The connection points for optical cables are typically labeled as “Optical,” “Digital Out (Optical),” or “Toslink. ” Locate the **optical output port** on your TV. Connect the other end to the corresponding. Before diving into where to connect an optical cable, it's essential to familiarize yourself with the types you'll encounter. Optical cables are becoming increasingly popular for transmitting high-quality audio signals between devices. This transmits audio data digitally for pristine sound quality. You may also want to know: Are Bing. The optical audio port, also known as TOSLINK, can be useful for connecting older sound systems or linking devices like soundbars to TVs.