5 Dollar Traffic School Practice Exam

What is the purpose of an End-of-Line (EOL) resistor in an alarm circuit?

To increase circuit voltage To supervise the circuit for open or short faults To limit current to the detectors To convert AC to DC power

To supervise the circuit for open or short faults

An EOL resistor provides a known resistance on the circuit so the control panel can supervise the loop and detect both shorts and open wires.

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