The Fire Panel Forums

I've seen that on my older IBM general signal bell. I have no idea what it is, I thought it was a timer or transformer circuit. I can't test mine, because the glass tube was broken when I got it in the mail.

The schools around here usually do 3 in the fall, 3 in the spring, as the snowy conditions prevent us from doing them in the winter months. The one year in high school, we only did 2 in the entire year.

I work in many apartment buildings that have the same setup, tone only over the speakers and a manual paging microphone, with fire phones. I always thought it was a cost issue, like adding automatic voice messages would cost more?

Lol sorry, it autocorrected. I meant to say Tone systems. In my area I only really see tone evacuation and not full on voice evacuation Ah, that makes more sense! I know of a few buildings in my area that feature "true" voice evacuation systems with automatic messages (the Rideau Centre or Ikea sto...

Yeah, I would say that is all accurate. Also, along with the strobe requirements, most new apartment buildings get built with sprinkler systems instead of heat detectors. I just did a newer 12 story apartment building today, that was built about a year or two ago. Hose Cabinets are no longer install...

I actually own a Mirtone 712! I took it out of a 3 story walk up and replaced it with an EST Fireshield (the building just wanted to upgrade the panels, nothing was wrong with it). Haven't had time to play around with it, its currently sitting in my basement. If you ever have the opportunity to mak...

I actually own a Mirtone 712! I took it out of a 3 story walk up and replaced it with an EST Fireshield (the building just wanted to upgrade the panels, nothing was wrong with it). Haven't had time to play around with it, its currently sitting in my basement.

Did you meter out the NAC? Like put a DC meter on the NAC terminals, and measure in alarm and supervisory voltage?

The first standalone voice system that I know of was the CPV-90, which was introduced sometime in the mid-late 1980s and sold alongside the System 3, 3000 Series Conventional Panels (RARE AF) and INS platforms until the VoiceCom systems launched alongside the IXL, PXL, and SXL platforms in 1992-199...

I agree with the above post. It's most likely induction from the wiring to the Horn in the Horn/Strobe. I hear it all the time in voice evac systems when you're at the Amp panel. Most times you can faintly hear the evacuation code from the panel itself.

Thank you! We usually replace them when that happens, as my boss used to work for Edwards for over 20 years, he knows the inner workings of these old panels. & Yeah I really wasn't expecting the bell sound when I pulled it. But, as being government buildings, all of them had 6500s installed in them ...

A lot of the older Edwards panels I have, I can't find any documentation on the panels whatsoever.

Some more tests, a fair bit of small clips over the course from a few months! gKW0Zo9MBQM -In a small walkup building, alarms are Mircom FH-240s controlled by an FA-101T. ezGNd1q2ESM -In the boiler room of the building above. The panel next to it is for the other building attached to it, they share ...

Freshmen year the main campus had an unknown bell system with a bell tone that sounded like a clearer version of the telecor 580 HZ. And a 1 time a day bell that sounded like a doorbell for the first shuttle between the buildings. Over the summer of 2018 this system was replaced with a telecor XL w...

I mean unless you rig it yourself, it would be the only way. These pull stations are built so that they latch when they are pulled.