Final answer:
The fire alarm system is a key safety feature designed to alert occupants and notify the fire department via a Central Station when an emergency occurs in a building.
Step-by-step explanation:
The fire alarm system referred to in the question is a vital component of building safety infrastructure. It is a dedicated system installed on a specific floor or area of a building, which is designed to alert occupants and the local fire department in case of an emergency. When this system is activated, it triggers the building's auditory and visual warning devices and ensures that emergency services are notified via a Central Station, which is a facility that monitors alarms and dispatches emergency response personnel as needed.