Programmable Logic Controllers
Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 6, Problem 9RQ

What do the abbreviations NO and NC represent when used to describe switch contacts?

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What does a switch port duplex setting refer to?
Check applicable statements that describes a typical network switch (L2 switch) and its usage:
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