2001, the old Simplex 2001 panel was removed, and the 4001 disconnected. A Simplex 4010 panel (also set on March Time) replaced the 2001, and new Simplex duct detectors were also installed, with the 2098-9806 test stations. One of the 4051+4050-80s died (the one in the art room), so a Wheelock AS horn/strobe replaced it.
In 2005, more classroom space was needed, so a portable was tied into the school. The portable had a Simplex 4004 fire alarm panel, TrueAlert horn/strobes, 2099-9756 dual-action pulls and TrueAlarm smokes.

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Gristmill High School, built in 1965, originally had Simplex coded pull stations with single-stroke bells, upgraded its system in 1988 to a Simplex system with a 2001 panel, Simplex 2903 strobe plates with 2901-9838’s, with -9806’s in the gym. The pull stations were 4251-20’s. In 1999, they added a new wing with a Simplex 4100U, white 4903 mechanical horn/strobes, white 4904 strobes in classrooms and bathrooms, and 2099-9756 pull stations. The whole system was in continuous.

In 2000, a student decided to pull a 4251-20 as a prank for senior prank day and broke the handle off. He was arrested, payed a $1000 fine, and went to prison for a month. The pull was replaced by a -9756. They tested the alarm and found that a 9838 was broken. They replaced it with a Gentex GMH.

In 2009, a fire broke out in the cafeteria and tripped a heat detector. One teacher was giving a test and refused to let her students leave, dismissing the alarm as “Just another drill”. The students decided to listen to the teacher and stay inside. There was major damage to that section of the school, and one of the students in the classroom was injured. School was out for 2 weeks, and the teacher was fired. The whole school was given a lesson on fire safety and had a fire drill when school was back. The melted signals were replaced by True Alerts.

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Northington Middle School, Built in 1932, had a Gamewell AC-powered coded gong system with those flush-mount masterbox-style pull stations.

In 1963, a cafeteria was added. The signals here were Simplex 4030’s.

In 1972, the system became outdated, and was replaced with a Simplex 2001 fire alarm panel and 4051’s on 4050-80 lights. The pulls are Simplex 4251-1 chevrons and the detectors are the old mechanical type smoke detectors and bell-shaped heat detectors. The signal code is march time.

In 1988, a new, larger wing was added to the school, which added an auditorium. The panel is a Simplex 4120, and the signals are Simplex 2903-9101 strobe plates, mostly with 2901-9833’s. One of them has a 2901-9838 and the ones in the gym are 2901-9806’s. The smoke detectors are the old wiffle-ball ones and the pull stations were 4251-30’s. There are no heat detectors because the cafeteria was in the old wing. A 9833+2903 also replaced a broken 4051+4050-80. The signal code is continuous.

In 1993, a prank resulted in installing bananas onto the 2901-9833+2903’s near the cafeteria. The smoke detectors were retrofitted with milk. This caused a 2 hour long false alarm and bananas falling on people due to the vibration. The mess was cleaned up and the detectors were replaced with the older TrueAlarms. Most of the kids were caught and fined $7,000 each and went to juvie for 2 months.

In 1998, Wheelock MT-24-WM’s were insatlled outdoors. They are set to code 3 tone. A broken -9833 was replaced with a 4903-9219.

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Not bad, but I would like to make a few corrections:

The Simplex 2001 was not around in 1972. A system like that from that period would’ve used a Simplex 4208 fire alarm panel or something similar. 4120s were not around in 1988, but the 4100 was (as was the 2120). The rest is pretty much accurate.

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Who cares! This is for fun isn’t it?

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Gristmill Public Library, built in 1927:

  • Started out with round Faraday relabeled Holtzer-Cabot pulls and 1137 single-stroke bells

  • In 1972, a new wing is added and the old fire alarm system is scrapped in favor of a Simplex 4208 and Simplex 4051’s on 4050-80’s. The pulls are 4251-30’s. The detectors are the old Chemtronics mechanical ones. The system is set to march time.

  • In 1986, the system is upgraded, replacing the old Chemtronics heats with 2098 smoke detectors, and replacing some broken 4051’s with 2901-9833’s.

  • In 1996, the 4207 is replaced with a 4004, the smoke detectors are replaced, and the signals are all upgraded to 4903-9422’s. All of the pulls are replaced with dual-action 2099’s. The system is set to code 3.

  • In 2008, the library is demolished due a snow cave-in. The fire alarm system was salvaged and put into the newer library.

  • In 2009, a broken -9422 is replaced with a -9252.

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Macy’s wing at The College Mall and The College Mall in Bloomington, IN.

  • The old system consists of SAE V4 Light Plates and Simplex 9806s in Macy’s. There was no fire alarm system at the mall and there was no food court in the mall.

  • In 2008, there was renovations of a new food court and a bathroom at the food court even new stores. So the office decided to want a new fire alarm system at the new stores and food court.

  • In the Mid 2008 year, they got a new fire alarm system. SimplexGrinnell Technicians were involved. They installed a new panel which is a 4100U with Voice Capability and was installed in the Mechanical/Electrical Room where it was a restricted area. Then they installed Simplex 4906-9251 Speaker/Strobes and 4902-9716 Speakers. They needed a Addressable IDNet NAC Extender for the TrueAlerts, so they installed one.

  • In the 2009 year, The speaker/strobes didn’t have enough coverage, so SimplexGrinnell installed more 4906-9251s and 4902-9716 on more of the walls.

  • In the 2010 year, There was new store and they couldn’t hear the speaker/strobes in the stores. Then SimplexGrinnell had to come back to install more 4906-9251s in the stores.

