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AVIXA Certified Technology Specialist – Installation CTS-I Question # 137 Topic 14 Discussion

AVIXA Certified Technology Specialist – Installation CTS-I Question # 137 Topic 14 Discussion

CTS-I Exam Topic 14 Question 137 Discussion:
Question #: 137
Topic #: 14

Which type of control system provides device operation by opening or closing an electrical current or voltage loop?


A.

IR control


B.

Contact closure


C.

RF control


D.

Serial control


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