Whelens and Landline Activation

[kswx29]

Are whelens capable of being activated via landline?

A silly question, but I don't think I have ever seen any Whelens being landline activated...except this one in St. Marys, Kansas.

http://maps.google.com/?ie=UTF8&ll=39.2 ... ,,0,-10.29

[bwillcox]

According to at least the Vortex manual, yes, there is an add-in board for the controller that will allow DTMF i/o via landline.

There's also another option board that allows QCII (aka two tone squential) activation.

[EL1998P71]

My Esc-864 cabinet for my WPS-2700 siren has the landline module.
I removed it but still have it somewhere.

[Travis]

Texas Tech University uses landline activation for all of its sirens [which include 2 Whelen products]. In fact, we were having issues with our 2902's activating by themselves for some reason last year when they were first installed.

[SoundOff]

Many of the Whelens in the SONGS community alert system located throughout San Clemente are landline activated.

This siren, labeled "SC-10" in the system is one example even though it is solar powered and located on top of a hill away from other infrastructure. You can see a pole with telephone wires in the background of the first picture.

[Rheems1]

When the Elizabethtown Fire Department first put thier siren up it was being activated by an old relay "can" from a landline. When the fire tones would go off, the old dialer (that used to set off an STH-10 on the old firehouse) would dial the landline number and trigger the Whelen Vortex. I have NO idea how they rigged it but it worked for a year or so, after that a module was added for the 2 tone sequential control (since it is all 2 tone sequential in Lancaster County). Interestingly enough, I am told that they now hate the Vortex and have hooked the dialer back up to the STH-10 and it is now sounding again... go figure!!

Dave Fritz