In the Macy’s area in 2011 - The non-ADA compliant SAE V4 light plates were finally found from SimplexGrinnell in the Macy’s area. They removed the old light plates and the 9806’s in them. They slapped Addressable TrueAlert horn/strobes in the original places and installed 4905-9931 adapter plates too.

TO BE CONTINUED

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Here’s one I based off some of the devices in my collection…

The Karo High School, built in 1953, originally had an IBM 4216 fire alarm system. The signals were mostly single-projector IBM 4030-1 horns, and the hallway outside the cafeteria had a 4030-2 horn, while the gymnasium had two flush-mount 4030 horns. Most pull stations were IBM 4251-1 Chevron pulls, for the most part installed underneath each alarm. Each hallway typically just had two or three alarms and pulls, and the gymnasium had two, but all other large rooms including the auditorium had only one alarm/pull setup. They also had IBM 4015-6A 6" vibrating bells for the school bell system, with one installed next to nearly every alarm. Outside there were 8" IBM bells.

In 1971, a small fire broke out in the wood shop room, and the original IBM 4030-1 horn was replaced with a Simplex 4040 horn, surface-mounted on a trim plate. The old IBM bell was also replaced with a 6-inch Simplex “STR”-branded bell. The original IBM pull station survived the fire and was preserved.
Then again in 1975, the IBM horn in the kitchen stopped working, so it was replaced with a gray Simplex 4050 horn mounted on a backbox (they went with gray because that was what they only had access to at the time). Since there was no school bell in the kitchen, a beige Simplex 4090-style 6" bell was installed.

In 1979, the school’s fire protection systems were given an overhaul. The old fire hoses were taken out and were replaced with fire extinguishers, a new sprinkler system was installed throughout the building, and of course the fire alarm system was upgraded. All that was left of the old system (except the panel) was a disconnected 4030-1 horn in the auditorium, and the 4040 and 4050 installed later on, but disconnected as well, and a couple of IBM Chevron pulls that were apparently disconnected and in rarely-accessed areas. The old IBM panel was too costly to remove from the wall, so it was simply just disabled and used as a junction box. A Simplex 2001-8001 fire alarm panel was installed next to it, complete with March Time Rate card (set on 90bpm, of course). A new Simplex 4308-series annunciator setup, the kind like this:

was installed in the main entranceway. All of the new alarms were Simplex 4051 horns on 4050-80 light plates (with black “FIRE” lettering), installed where old alarms were located, and some extra alarms were also installed where there weren’t any (such as additional alarms in the hall, a new one in the music room, as well as an extra alarm in the cafeteria and the auditorium, and in the school’s old basement/fallout shelter.) The IBM bells were left intact and active, and had an alarm installed next to each one. Outside, a 4051 horn with an SAE AV32 light plate was installed next to one of the outdoor bells. All new pull stations were Simplex 4251-20 T-bars, and the smoke detectors were the large yellow Simplex 4259-35 detectors, as well as 4265 heat sensors (Chemtronics 400-series detectors rebranded) in required areas.

In 1987, the school was added onto, and the new wing had Simplex 2901-9838 horns behind 2903-9001 light plates, 2098-9636 photoelectric “wiffle-ball” smoke detectors on 4-wire 2098-9536 bases and 4251-20 pulls. At this point, the old IBM bells were disabled since the new wing was built without bells, and the old IBM master clock panel was replaced with a new Simplex 2350, but the existing IBM clocks in the original 1953 structure remained intact, except for a few that broke down over time and needed replacing. They sounded a tone over the intercom for class-change signaling by that point.

In 1991, a student found one of the original IBM pull stations in the maintenance wing near the wood shop. Even though it was located not too far from a new 4251-20 pull station, the student decided to pull the old IBM station just for the fun of it, knowing nothing would happen, but to his surprise, when it was pulled, it set off the alarm system! The fire alarms went off for 25 minutes as the school was evacuated, and the fire department initially could not find the source until they came across the pulled IBM Chevron (they had previously seen it not pulled and assumed it was disconnected), and tried to reset it, but the lock broke and the pull station would no longer reset! SO… they had to silence the alarm system, and then the broken IBM pull was removed and the hole was plated over, then the system was reset and back to normal. The student was then only given an in-school suspension since he and the faculty did not know that the IBM pull station was still active for some reason. Another IBM pull station was located in the backstage area of the auditorium, but the handle had been pulled when the station was disconnected, and it was left alone (though an “OUT OF ORDER: USE NEW PULL STATION” sign was placed underneath it).

In 1993-1996, some of the old Simplex smoke detectors stopped working and were replaced with 2098-9201 photoelectric smoke detector heads on the flat 2-wire bases.

In 2001, the old Simplex 2001 panel began malfunctioning, so it was replaced with a Simplex 4005 fire alarm panel that was retrofitted right into the gutted 2001 cabinet.

In 2005, the 4051+4050-80 in the music room broke down, and was replaced with a TrueAlert horn/strobe.

In 2009, another old Simplex smoke detector was replaced with a 4098-9601 photoelectric TrueAlarm detector head.

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Gristmill Middle School, built 1978, originally had a Simplex 4207. The signals were 4051’s on semi-flush trim plates. The pull stations were 4251-30’s, and the detectors were ESL smokes in most of the building and Chemtronics heat detectors in the rest of the building. The system was set on continuous.
In 1985, part of the building was severely damaged when an EF2 tornado touched down near the school. That area of the school was rebuilt and 2901-9833’s were installed on 2903-9101 plates. Replacement pull stations were installed along with wiffle ball-style detectors.
In 1989, the 4207 was replaced by a 4002 and the remaining 4051’s were replaced with System Sensor MA/SS24LO horn/strobes (800 Hz continuous). The system is still continuous.
In 2004, a 9833/2903 broke down and was replaced with a 4903-9220.

