Which type of cable has a maximum length of 3000 meters for backbone installations?

Which type of cable has a maximum length of 3000 meters for backbone installations?

• A. Multimode fiber optic cable
• B. UTP cable
• C. Singlemode fiber optic cable
• D. Copper cable

Answer: (C)

The maximum length of 3000 meters for backbone installations applies to singlemode fiber optic cable. Singlemode fiber is designed for long-distance transmission, typically allowing data to be sent over long distances with minimal signal loss and distortion. This characteristic makes it ideal for backbone installations, where signals need to travel across large campuses or between buildings. Singlemode fiber has a smaller core diameter and utilizes a single wavelength of light, which enables it to maintain strength and integrity over these extended lengths. In contrast, multimode fiber optic cables, while capable of handling data over shorter distances, typically have limitations of around 300 meters for connections to a switch, depending on the type of equipment used. UTP (Unshielded Twisted Pair) cable and copper cables have their own restrictions, with effective transmission distances usually limited to 100 meters for reliable performance.

The maximum length of 3000 meters for backbone installations applies to singlemode fiber optic cable. Singlemode fiber is designed for long-distance transmission, typically allowing data to be sent over long distances with minimal signal loss and distortion. This characteristic makes it ideal for backbone installations, where signals need to travel across large campuses or between buildings. Singlemode fiber has a smaller core diameter and utilizes a single wavelength of light, which enables it to maintain strength and integrity over these extended lengths.

In contrast, multimode fiber optic cables, while capable of handling data over shorter distances, typically have limitations of around 300 meters for connections to a switch, depending on the type of equipment used. UTP (Unshielded Twisted Pair) cable and copper cables have their own restrictions, with effective transmission distances usually limited to 100 meters for reliable performance.