Internal speaker

Joined
7 Jun 2025
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Coventry
Country
United Kingdom
Hi I m trying to connect elmdene int 500 internal speaker to galaxy panel diemestion gd96. Speaker connection are r- siren trigger 0v to activate.
M- low volume siren trigger 0v to activate
ST- strobe trigger
H+ permanent hold-off , +12vdc normal
H- negative hold off supply.
I have wired them to output relay on the dimension panel as follow Bell output to R-, E-E horn to M-, strobe to St- and 12v to H+ and 0v to H-. Bell and low sounder are not working but the strobe is working. I do not understand why Bell or low sounder are not working. I need your help. Thanks
 
Buy a cheap multi meter and test power to sounder I guess.
That's where i would start
 

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