Connectors and pinouts
Board to board bottom connector

matching connector: ept 404-52080-51
ready to connect with DroneCore.Power
Bottom B2B
1
reserved
41
reserved
2
MOD_SLEEP
42
reserved
3
I2C1_SDA
43
UART1_RX
4
I2C1_SCL
44
UART1_TX
5
AUX_BAT_V
45
CAN_L_2
6
AUX_BAT_A
46
CAN_H_2
7
5V_BACKUP
47
5V_BACKUP
8
5V_BACKUP
48
5V_BACKUP
9
5V_BACKUP
49
5V_BACKUP
10
5V_BACKUP
50
5V_BACKUP
11
5V_BACKUP
51
5V_BACKUP
12
5V_BACKUP
52
5V_BACKUP
13
GND
53
GND
14
GND
54
GND
15
GND
55
GND
16
GND
56
GND
17
GND
57
GND
18
GND
58
GND
19
GND
59
GND
22
GND
60
GND
21
GND
61
GND
22
GND
62
GND
23
GND
63
GND
24
GND
64
GND
25
GND
65
GND
26
GND
66
GND
27
GND
67
GND
28
5V_EXTERN
68
5V_EXTERN
29
5V_EXTERN
69
5V_EXTERN
30
5V_EXTERN
70
5V_EXTERN
31
5V_EXTERN
71
5V_EXTERN
32
5V_EXTERN
72
5V_EXTERN
33
5V_EXTERN
73
5V_EXTERN
34
5V_EXTERN
74
5V_EXTERN
35
VDD_MAIN
75
VDD_MAIN
36
VDD_MAIN
76
VDD_MAIN
37
VDD_MAIN
77
VDD_MAIN
38
VDD_MAIN
78
VDD_MAIN
39
VDD_MAIN
79
VDD_MAIN
40
VDD_MAIN
80
VDD_MAIN
The Cube connectors
all Cube related connector signal names come from official The Cube autopilot carrier board git.

AUTOPILOT CONNECTOR
connector compatible with The Cube Autopilot
BAT_SENS
matching connector JST GHR-03V-S
1
BAT_VOLTAGE_SENS_PROT
2
BAT_CURRENT_SENS_PROT
3
GND
ADC
matching connector JST GHR-03V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A current limitation
1
5V
2
PRESSURE_SENS_IN
3
GND
PPM
matching connector JST GHR-03V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A
1
PPM_SBUS_PROT
2
5V
3
GND
BEEP
matching connector Hirose DF13-2S-1.25C
1
BUZZER+
2
BUZZER-
GPS2
matching connector JST GHR-06V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A
1
5V
2
SERIAL4_TX
3
SERIAL4_RX
4
I2C_2_SCL
5
I2C_2_SDA
6
GND
GPS1
matching connector JST GHR-08V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A
1
5V
2
SERIAL3_TX
3
SERIAL3_RX
4
I2C_1_SCL
5
I2C_1_SDA
6
SAFETY
7
IO-LED_SAFET_PROT
8
GND
I2C
matching connector JST GHR-04V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A
1
5V
2
I2C_2_SCL
3
I2C_2_SDA
4
GND
SERIAL1
matching connector JST GHR-06V-S
SERIAL1 connector has separate 5V protected line, with 1A current limitation
1
5V
2
SERIAL1_TX
3
SERIAL1_RX
4
SERIAL1_CTS
5
SERIAL1_RTS
6
GND
SERIAL5
matching connector JST GHR-06V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A
1
5V
2
SERIAL5_TX
3
SERIAL5_RX
4
S.BUS_OUT
5
NC
6
GND
CAN1
matching connector JST GHR-04V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A
1
5V
2
CAN_H_1
3
CAN_L_1
4
GND
CAN2
matching connector JST GHR-04V-S
all peripheral connectors (except SERIAL1) shares 5V protected power supply with 1,5A
CAN2 is also routed to B2B connector, so if DroneCore.Power is connected, CAN2 is natively interconnected
1
5V
2
CAN_H_2
3
CAN_L_2
4
GND
PWM1
matching connector JST GHR-08V-S
1
IO-CH1-PROT
2
IO-CH2-PROT
3
IO-CH3-PROT
4
IO-CH4-PROT
5
IO-CH5-PROT
6
IO-CH6-PROT
7
IO-CH7-PROT
8
GND
PWM2
matching connector JST GHR-08V-S
1
IO-CH8-PROT
2
FMU-CH1-PROT
3
FMU-CH2-PROT
4
FMU-CH3-PROT
5
FMU-CH4-PROT
6
FMU-CH5-PROT
7
FMU-CH6-PROT
8
GND
Nvidia Jetson connectors

