What signal is initiated when a device indicates the presence of fire?

When a device indicates the presence of fire, it initiates a Fire Alarm Signal. This signal is specifically designed to alert occupants about the existence of a fire hazard, prompting them to take appropriate safety measures. It serves as the first line of defense in ensuring the safety of individuals within a building by notifying them of the need to evacuate or take other actions to protect themselves.

The Fire Alarm Signal is critical as it initiates the response actions from both the building's occupants and emergency response teams. This type of alert is distinct from supervisory signals, which monitor the integrity of the system and its components, and warning signals, which may not necessarily indicate an immediate fire condition. Emergency Evacuation Signals can also be activated as part of an overall fire safety plan, but they are part of the broader response protocol following the identification of a fire. The primary function of the Fire Alarm Signal is to denote an immediate danger due to fire and to prompt an evacuation or other emergency actions.