The Headquarters of “Poorly-Managed, Expensive Time-keeping and Fire Technologies Co.” , built in 1981, originally had an Autocall CD-NA-3 panel. The pull stations were autocall 4050-001 (break glass version). The smoke detectors were Autocall 4261-501’s, and the notification applicances were a mix of Space Age AV-32 and AV-34 light plates with Faraday 5920’s (this horn: http://www.youtube.com/watch?v=QOoharOfE30). In small rooms and restrooms, there were V-33 remote lights. A few of the visuals had blue lenses instead of red ones. The system was set to continuous, and the lights were synchronized (this can be done by hooking multiple lights to the same flasher circuit).
In 1993, they upgraded the system to strobes (some of which were the SAE strobes and plates, and others were 2903-9101’s, with the strobe below the horn to accomodate the backbox) and replaced the old Autocall panel with a “Poorly-Managed, Expensive Time-keeping and Fire Technologies” 4002 (and a multi-bay 4602 annunciator in the lobby). In 1996, one of the 6120’s broke down and was replaced by a silver, grille-less Faraday horn.

Langley Falls Town Hall, Built in 1970, Originally had a Simplex Coded Gong System. The main bells were 6" bells, mounted high on the wall. 10" bells were installed in larger areas. The bells were all vibrating, and had 4050 remote lights under them.
In 1985, town hall moved to a different building, and Pearl Bailey High School was set up in the old building. The coded system was removed and replaced by a 2001 panel. Wiffle-ball smokes were installed and 4251 chevrons replaced the 4263 coded pulls. The bells were fitted with 2903 strobe plates. The system was set to 120 bpm march time (as opposed to the normal 90 bpm 2001 march time).
In 2005, the system was overhauled due to a renovation. The 2001 was replaced by a Siemens MXL-IQ. The wiffle balls were replaced with Siemens smokes and the 4251’s were replaced by Siemens MPS T-Bars. The 6" bell/strobes were replaced by U-HN-S17’s and the 10" ones were replaced by U-HNH-S17’s. U-HNH-S110-W’s were installed outdoors. The system was set to continuous except for a NAC that covered the basement, which was set to code 3 for some odd reason.

The Newport Barrington was built in 1969 and has an OLD Fire-Lite panel. I don’t know what smoke detectors (if any) Fire-Lite used at the time, but I can tell you that the pull stations were BG-6’s and the notification appliances were V-Signals with newer-style, 120VAC Vibratone 350’s. The ones in the hallways had double projectors. The system was set to 30 bpm march time.
In 1999, a miniscan panel was added, and SystemSensor photoelectric smoke detectors were installed, along with white System Sensor PS24ADA’s in the bedrooms.
During a 2004 test, two PS24ADA’s were found dead and replaced with SpectrAlerts. They were set to 3000hz 4/6 pattern to make them sound similar to the horns they replaced.

Somebody Important Elementary School (the system in this school is based on a real system that I made up a backstory for), built in 1985, has a voice-capable Simplex 2001 system with one of those annunciators that looks like a small 4207. The detectors are 2098 wiffle-balls and the pulls are 4251-20’s. The signals are Simplex 2901-9833’s on 2903 strobe plates. In the gym, there were megaphone speakers mounted on the beams and white, unlabeled 2904’s on the walls. One of them was mounted sideways.
In 1992, a -9833 broke down and was replaced by a -9838. Later that year, a kindergartener pulled a false alarm and STI stopper 2’s were installed over the pulls. During the inspection/installation, a few of the signals were found with both the horn and the strobe broken and were replaced by 2901-9838’s on 4903-9101 plates.
In 1994, a horn was found unoperable and was replaced by an Amseco motor horn.

Milton Bradley Regional K-12 School (Preparing Children for the Game of Life), built in 1975, had a huge Simplex 4207 fire alarm panel. The pull stations were 4251-30 pulls and the detectors were Chemtronics heats. The notificaton appliances were Simplex 4051’s on 4050-85 light plates with the lens flipped. The system was set to continuous.
In 1987, A new wing was added, and the panel in the old wing was replaced with a huge 2120 system. 2901-9838’s on 2903-9102’s were installed along with 4251-20’s and wiffle-ball smokes.
In 1992, the old wing was redone, replacing the 2120 with a 4120, and swapping the 4051+4050-85’s for 2903-9101’s with Gentex GMH24’s. The gym was fitted with 2903’s and 2902-9711’s behind 2903’s.
In 1998, another inspection revealed two broken -9838’s which were replaced with 4901-9805’s. A 4251-30 with a broken handle was replaced by a break-glass, addressable 2099.

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Gristmill Galleria Mall, built 1990, had a Simplex 4120 system with a 4603 annunciator mounted into a multi-cabinet with Simplex 4602 SCU’s for LED indication at the security offices. The initiating devices are the old Simplex addressable TrueAlarms and Simplex 2099-9781 addressable pull stations. The signals are Simplex 2901-9833 horns on 2903-9102 strobe plates, and 2902-9739 LifeAlarm speaker/strobes in the movie theater. The system is set to continuous, and the speakers play the code 3 tone and default Simplex message.

In 1994, a few of the strobe plates were found to be broken and were replaced by 4903-9101’s. Later that year, an alarm test/fire drill was scheduled, but the pull station was inoperable. They replaced it with a 2099-9795.

