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There are many different kinds of fire alarms: some notifications are local, some remote.

Local, self-contained alarms only notify those who are within earshot of the noise. Anyone hearing an alarm would need to take steps to notify the fire department.

Other "local" alarms could include smoke detectors that are wired together so that when one goes off they all go off, thus signalling anyone within earshot of any of the other smoke detectors.

More sophisticated systems have a local panel and local alarm signal systems that may include horns, strobes, and other signals within the structure.

Finally, some fire alarm panels are required to be connected for "remote signalling" to a licensed monitoring center or dispatcher who can then relay the information to the fire department and others for response to the alarm.

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12y ago

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