Which component is NOT a part of a basic fiber optic system?

A basic fiber optic system typically consists of a transmitter, fiber optic cable, and a receiver. The transmitter converts electrical signals into light signals, which then travel through the fiber optic cable. At the other end, the receiver converts the light signals back into electrical signals so that the data can be processed or used as needed.

The repeater, while important in certain configurations to extend the distance that signals can travel and to regenerate signals for longer runs, is not considered a fundamental component of every basic fiber optic system. It comes into play in more complex scenarios where the distance between the transmitter and receiver exceeds the distance limitation of the fiber optic cable, thus not being essential for a basic setup. This is why the repeater is identified as the component that is not part of a basic fiber optic system.