In 2011, the mall was renovated and a 4100ES was installed in the 4120’s place. The signals were replaced by addressable TrueAlerts, and the pulls and smokes were replaced by their current equivalents.

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Ocean Shores Elementary School was built in 1978-1979 as a campus-style elementary school.
The school initially had four separate fire alarm systems: one to control the main building, one in the field house/auditorium building, and one in each of the two classroom buildings.

The main building had a Simplex 4207 fire alarm panel installed in the main office, and in the main lobby there was a Simplex 4308-style annunciator. All the alarms were Simplex 4051 horns on 4050-80 light plates (all with black “FIRE” lettering on the lens), and the pull stations were Simplex 4251-30s. Smoke detectors throughout the building were Simplex 4259-35 heads (rebranded ESL detectors) on 4259-39 bases, while the restrooms, kitchen and other smaller rooms or closets had 4255-5 heat sensors.
Both classroom buildings also had Simplex 4207 systems, but they were smaller two-zone systems installed in maintenance rooms. Because there were no interior entrances to the classrooms (they all had doors that went directly outside), each building had five or six Simplex 4051 horns on weatherproof backboxes installed right outside. Each regular-sized classroom had a remote 4050-80 light (also with black “FIRE” lettering) installed, though one of the buildings had a larger classroom, so a regular 4051+4050-80 horn/light was installed. Each classroom and maintenance room had a Simplex 4255-5 heat sensor in it, and outside each building there were two Simplex 4251-30 pull stations installed inside special cabinets with “FIRE ALARM PULL STATION INSIDE” to protect them from the elements.
The gymnasium/auditorium building also had a Simplex 4207 fire alarm panel similar to the one in the main building, but was installed in the athletic director’s office. An annunciator was placed in the main entrance to the building. Again, all alarms were Simplex 4051+4050-80 horn/lights, and outside there was a 4051 horn on a Space Age AV32 light plate. The pull stations were all Simplex 4251-30s, and in the gymnasium they had metal cages installed over them. 4255-5 heat sensors were also installed in all required areas, though the main lobby outside the gymnasium and the one outside the auditorium had 4259-36 smoke/heat detectors.
The outdoor school bells were 10-inch Simplex bells behind grilles; each building had two installed. The gymnasium also had two 10-inch bells installed behind grilles, as did the auditorium, but the main building and the other interior areas of the gymnasium/auditorium building had 6-inch Simplex bells surface-mounted on trim plates. All bells and clocks were controlled from a Simplex master time panel in the main office located in the main building.

In 1983, the 4051s in the auditorium were replaced with Simplex 2901-9806 horns on the 4050-80 light plates.

In 1987, a 4051 horn outside the classroom building on the left stopped working, so it was replaced with a Simplex 2901-9838 horn.

In 1991, the Simplex 4259-36 smoke detector in the gymnasium lobby died, and was replaced with a Simplex 2098-9201 photoelectric detector head on a 2098-9637 base. A couple of the classrooms also had the same detectors installed to replace heat sensors. The 4251-30 pull outside the school library was replaced with a Simplex 2099-9768 “Chevron” pull.

In 1996, another 4051 horn broke down, this one outside the classroom building on the right, and was replaced with a Simplex 4903-9805 electromechanical horn. A Simplex 4005 panel was installed in the gymnasium/auditorium building to replace the old 4207, which was now used as a junction box. The old annunciator was left intact.

In 1998, a Simplex 4004 fire alarm panel was installed in the classroom building on the right to replace the shorted-out 4207 there. One of the two 4251-30s there was replaced with a weatherproof Simplex metal T-bar (made by Sigcom). Additionally, a 4251-30 in the main building’s cafeteria died and was replaced with a 2099-9756 dual-action pull.

In 2001, the main building’s Simplex 4207 panel shorted out and was replaced with a Simplex 4020 panel. The old annunciator remained intact to this day. Additionally, another 4051 died on the classroom building on the left, and was replaced with a weatherproof Wheelock MT-24-2M horn/strobe.

In 2004, a couple of 4098-9601 photoelectric TrueAlarms were installed in the main classroom building to replace old smoke detectors that died. Additionally, the 4051+AV32 outside the gymnasium/auditorium building was replaced with a weatherproof Wheelock A-MT horn/strobe.

There is currently talk of eliminating the existing panels and upgrading to a new Simplex 4100ES system network while keeping all existing signals and initiating devices, to eliminate the need of having all systems controlled separately.

Yes, I based this off the elementary school used on the Nickelodeon cartoon series “Rocket Power.” I always thought that school had a pretty cool design and wondered what its alarm systems would be like.

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I’m bored, so here’s a campus fire alarm setup I am making up…

