PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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multi-mode
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single-mode
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Either A or B
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None of the above
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Detailed explanation-1: -Singlemode fibre has a much smaller core size of 9 microns and has a single light path and can travel much longer distances of up to 100km.
Detailed explanation-2: -Single-mode fibre can go as far as 40 km or more without hurting the signal, making it ideal for long-haul applications.
Detailed explanation-3: -Single Mode fibers are identified by the designation OS or Optical Single-mode Fiber. Single Mode cable has a much smaller core (8-9um) than multimode cable and uses a single path (mode) to carry the light. The main difference between single mode OS1 and OS2 is cable construction rather than optical specifications.
Detailed explanation-4: -It’s known that single mode fiber is suitable for long-distance applications, while multimode optical fiber is designed for short-distance runs.