How much ripple voltage can a TrueAlert and 4903/4904 devices take before it starts causing damage to the device? I’m really having a hard time finding a filtered power supply. I only found numbers for the 4905 SmartSync cube.
id just say don’t put any unfiltered power on it to be safe
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I guess I’ll have to just keep looking for a filtered power source
Do you have smart sync capability?
I dont have the 4905 module. Nor do I have any 4903/4904/Truealert devices. I do have mechanical horns. I’m just trying to plan for the future, because I want to make a fire alarm board and I’m looking for filtered power supplies.
Get a panel then 
not very hard
I wish they didn’t cost an arm and a leg. I might have to though.
They dont? You just gotta look
I will keep looking.