Which type of alarm system is not classified as a supervising station alarm system by NFPA 71?

The classification of alarm systems by NFPA 71 distinguishes between various types of monitoring and response setups. The protected premises alarm system is designed primarily for on-site monitoring and responding to alarms within a specific building or premises. This system often allows for local alarm notification and activation, ensuring that immediate action can be taken by the occupants or on-site security personnel.

In contrast, supervising station alarm systems, such as central station and proprietary supervising stations, involve a third-party monitoring service that receives signals from alarm systems and takes action on behalf of the premise owner, typically through a more robust communication infrastructure and an off-site monitoring capability. The remote supervising station also falls within this category, as it involves external monitoring services as well.

Therefore, the protected premises alarm system is not classified as a supervising station alarm system under NFPA 71 because it primarily operates within the confines of the premises itself and is not reliant on off-site monitoring or centralized response mechanisms. This distinction is crucial for understanding the roles various alarm systems play in fire safety and response planning.