2.5.4 Fiber Optic Wiring Troubleshooting Facts

Question 1

Connectors

Answer 1

• Wrong connectors will result in misaligned fibers

* Dirty connectors will impede or disrupt the light signal

Question 2

Polishing

Answer 2

• Physical contact (PC)
• Super physical contact (SPC)
• Angled physical contact (APC)

Question 3

Physical Contact

Answer 3

• Used with single mode fiber
• Ends are polished with a slight curvature so that when the cable end is inserted into the connector, only the cores of the fiber actually touch each other

Question 4

Super Physical Contact
(SPC)
Ultra Physical Contact
(UPC)

Answer 4

• Use a higher grade of polish and have more of a curvature than PC polishing, further reducing ORL reflections

Question 5

Angled Physical Contact

APC

Answer 5

• Is used to reduce back reflection as much as possible.
• An APC connector has an eight-degree angle cut into the ferrule which prevents reflected light from traveling back down the fiber.
• Connectors are colored Green