In an alarm system, which component provides the energy to power the system?

In an alarm system, which component provides the energy to power the system?

• A. Sensors
• B. Mechanism
• C. Power Supply
• D. Shrubbery

Answer: (C)

The energy source that powers an alarm system comes from the power supply. This component delivers the electrical energy to the control panel, sensors, and any actuators so they can operate. Sensors and mechanisms don’t generate power themselves; sensors detect changes and rely on the power supply to function, while the mechanism uses that energy to act. In many installations, the power supply is connected to the mains and includes a backup battery to keep the system running during a power outage. Shrubbery has no role in powering or operating the system.

The energy source that powers an alarm system comes from the power supply. This component delivers the electrical energy to the control panel, sensors, and any actuators so they can operate. Sensors and mechanisms don’t generate power themselves; sensors detect changes and rely on the power supply to function, while the mechanism uses that energy to act. In many installations, the power supply is connected to the mains and includes a backup battery to keep the system running during a power outage. Shrubbery has no role in powering or operating the system.