| PIN | I/O | Function |
|---|---|---|
| 1 | I | Power+ |
| 2 | O | Digital Output / Open Drain Tolerant |
| 3 | I | Ground |
| PIN | I/O | Function |
|---|---|---|
| 1 | NA | NA |
| 2 | NA | NA |
| 3 | I/O | CAN High (PORT A) |
| 4 | I/O | CAN Low (PORT A) |
| 5 | O | +V Power |
| Lemo Shell | I | Ground |
| PIN | I/O | Function |
|---|---|---|
| 1 | I | External Microphone Input |
| 2 | I | External Microphone Bias |
| 3 | I | External Microphone Detect |
| 4 | I | Microphone Ground |