The Kennedy Community College was first built in 1971. It wasn’t much back then; just a student union/gymnasium/college center, and two classroom buildings.
The Student Union building had whatever DC-output fire alarm panel Simplex offered back then (pre-4208), like a 24-VDC 4246 or similar. Most of the alarms were flush-mount Simplex 4041 horns with remote 4050-80 lights installed above them. A couple of the 4041s were installed on 4050-80 light plates, and there was an interesting setup in one area with a 4041 horn behind some large black grille with a pull station on the front of the grille, and above it was a remote 4050-80 light. Pull stations were Edwards 270-SPOs, but the second floor and the cafeteria and library had 4251-1 Chevron pulls. The whole building had 4255-1 metal heat detectors, with the 4265 version in electrical/mechanical rooms and the kitchen.
In 1979, an Edwards pull died, and was replaced with a Simplex 4251-20 pull. At the same time, a heat detector in the library had been activated when a small fire broke out, and it was replaced with a 4255-5 (Edwards) heat detector
In 1984, a 4041 horn broke down, so a 2901-9833 horn took its place, flush-mounted behind the grille. Additionally, another 4041 horn and the light both stopped working, located in the cafeteria, so they both were replaced with a 2903+2901-9833 horn/light setup.
In 1989, another Edwards pull was replaced with a Simplex 4251-20.
In 1993, one of the old remote lights stopped working, so rather than put in a new bulb, they went and replaced the light with a Simplex 4904-9105 remote strobe.
In 1999, a Simplex 4004 fire alarm panel was installed next to the old Simplex panel, which was abandoned and now used as a junction box.
In 2003, a Simplex 2099-9754 pull replaced another Edwards pull.
In 2007, a couple of the 4041 horns were replaced with TrueAlert horn/strobes, and the remote lights above them disconnected. Additionally, the elevator was redone, and in the process they installed 4098-9601 TrueAlarm smoke detectors for the elevator recall feature.

The two initial classroom buildings both had Simplex 4247 fire alarm systems with semi-flush-mount 4040 horns, 4251-1 Chevron pulls and 4255-1 metal heat sensors. One building still has this setup as of today.
The other upgraded in 2003 to a Simplex 4010 system with TrueAlert horn/strobes, 4099-9003 dual-action pulls and addressable TrueAlarm smoke detectors.

A science building was built in 1975, with a Simplex 4208 system. The alarms were 4051 horns on 4050-80 light plates (no “FIRE” lettering), and the pulls were break-glass 4251-30s, and there were also 4255-1 heat detectors installed throughout the building.
In 1985, a 4051 horn was replaced with a 2901-9833 horn.
In 1989, an outdoor signal was installed, which was a 2901-9838 horn on a weatherproof backbox.
In 1997, a Simplex 4005 panel was installed to replace the 4208. Many of the heat sensors were replaced with 2098-9201 smoke detector heads on the flat -9211 bases.
In 2006, one of the 2098-9201 detectors was replaced with a conventional TrueAlarm.

A Performing/Fine Arts building and a new athletic building were built in 1977-1978. They both originally had Simplex 4207 fire alarm systems. The alarms were all 4051 horns on 4050-80 light plates (no “FIRE” lettering), and the pulls were all 4251-20s. Old ESL smoke/heat detectors were installed in hallways and lobbies and in the elevator machine rooms, but smaller rooms and the auditorium and locker rooms got 4255-1 heat detectors.
FINE ARTS CHANGES:
In 1992, a Simplex 4002 panel was installed in the Fine Arts building to replace the 4207. At the same time, some of the old ESL detectors and a couple of the heat sensors were replaced with Simplex 2098-9201 photoelectric detectors.
In 1996, the little theater’s heat sensors were replaced with 2098-9201 detectors.
In 2001, a few more detectors were replaced with TrueAlarms, and one of the old alarms was replaced with a TrueAlert horn/strobe.
In 2003, a 4251-20 pull in the auditorium was replaced with a 2099-9754 pull.
In 2007, a whole zone had the signals upgraded to TrueAlert horn/strobes. The auditorium also had the old heat sensors replaced with TrueAlarm smoke detectors.
FIELD HOUSE CHANGES:
The panel was upgraded to a Simplex 4005 system in 1995. The old Simplex annunciator was also replaced with a brand-new 4602 LED annunciator. The heat sensor in the mechanical room where the fire alarm panel was located had a photoelectric 2098-9202 smoke/heat detector installed.
In 2007, the 4251-20 pulls in the pool room were replaced with 2099-9756 dual-action pulls. Additionally, Stopper IIs were installed over the gym pulls.
In 2010, the 4005 shorted out, so it was replaced with a brand-new Simplex 4100U panel. In the process, all the old 4051+4050-80s were replaced with multi-candela TrueAlert horn/strobes, and a new annunciator was installed in the main lobby. New addressable duct smoke detectors were also installed in some hallways.

A new administration building was built in 1979. The system was a Simplex 2001, with an old-style Simplex annunciator in the main entranceway. The alarms were Simplex 2901-9806 horns on 4050-80 light plates (with the black “FIRE” lettering), and the pulls were 4251-20s. The smoke detectors were the old large Simplex 4259-35s, with 4265 heat sensors in certain areas.
In 1987, the main lobby’s detectors were replaced with 2098-9201 photoelectric heads on the 2-wire bases.
In 1993, one of the 2901-9806 horns died, and a Gentex SHG horn/strobe was slapped onto the 4050-80 light plate.
In 1999, a 2901-9806+4050-80 died and was replaced with a Simplex 4903-9236 horn/strobe. The restrooms also had 4904 remote strobes installed.
In 2004, the building was added onto. The 2001 was replaced with a Simplex 4005 system. The new wing had TrueAlert horn/strobes, 2099-9754 pulls, and conventional TrueAlarm smoke detectors.

