What feature allows a fire alarm system to connect with external services?

The ability of a fire alarm system to connect with external services primarily relies on signal transmission protocols. These protocols are standardized methods that define how data is transmitted over a network or communication system. In the context of fire alarm systems, these protocols enable the device to communicate with monitoring services, emergency response teams, or other systems such as building management systems.

By using these protocols, the fire alarm system can send alerts and notifications to external services when an alarm is triggered, ensuring that help is dispatched promptly. This connectivity is essential for effective emergency response and for integrating fire alarm systems into broader safety and management frameworks.

While options like Wi-Fi connectivity and remote activation may enhance a fire alarm system's features, they are ultimately reliant on the underlying signal transmission protocols to facilitate communication with external services. This distinction emphasizes the importance of protocols in ensuring interoperability and reliability in emergency situations.