• fire alarm supervisory vs troubleSupervisory: This fire alarm signal type is related to the supervision of certain field components. As an example the opening and the closing of the Sprinkler valve.
  • Trouble: This fire alarm signal is typical of a device malfunctions.
  • Alarm: This fire alarm signal is caused by the activation of a fire alarm component such as a smoke detector, heat detector a manual pull station, a duct detector on any other.

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