TOSLINK carries S/PDIF digital audio over a plastic optical fiber cable, completely eliminating ground loops and electrical interference. Used on TVs, AV receivers, soundbars, PS3/PS4/PS5, and Xbox consoles.
| Pin | Name | Function | Type |
|---|---|---|---|
| TX | Transmitter | LED optical transmitter (660nm) | BUS |
| RX | Receiver | Photodiode optical receiver | BUS |