Connecting an optical cable, also known as a TOSLINK cable, is straightforward: Carefully align the connector with the port, ensuring the shape matches, and gently push it in until you feel a click. This transmits audio data digitally for pristine sound quality. However, for those new to this technology, inserting an optical cable correctly can be a daunting task. The number one cause of signal loss in optical fiber installations is dirt on. Fiber optic networks have evolved into the basis of modern communication, from 5G traffic to cloud data transmission. You may also want to know: Are Bing.