atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Security, Alarms and Paging Emergency Evacuation Over Paging

Client wanted to be able to send an alarm over their existing paging system to satisfy the government without running wires throughout the plant.

At some point before, I had found by accidentally placing my toner on the paging port of the KSU, it would sound out over the speakers.

So my plan was to install a 12 vdc siren which contained lead to it's own speaker. I then connected wires from those speaker leads and X-connected to the paging port, but instead of getting the "siren sound" all I got was a steady tone.

While they claim they would accept this, I would prefer the real siren sound.

What am I doing wrong? This may be a moot point, as since then they asked if it's possible to have alert tones for shift changes, breaks etc added. For that I submitted a bid with a Viking CTG-1 tone generator and I believe that unit will do what I want. However if they won't spend the bucks for that unit, I'm stuck with my existing problem.

Some sirens have 3 wires ..common..steady and warble If thats not it then try putting a non polarized cap. in series with the input.

If the cap doesn't work feed the 12v through a relay contact back onto the coil of the relay. It will cut in/cut out/cut in/cut out etc.

It might simulate a true warble.

Sam

Does the siren have a driver built in? It should have leads for steady or warble tone like Merritt said.

Merritt: It does have 3 wires, common, steady & siren. This I didn't use the "Steady" one....planned for future use if I need it. I did try it though. Gives a steady tone as well, but different sound.

Sam: That's what I was thinking on the way back from site so I went to my supplier. Of course their tech wasn't there but the saleman thought this would do what you're talking about.

Jeff: must have (see answer to Merritt)

Dave, that's what I thought you were using, a standard alarm siren.
A lot of the houses around here use a speaker in the ductwork with an external driver module connected in the alarm panel.

Would have used a speaker but I wanted the ability to connect to the output. With a speaker, I couldn't....they're enclosed.

The alarm suppliers sell an identical unit but without a siren driver, so it just has a set of leads coming off the speaker. Not sure what you meant by enclosed.