Which type of cable has a minimum bend radius that can range from 10 to 30 times its diameter?

Which type of cable has a minimum bend radius that can range from 10 to 30 times its diameter?

• A. Backbone cable
• B. High-performance four-pair cable
• C. Optical Fiber cable
• D. Coaxial cable

Answer: (C)

Bend radius is about how tightly you can bend a cable without causing signal loss or damage. Optical fiber carries light through a very thin glass core, and when you bend the fiber too sharply, light can leak out of the core or create microbends that scatter light, raising attenuation or breaking the signal path. Because fiber is so sensitive to bending, manufacturers specify a fairly large minimum bend radius, often expressed as a multiple of the cable’s overall diameter. A range from about 10 to 30 times the diameter covers different fiber constructions and installation scenarios—some designs tolerate tighter bends than others, but all require gentle bending to keep the signal intact. This is why optical fiber cables are associated with that 10–30× diameter guideline.

Bend radius is about how tightly you can bend a cable without causing signal loss or damage. Optical fiber carries light through a very thin glass core, and when you bend the fiber too sharply, light can leak out of the core or create microbends that scatter light, raising attenuation or breaking the signal path. Because fiber is so sensitive to bending, manufacturers specify a fairly large minimum bend radius, often expressed as a multiple of the cable’s overall diameter. A range from about 10 to 30 times the diameter covers different fiber constructions and installation scenarios—some designs tolerate tighter bends than others, but all require gentle bending to keep the signal intact. This is why optical fiber cables are associated with that 10–30× diameter guideline.