A digital optical cable is a single cable connection used to send digital surround sound signals between audio hardware, such as a television and surround sound receiver. It is one of the highest quality cable connections, allowing you to hear the best audio created by the source hardware. Because it is a single cable it only takes a moment or two to completely connect your equipment.
Connect the digital optical audio cable into the "Digital Audio Out" port on the television, or other hardware you want the audio source to travel from.
Insert the other end of the cable into the "Digital Audio In" port on the surround sound receiver.
Power on the two devices and select "Digital Audio" as the audio input on the surround sound receiver. The audio from the connected source device is now produced by the surround sound system.