Which of the following is not a component of the fire alarm system?

The correct answer identifies a component that does not belong in the fire alarm system framework. A sensor station, while crucial for monitoring environmental factors, is not a standardized term typically recognized as a core component of fire alarm systems.

In a fire alarm system, the control unit serves as the brain, receiving signals from other components and coordinating the response. Initiating devices are critical as they detect smoke, heat, or fire and send that information to the control unit. Indicating devices, like alarms or strobe lights, provide notifications when a fire is detected. These roles are essential for the effectiveness and functionality of a fire alarm system, ensuring timely alerts for safety and emergency response.

In contrast, a sensor station may refer to a broader array of sensing devices or systems beyond the traditional fire alarm framework, which explains why it does not fit within the primary components typically associated with fire alarm systems.