LC duplex fiber optic connectors carry MADI (Multichannel Audio Digital Interface, 64 channels) or AES67 audio-over-IP over single-mode or multimode fiber, immune to all electromagnetic interference.
| Pin | Name | Function | Type |
|---|---|---|---|
| TX | TX Fiber | Optical transmit from audio device | BUS |
| RX | RX Fiber | Optical receive to audio device | BUS |