Two more classroom buildings were built, one in 1981, two in 1984. They both had Simplex 2001 systems, with 4251-20 pulls and “wiffle-ball” smoke detectors. The 1981 building had 2901-9806 horns on 2903 light plates, and the 1984 buildings had 2901-9833 horns on the 2903 light plates.
The 1981 building had a Wheelock AS horn/strobe installed in 1999, replacing one of the broken 2903+2901-9806s.
In 2005, a few of the wiffle-ball detectors were replaced with TrueAlarms.
One of the 1984 classroom buildings had the 2001 panel replaced in 1995 with a Faraday FireWatch II panel. A couple of the wiffle-ball detectors were replaced with System Sensor 2400 smoke detectors.
In 2003, a few of the 2903+2901-9833 horn/lights were replaced with U-MMT horn/strobes, and a couple more wiffle-balls were replaced with System Sensor i3s.
In 2009, one of the 4251-20s was replaced with a 2099-9756 pull station.
The other 1984 building had a panel upgrade to a Simplex 4006 in 2008. The wiffle-balls were replaced with TrueAlarm smoke detectors. Nothing else was changed.

296

Here’s an interesting one I just came out with, having re-watched “April 9th” again on “Arthur”…

Lakewood Elementary School, located in Elwood City, was opened in 1955. Originally the building had an old Edwards fire alarm system, with one of those old electromechanical-style fire alarm panels (whatever the model number was for their type SSAMR of system, which meant it was supervised, closed-circuit and “common-coded.”) The panel was located in the school basement, with a remote Edwards annunciator in the main office.
The majority of the alarms were Edwards type 382 single-projector Adapt-a-horns (with “FIRE HORN” label), many were red, but some were blue and some brown. The gymnasium had type 380 flush-mount “fire horns.” The panel was set up via its coding system to do 30bpm March Time.
Pull stations were all Edwards 270-SPOs (with “LOCAL ALARM” on top), and in some areas like the basement, Edwards 241 heat detectors were installed (rebranded Chemtronics 500-series heat detectors.)
The system initially could not contact the fire department upon activation.
For the class-change signals, 6-inch IBM 4016 vibrating bells were installed throughout the building. The school had an IBM master time control system operating the bells, with IBM clocks. Outside there were 6-inch IBM bells in the front, and 8-inch bells in the back, all with protective covers over them.

In 1968, an Edwards projector horn in the back hall from the gymnasium was found inoperable during a routine testing, so it was replaced with an 874-style Adapt-a-horn.

In 1975, an old 8-inch IBM bell outside stopped working, and was replaced with a Simplex 4090 beige 10-inch bell.

In 1979, an Edwards pull in the gym was destroyed by a dodgeball, and replaced with a Simplex 4251-20 pull station.

In 1985, the original IBM master clock panel shorted out and was replaced with a Simplex 2350 master time system.

In 1991, the IBM bell in the backstage area of the cafetorium shorted out, and was replaced with an Edwards 6-inch Adapt-a-bel.

In 1994, the Edwards pull in the kitchen broke down, so it was replaced with a newer-style AIP-rebranded Edwards 270-SPO pull (“FIRE ALARM” on top, no Edwards logo.)

In 1996, a new Gamewell master box pull station was installed outside the side of the building, and it was tied into the fire alarm system, so it could now contact the fire department.

In 2002, the school burned. During the renovation/fix-up, the original Edwards system had been removed. A couple of disconnected 270 pulls remain, but were painted over to show they were now out of order. A couple of Edwards horns were also disconnected but remained intact and painted over.
A brand-new Simplex 4100U fire alarm system was installed. The panel was installed right where the old Edwards system had been located. The Edwards annunciator was disconnected, but remained intact, and next to it a new Simplex 4603-9101 LCD annunciator was put in.
The majority of the alarms were Simplex TrueAlert horn/strobes (non-addressable SmartSync models), located in hallways, larger classrooms, the cafetorium, library, music classroom, basement, main office and the gymnasium (where the alarms had protective covers installed.) In the regular classrooms, restrooms and other areas, remote strobes were installed, with classrooms getting 4904-9176 rectangular strobes, and the other areas getting remote TrueAlert strobes.
Pull stations were all Simplex 4099-9003 dual-action T-bars, and in the gym they had Stopper II covers installed over them. The smoke detectors were all addressable TrueAlarms (4098-9714 photoelectric heads on -9792 bases.)
A Grinnell sprinkler system was also installed throughout the building. The old Simplex 2350 time panel miraculously survived the fire, and was left intact, but some of the old IBM clocks and bells that were damaged in the fire had to be replaced. New round Simplex clocks were installed where damaged IBM clocks were, as well as some 6-inch beige Faraday bells (a couple areas had 10-inch bells installed.)

297

A new school which was Grandview Elementary School in Bloomington, Indiana built in August of 1998 has a Simplex system.

In 1998, the school had a existing Simplex 4903-9219 horn/strobes set on 15cd, a Simplex 4020 fire alarm panel and there were older Simplex 2098 Series TrueAlarms.

Unknown year, a smoke detector broke, so SimplexGrinnell had to replace the older 2098 series smoke detector with a newer TrueAlarm 4098-9613.

Unknown year, a 4903-9219 horn/strobe, which the horn died, so SimplexGrinnell had to come for another service call again and replaced it with a Wheelock AS.

TO BE CONTINUED!

