1.5 Optical Fiber Flashcards
N10-009 Obj. 1.5 Compare and contrast transmission media and transceivers (9 cards)
What is a key advantage of fiber optic cabling compared to copper cabling in terms of signal interception?
Fiber is more secure because it’s difficult to tap without detection, unlike copper which can be easily tapped.
Transcript: “Very secure networks… difficult to tap into a fiber optic connection… copper… is relatively easy to tap…” (0:13–0:34)
Why is fiber optic cabling better suited for long-distance communication than copper?
Fiber signals degrade much less over distance, allowing transmission over kilometers versus ~100 meters for copper.
Transcript: “Might be able to be sent over kilometers if you were using fiber optics.” (0:46–0:49)
How does fiber optic cabling perform in environments with radio frequency interference?
Fiber is immune to RF interference, making it ideal for noisy environments.
Transcript: “Light is not susceptible to any type of radio frequency interference.” (0:51–0:55)
What are some factors to check when installing fiber optic cables?
You must ensure the correct fiber type and connector are used for your specific equipment.
Transcript: “Check the configuration and documentation… using the right type of fiber and… connector.” (1:15–1:24)
What is the basic internal structure of a fiber optic cable?
It includes a light source (LED or laser), a reflective core, cladding, and a protective buffer.
Transcript: “Core that is very reflective… low reflective cladding… protected with a buffer coating…” (1:43–1:57)
What is the ferrule in a fiber optic connector?
It’s the protective casing around the exposed fiber at the connector end.
Transcript: “It has a protective ferrule around the outside of the fiber.” (2:02–2:07)
What are the two main types of fiber optic cabling?
Multimode fiber and single-mode fiber.
Transcript: “Two different types… One is a multi-mode fiber and the other is a single-mode fiber.” (2:28–2:33)
What are key characteristics of multimode fiber?
Used for short distances (up to ~2 km), uses LEDs, has a large core, and allows multiple light paths.
Transcript: “Short range… up to around 2 kilometers… LED… large core… different modes…” (2:35–3:03)
What defines single-mode fiber and when is it used?
It’s used for long-distance transmission (up to 100 km), uses lasers or bright LEDs, and allows only a single light path due to its small core.
Transcript: “Longer distance… up to 100 kilometers… laser… smaller core… single mode of light…” (3:16–3:43)
