Annunciator

An operator pushes an "ACK" button to silence the horn, while the light changes from flashing to solid-on. Reset: Once the fault is cleared, the light turns off. 3. Key Features & Functions

The corresponding annunciator window flashes, usually in red or amber. annunciator

Displaying which zone or detector has triggered a fire alarm. An operator pushes an "ACK" button to silence

This guide provides a comprehensive overview of , their working principles, applications, and installation basics based on industrial standards. 1. What is an Annunciator? their working principles