298

Here’s one:

The William Harbor High School, built in 1932, originally had an IBM coded fire alarm system. The alarms were IBM 10 Inch Single Stroke Bells. The pulls were IBM Break Glass Stations, each underneath each bell. Each hallway had 3 or 4 Alarm/Pull setups, the Auditorium had 4, the Cafeteria had 2, the Gym had 3, and each large classroom and the library had 1. Signal coding was 2-2-2. The school bells are IBM 6 Inch Vibrating Bells, each next to a 10 Inch Bell. Outside had IBM 4030-1 Horns. The master time panel was IBM.
In 1979, a 10 Inch Bell in the Gym broke. It was replaced with a Simplex Single Stroke Chime.
In 1983, an IBM Break Glass Station broke. It was replaced with a Simplex 4521-30.
In 1991, the school was remodeled. The old fire alarm system was removed. The new system is a voice evac equipped Simplex 4100. The alarms are LifeAlarm Speakers on 4903 Strobe Plates (including some in classrooms and where additional alarm coverage was needed), with 4904 Remote Strobes in the restrooms. The pulls are Simplex 2099’s and there are TrueAlarm Smokes scattered throughout. The alarms play the 4100 Slow Whoop tone and default message. They also removed the old IBM Bells and 4030-1 Horns and installed a new master time system. They sounded a tone over the intercom for class change signaling from that point forward. The master time panel is a Simplex 6400.
In 1998, a LifeAlarm Speaker died. It was replaced with a Simplex 4903 Speaker/Strobe.

299

Here’s 3 more, based on houses:

A house built in 1989, originally had a Simplex 4002 Fire Alarm System. The alarms were Simplex 2901-9838 Horns mounted on the ceiling, with Simplex 2904 Strobes mounted on the walls. The garage had one Simplex 2901-9838 Horn on a 2903 Strobe Plate. The pulls were Simplex 4521-30’s and there were “Whiffle Ball” smokes scattered throughout. Signal coding was Fast March Time.
In 1993, a garden shed was put in. It had one Simplex 2901-9846 Horn, one Simplex 2099 Pull, and one ESL Heat Sensor.
In 1999, a “Whiffle Ball” smoke was found dead. It was replaced with a Simplex TrueAlarm. Also, during that same year, a swimming pool was put in, thus a Gentex GMS Horn/Strobe was installed on the Patio.
In 2002, a Simplex 2901-9838 Horn broke, it was replaced with a Wheelock NH Horn.
In 2005, two Simplex 4521-30’s were replaced with Simplex 4099’s.
In 2007, the fire alarm system was upgraded. The new system is a Fire-Lite MS-9200UD. The alarms are System Sensor SpectrAlert Advance Horn/Strobes, with SpectrAlert Advance Strobes in restrooms. The pulls are Fire-Lite BG-12LX’s and there are System Sensor i3 smokes scattered throughout. Signal coding is code-3. The garden shed alarm, smoke, and pull station remained.

Another house, built in 1955, originally had NO Fire Alarm System.
In 1987, a Simplex 4100 fire alarm system was put in. The alarms were Simplex LifeAlarm Speakers on 2903 Strobe Plates. The pulls were Simplex 4521-20s, and there were older TrueAlarm smokes scattered throughout.
In 1998, the kitchen and dining room was remodeled. The alarms are Simplex 4903 Speaker/Strobes and a Simplex 2099 was installed, everything else remained the same.
In 2004, the Fire Alarm System was upgraded. The alarms are Siemens/CP Speaker/Strobes, with Siemens/CP Strobes in the bathrooms. The pulls are RSG T-Bars and there are System Sensor i3 smokes scattered throughout. The panel is a CP MXLV.

A mansion, built in 1987, originally had two (yes two) fire alarm systems. One was a FBI Fire alarm system for the east wing, the other a Simplex 4002 for the west wing (both are tied into each other). The alarms were mostly Wheelock 7002T Horn/Strobes on the east wing, with Simplex 2901-9833 Horns on 2903 Strobe Plates in the West Wing. The pulls are Simplex 4521-30’s and there are Amesco smokes scattered throughout. All alarms did continous.
In 1999, a 7002T was replaced with a Gentex GMS.
In 2001, the fire alarm systems were upgraded. The new alarms are Gentex SPK4 Speaker/Strobes, with Gentex Remote Strobes in bathrooms. The pulls are Notifier BG-10s. Smokes remained the same. The panel is a Notifier AM-2020.

300

Here’s another one (based off the school in “My Babysitter’s A Vampire”)

The Whitechapel High School, built in 1955, originally had a Gamewell FlexAlarm System. The alarms were mostly Faraday Type 2 Horns. The pulls were Gamewell M Boxes, each under an alarm, except in the gym, where it was near an exit. Each hallway had 2-3 alarm/pull setups, the cafeteria, auditorium, library, and many large classrooms had one alarm/pull setup, the gym had a horn way high up on the balcony. As far as school bells go, they are Edwards 6 Inch Bells, each next to an alarm, with the exception of two additional bells in the gym and auditorium, outside had 10 inch bells. The master time panel was Edwards.
In 1986, a Faraday Type 2 broke. It was replaced with a FOS 6120 + 5511 Horn/Strobe.
In 1998, the whole school was remodeled. The old Gamewell FlexAlarm system was replaced with a Simplex 4100 system with Voice Evacuation. The new alarms are Simplex 4903 Speaker/Strobes, with 4904 Strobes in restrooms. These alarms play the 4100 Slow Whoop tone and default voice evac message. The pulls are Dual action 4099’s and there are TrueAlarm Smokes Scattered throughout. The old Edwards 6 and 10 Inch Bells were removed, and a new PA System was installed. The bell is now a Tone over the PA System, the master time panel is a Simplex 6400.
In 2003, two 4903 Speaker/Strobes were found broken. They were replaced with Wheelock E70 Speaker/Strobes.

