To optically trigger the SSR's output for isolation, which component is used?

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Prepare for the OCC SACA Sensor Logic Systems 1 (C-205) Exam. Study with detailed questions and insightful explanations. Get ready for your certification!

Multiple Choice

To optically trigger the SSR's output for isolation, which component is used?

Explanation:
Optical triggering in an SSR works by turning the input electrical signal into light that drives the output switch while keeping input and output electrically isolated. The component that creates that light is the LED; when the input current flows, the LED emits photons that are detected by a photosensitive element on the output side to switch the relay. The phototransistor is the detector on the output side, not the light source; a photocoupler refers to the whole LED-plus-detector assembly, and a capacitor isn’t used for the optical trigger in this setup.

Optical triggering in an SSR works by turning the input electrical signal into light that drives the output switch while keeping input and output electrically isolated. The component that creates that light is the LED; when the input current flows, the LED emits photons that are detected by a photosensitive element on the output side to switch the relay. The phototransistor is the detector on the output side, not the light source; a photocoupler refers to the whole LED-plus-detector assembly, and a capacitor isn’t used for the optical trigger in this setup.

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