TOSlink from (Toshiba Link) is a standardised optical fiber connection system. Also known generically as an optical audio cable, its most common use is in consumer audio equipment (via a digital optical socket), where it carries digital audio stream from components such as, CD, DVD and Blu-ray players, computers, and modern video game consoles, to an AV receiver that can decode the stream of audio and output it through a set of loudspeakers. The optical signal is a red light carried over fiber cable.