| PIN | I/O | Function |
|---|---|---|
| 1 | O | RxD, Serial Data Transmit – COM2 |
| 2 | - | - |
| 3 | I/O | CAN High |
| 4 | I/O | CAN Low |
| 5 | O | +12 V Power |
| Chassis | Ground |
| PIN | I/O | Function |
|---|---|---|
| 1 | O | TxD, Serial Data Transmit – COM1 - Firmware Upgrade |
| 2 | I | RxD, Serial Data Receive – COM1 - Firmware Upgrade |
| 3 | O | Digital Output 1 - Lap pulse/toggle |
| 4 | O | Digital Output 2 - Unused |
| 5 | O | +12 V Power |
| Chassis | Ground |