CFOT Certified Fiber Optic Technician Exam

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A technician is experiencing high insertion loss after terminating a fiber optic cable with an epoxy/polish connector. Microscopic inspection reveals a fractured fiber end-face. Which of the following is the most likely cause of this issue?

Using the wrong grade of polishing film. Improper cleaving of the fiber before polishing. Over-filling the connector with epoxy. Exceeding the epoxy's pot life.

Correct Answer:

Improper cleaving of the fiber before polishing.

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