| Name | Function | Options |
| SJ1 | I²C2 Supply-Voltage at X4 | 5V or 3V3 |
| SJ2 | PPM-Out Supply-Voltage at X5 | 5V or VBAT |
| SJ3 | I²C2 SCL Connection to onboard HMC5883L | connected or disconnected (note: SDA/SCL are swapped! Fix it by doing SJ3-in to SJ4-out and SJ4-in to SJ3-out) |
| SJ4 | I²C2 SDA Connection to onboard HMC5883L | connected or disconnected (note: SDA/SCL are swapped! Fix it by doing SJ3-in to SJ4-out and SJ4-in to SJ3-out) |
| SJ5 | UART1 Supply-Voltage at X6 | 5V or 3V3 |
| SJ6 | CAN Supply-Voltage at X9 | 5V or 3V3 |
| SJ7 | CAN Termination | open/closed |
| SJ100 | Flasher Supply Voltage at X100 | 5V or VBAT |
| SJ101 | Buzzer Supply Voltage at X100 | 5V or VBAT |
| SJ102 | UART3 Supply Voltage at X102 | 5V or 3V3 |
| SJ103 | I²C-Actor Supply Voltage at X101 | 5V or 3V3 |
| SJ104 | PPM Recevier Supply Voltage at X104 | 5V or 3V3 |
| SJ105 | UART6 Supply Voltage at X106 | 5V or 3V3 |
| SJ106 | PPM-Out Supply-Voltage at X105 | 5V or VBAT |
| SJ107 | VBAT Sensing | open/closed |
| Name | Bus | Function | Pins |
| X1 | Power-Out | | 1-GND, 2-VBAT_ONOFF |
| X4 r0 | I²C2 | I2C-Device Bus | 1-GND, 2-SCL, 3-SDA,4-VCC |
| X4 r1 | I²C2 | I2C-Device Bus | 1-GND, 2-SDA, 3-SCL,4-VCC |
| X5 | PPM | Servo Output | |
| X6 | UART0 | Shell | 1-GND, 2-RX, 3-TX, 4-VCC |
| X7 | JTAG | Debugging & Programming | 1-TDO, 2-TDI, 3-TCK, 4-TMS, 5-TRST, 6-RTCK, 7-RESET, 8-GND, 9-3.3V, 10-GND |
| X8 r0 | UART1, I²C2, GPS | use for GPS module | 1-GND, 2-SDA, 3-SCL, 4-GPS_1_HZ, 5-GPS_RESET, 6-RX, 7-TX, 8-VCC |
| X8 r1 | UART1, I²C2, GPS | use for GPS module | 1-GND, 2-SCL, 3-SDA, 4-GPS_1_HZ, 5-GPS_RESET, 6-RX, 7-TX, 8-VCC |
| X9 | CAN | | 1-GND, 2-RX, 3-Tx, 4-VCC |
| X10 | Button | Power Button | 1-PB, 2-GND |
| X100 | | Buzzer + Flashlight | 1-PWR_BUZZ, 2-BUZZ, 3-GND, 4-PWR_FLASH, 5-FLASH |
| X101 | I²C1 | I2C Actor Bus | 1-GND,2-SDA,3-SCL,4-VCC |
| X102 | UART2 | Shell, RTS/CTS, Bootloader | 1-GND,2-CTS,3-RTS,4-RX,5-TX,6-VCC |
| X104 | PPM | PPM IN 1+2 | 1-GND, 2-PPM_IN_B, 3-PPM_IN_A, 4-VCC |
| X105 | PPM | Servo Output | |
| X106 | UART3 | Shell, MBUS | 1-GND, 2-RX, 3-TX, 4-VCC |
| X107 | SPI2, ADC | Extension Interface | 1-5V, 2-3V3, 3-EXTIO0, 4-EXTIO1, 5-CS, 6-SCK, 7-MOSI, 8-MISO, 9-GND, 10-EXTADC0, 11-EXTADC1, 12-GND |
| X108 | Power-In | | 1-VBAT+, 2-GND, 3-nc |