What element is typically NOT part of a paging system?

Paging systems are audio-based and their core elements are a signal source, amplification, a distribution network, and loudspeakers. Strobes provide visual notification and are a component of fire alarm or mass notification systems (per NFPA 72), not of conventional paging systems, making them the element that is typically NOT part of a paging system.

Distribution - routing amplified audio signal to zones or individual speakers - is a fundamental architectural element of every paging system.

Amplification is required in all paging systems to boost the source signal to a level sufficient to drive loudspeakers at the required sound pressure level.

Loudspeakers are the output transducers that convert the electrical audio signal into audible sound and are an essential, defining component of any paging system.