Fiber optic communication is one of the most common ways of transmitting information. Near-infrared wavelength electromagnetic radiation is used as an information signal carrier. Fiber optic cables are used as guide systems. This educational kit includes a 500 m long single-mode fiber-optic cable reel with SC-SC connectors. These connectors allow you to connect an optical fiber without significant loss in signal quality. A video camera capable of generating a continuous video signal is used as a signal source. It is connected to the transmitter. A media converter that converts electronic signals into optical ones is a transmitter. Pulse electromagnetic radiation (in optical fiber) with a wavelength of 1310 nm is converted using the receiver into an electrical signal, which is transmitted to the computer as an image. Optical signals can be additionally recorded using a highly sensitive InGaAs photodetector connected to an oscilloscope. Losses in the optical fiber can be estimated using the obtained data.