And another one based off of Wizards of Waverly Place:

The Tribeca Prep Magnet School, built in 1967, originally had a Simplex coded fire alarm system. The alarms are Simplex rebranded Faraday 6 Inch Bells. Signal coding was an on/off pattern (1 second on, 1 second off, 1 second on, 1 second off, repeats). The pulls were mostly Simplex rebranded Cheverons, each under a bell. Additionally, there were Chemitronics heat sensors scattered throughout. The school bells were mostly Edwards AdaptaHorns, each next to a fire alarm bell, they’re also outside. The master time panel was Edwards.
In 1983, a Simplex bell broke. It was replaced with a Simplex 2901-9332 Bell. Also a few Cheveron’s broke and were replaced with Simplex 4521-30’s.
In 1993, the old Simplex panel died. It was replaced with a Simplex 4020. All the bells were put onto 4903 Strobe Plates, and there are Simplex 4904 Strobes in the restrooms. They also installed several TrueAlarm smokes, and replaced a few Chemitronics heat sensors with ESL Heat Sensors. A few Cheverons were also replaced with 2099’s. Signal coding is 20 BPM March Time. Also, they got rid of the Adaptahorns and installed a new Rauland PA System. The bell is now a 3-second tone over the PA System. The master time panel is a Simplex 6400.
In 2002, a new wing was added on. The alarms in there are CP U-HNH-MCS Horn/Strobes, with CP U-MCS Strobes in restrooms. The pulls in that wing are CP MS-501’s and there are a few System Sensor i3 Smokes. The panel is a CP MXL tied into the 4020. Signal coding is 20 BPM March Time.

301

Came up with another one after re-viewing a Cookie Crisp commercial from 1999 with a school in it…

An elementary school, built in 1939, started off with an old Gamewell fire alarm system of some sort. The horns were Faraday Type 2s, installed only in hallways for the most part, but there was also one in the gymnasium, and one in the auditorium. The school also had an old Edwards clock system with 10-inch vibrating Adapt-a-bels.
In 1963, a new Gamewell FlexAlarm panel replaced the original 1939 system panel. A Vibratone 350 horn was also installed in the cafeteria.

The system stayed intact for a long time, but in 1987, the school was renovated, as it was old and beginning to fall apart. In the process, the new fire alarm system was a Simplex 4002 (large two-bay version,) and was installed in the main office. An SAE annunciator rebranded by Simplex was installed in the main entranceway. The system was set to 120bpm March Time.
All the alarms were Simplex 2901-9833 horns on 2903 light plates. Outside there was also a 2901-9833 horn near the main entrance. Restrooms also had remote 2904 lights (the version with the red lens and white “FIRE” lettering.)
The pull stations were Simplex 4251-30s, and there were 2098-9636 “wiffle-ball” smoke detectors on 2098-9637 two-wire bases in all the required areas. The kitchen and restrooms had 4255-1 heat sensors installed.
A new Simplex 2350 master time system was also installed. The school bells were now 6-inch Simplex 2901-9067 vibrating bells, all installed next to each alarm signal and flush-mounted behind grilles. Outside, there were two of these bells also mounted behind grilles.

In 1999, the fire alarm system was upgraded during the process of a new sprinkler system installation. The 4002 panel was gutted, and a Notifier AFP-200 panel was installed inside the abandoned 4002 cabinet. It actually looked rather awkward. The old Simplex annunciator had the zone indicators removed and a large black panel placed over it, with the key-hole and old Simplex logo still accessible. Next to it, a Notifier LCD-80 annunciator was installed.
All the alarms were now System Sensor SpectrAlert horn/strobes. But the installation wasn’t so good; they simply removed all the 2901-9833 horns from behind the 2903 light plates, then slapped the SpectrAlerts onto them. Some of the new alarms looked crooked as a result, and some of the old light plates had the “FIRE” lens removed. One of them even had a broken light bulb visible! Outside, the -9833 on the weatheproof backbox was replaced with another SpectrAlert horn/strobe. The remote 2904 lights in the restrooms were also replaced with SpectrAlert horn/strobes!
All but two of the 4251-30 pull stations were replaced. One of them was near the boiler room, the other next to an exit near the gymnasium; the latter still had the break-glass frame, but the other had the glass mechanism completely removed! The others were replaced with a mix of Fire-Lite and Notifier-branded BG-10s.
A third of the existing wiffle-ball detectors stayed intact. Many others were replaced with System Sensor 2451T smoke/heat detectors. One of the old Simplex detectors had the head removed, but the base remained intact and had its wires cut. A new detector was never installed in its place. Some of the heat sensors also got replaced with the new smoke detectors.
The Simplex 2350 master time panel remained until 2006, when it shorted out and was replaced with an American Time and Signal AllSync clock panel. All old Simplex clocks were taken out in 1999, and replaced with various battery-operated wall clocks. The Simplex bells remained to this day, but in a few areas, additional Faraday 6-inch vibrating bells were installed to make the bell sound louder between 2001 and 2007.

During a fire alarm testing in 2005, a SpectrAlert was found hanging from its wires due to the awkward install job, so they removed the 2903 light plate, and put it on an adapter plate. The others stayed as is. Some of the BG-10s were replaced with Notifier BG-12s.

In 2008, more of the old heat detectors were replaced with System Sensor i3s. More BG-12s replaced the BG-10s.

In 2010, the Notifier panel shorted out, so they completely removed it and the 4002 cabinet, and installed a Siemens FireFinder XLS panel in its place. The Notifier annunciator, along with the old defunct Simplex annunciator, were both removed and replaced with a Siemens FireFinder annunciator of some sort.
All the alarm signals stayed the same, but some of the BG-10s, along with the 4251-30 near the gymnasium, were replaced with dual-action RSG T-bar pulls rebranded by Siemens. The last few heat detectors were finally replaced with conventional Siemens FireSmart smoke/heat detectors.