The Siren Board

I was hoping someone here could help me identify this setup. Im looking for a document that will show the motor starter cabinet components or diagrams.

The fuse on the left in the second picture blows every time you call for the siren. Looks like somebody sprayed all the documentation with wasp spray and it is fairly useless.

Federal Signal 2T22.

Its actually a 3T22 judging by the RC6.

Siren is a 3T22. Why there's a clock timer in the RC6 I'll never know (more info: https://www.thesirenboard.com/forums/vi ... hp?t=20140). That's unique. Looks like the ARC cabinet has had the radio replaced by an FC board.

Hope that helps (and I hope I'm right).

You sure? There's no Solenoid switch in the RCM. If i'm not mistaken there's supposed to be one.

Synther wrote: ↑

Thu Apr 06, 2017 10:37 pm

You sure? There's no Solenoid switch in the RCM. If i'm not mistaken there's supposed to be one.

Look closely and you see a solenoid on the siren, not to mention the timer is a AF timer.

Here is a copy of both the manual for the siren itself and its controls, as well as the original schematic for the entire control circuitry for the siren.

2T22-3T22 Service Manual
Wiring diagram for 3T22 siren

Wow! Thanks a lot guys. That gives ne plenty to research and dig into for now. If anybody thinks of anything further, please feel free to chime in.

Where are you located? If you aren't far I can come out and take a look at the unit and see if I can identify the problem.

Now that i know what I'm dealing with, and have the schematics I can start testing hopefully this weekend. If anyone has any ideas why the left fuse would be blowing, I'm all ears. It is interesting how the clock timer has been swapped in...