Which cable section connects directly to equipment in fiber optics?

The correct answer is pigtails because they are short lengths of fiber optic cable that have a connector on one end and a length of unconnectorized fiber on the other. This design allows for direct connection to fiber optic installations and equipment, enabling the final connection necessary for efficient transmission and reception of data signals.

Pigtails are typically used in fiber optic splicing applications, where they facilitate the integration of fibers into larger systems, such as optical distribution frames or patch panels. Their ability to provide a robust and reliable connection directly to equipment makes them an essential component in fiber optic networks.

The other options, while related to fiber optics, do not serve the same purpose as pigtails. For instance, patch cords normally refer to longer cables used for interconnecting different areas of a network but do not typically make the final direct connection to equipment. Electromagnetic fibers are not a recognized standard term in fiber optics and do not describe a type of cabling. Single fibers refer to a single strand of fiber optic material and are not typically used on their own for making connections without connectors or additional components.