Which type of system relies on secondary power for operation during emergencies?

The mass notification system is designed to convey emergency information to the public effectively, often in real-time during emergencies such as natural disasters or fire events. These systems must remain operational during power interruptions to ensure that critical messages can be delivered to affected individuals.

To maintain functionality when the main power source fails, mass notification systems typically utilize secondary power sources, such as batteries or generators. This capability is essential for continuous operation, ensuring that alarms, alerts, and instructions can still be issued even if the main electrical supply is compromised.

While other systems, like fire suppression, intrusion detection, and HVAC control systems, may also have backup power capabilities, the primary focus and design specifications of mass notification systems emphasize the necessity for reliable operation during emergencies, making secondary power essential to their function.