GPS (Jetson)
matching connector JST GHR-06V-S
UART and I2C -> 3V3 voltage logic
5V supply shared with SPI0 (Jetson) connector and is limited to 480mA
1
5V
2
UART0_Tx
3
UART0_Rx
4
I2C0_SCL
5
I2C0_SDA
6
GND
SPI0 (Jetson)
matching connector JST GHR-08V-S
3V3 SPI voltage logic
5V supply shared with GPS (Jetson) connector and is limited to 480mA
3V3 supply is shared with 3V3 to CSIB/CSID/CSIF ports (current limited to 1.3A)
1
5V
2
SPI0_CS1
3
SPI0_CS0
4
SPI0_MISO
5
SPI0_CLK
6
SPI0_MOSI
7
3.3V supply
8
GND
FAN1
FAN1 and FAN2 are connected in parallel
standard fan connector, matching with Molex 47054-1000 header
only one 4-pin fan controlled with pwm/tach can be connected
for second fan choose simple 2-wire DC fan
shares 5V supply with FAN2 and ETHERNET connector with 480mA current limitation
1
GND
2
5V
3
FAN_TACH
4
FAN_PWM
FAN2
matching with Molex 51021-0400 cable header
compatible with xavier nx original cooler
shares 5V supply with FAN1 and ETHERNET connector with 480mA current limitation
1
FAN_PWM
2
FAN_TACH
3
5V
4
GND
ETHERNET
687116183722 connector type
compatible with standard 16 pin / 0.5mm pitch same-side contacts FPC cables
to be able to connect Jetson to network via standard ethernet cable, use aepilot1_ethernet_expansion_board
shares 5V supply with FAN1 and FAN2 connectors with 480mA current limitation
1
GBE_B3_P
2
GBE_B3_N
3
GND
4
GBE_M2_P
5
GBE_M2_N
6
GND
7
GBE_M1_P
8
GBE_M1_N
9
GND
10
GBE_M0_P
11
GBE_M0_N
12
GND
13
GBE_LED_LINK
14
GBE_LED_ACT
15
5V
16
5V
CSI D (4-lanes CSI)
501951-2210 connector type
4 lanes MIPI CSI connectors
separate MCLK pin (pin 122 on Jetson)
I2C and PWND are 3V3 logic
pay attention to cable pins orientation (same / opposite side contacts). Cameras from different manufacturers can have different pin order, so wrong cable can cause short-circuit!
3V3 power to this connector is shared with CSIB/CSIF with current limit of 1.3A
1
3V3
2
I2C_SDA
3
I2C_SCL
4
GND
5
MCLK
6
PWDN
7
GND
8
CSI_D3_P
9
CSI_D3_N
10
GND
11
CSI_D2_P
12
CSI_D2_N
13
GND
14
CSI_CLK_P
15
CSI_CLK_N
16
GND
17
CSI_D1_P
18
CSI_D1_N
19
GND
20
CSI_D0_P
21
CSI_D0_N
22
GND
CSI A,B,C,E,F (2-lines CSI)
501951-2210 connector type
2 lines MIPI CSI connectors
CSI A,B,C shares the same MCLK pin (pin 116 on Jetson)
CSI E,F shares the same MCLK pin (pin 216 on Jetson)
I2C and PWDN are 3V3 logic
Connectors protected against overcurrent
CSI A/C/E are grouped together on 3V3 supply line with 1.3A current limit
CSI B/D/F are grouped together on 3V3 supply line with 1.3A current limit
pay attention to cable pins orientation (same / opposite side contacts). Cameras from different manufacturers can have different pin order, so wrong cable can cause short-circuit!
1
3V3
2
I2C_SDA
3
I2C_SCL
4
GND
5
MCLK
6
PWDN
7
GND
8
NC
9
NC
10
GND
11
NC
12
NC
13
GND
14
CSI_CLK_P
15
CSI_CLK_N
16
GND
17
CSI_D1_P
18
CSI_D1_N
19
GND
20
CSI_D0_P
21
CSI_D0_N
22
GND
USB A (standard USB C connector)
USB 3.0 standard
protected against overcurrent
voltage levels according to usb standards
current limit 2.5A
USB B,C,D (15 pin ZIF connectors)
USB 3.0 standard
USB D placed on the bottom side of board
connectors are protected against overcurrent, separately on every port.
compatible with Molex 538-15021 cable series
voltage levels according to usb standards
each connectors current limit is set to 2.5A
these connectors can be connected/unconnected only when system is power-off !
1
GND
2
RX_N
3
RX_P
4
GND
5
TX_N
6
TX_P
7
GND
8
D_N
9
D_P
10
GND
11
GND
12
5V
13
5V
14
5V
15
5V
USB E (JST GH connector)
USB 2.0 standard
protected against overcurrent
voltage levels according to usb standards
current limit 2.5A
1
GND
2
D_P
3
D_N
4
VBUS
CONTROL
Nvidia Jetson control pins
1.8V logic

1
GND
2
SYS_RST
3
GND
4
FC_REC (Force recovery)
5
GND
6
PWR_BTN
GPIOS
Nvidia Jetson GPIOS connector
pins 1,2 are connected to Jetson debug UART which natively supports serial console. UART number varies depending on type of Jetson.
pins 1 - 4 -> 3V3 logic
pins 5,6 -> 1.8V logic

1
UART_RXD (Debug)
2
UART_TXD (Debug)
3
GPIO_EXP1
4
GPIO_EXP2
5
GPIO_13
6
GND
USB_DEV
USB type micro B connector
possible to use only as jetson usb-device
when micro usb cable connected between board and host PC, Jetson acts like usb-device.
USB_DEV (expansion connector)
JST SM04B-SURS-TF(LF)(SN) connector type
possibility to route USB_DEV signals to drone case
1
GND
2
D_P
3
D_N
4
VBUS
If expansion cables are long, be aware about using suitable cable with proper shielding.
HDMI
HDMI Type D connector receptacle
connect with micro HDMI cable to external display
M2 key E
connector includes PCIE, USB2.0, USART (shared with GPS(Jetson) connector, and I2C buses
tested wifi cards: Intel AC-9260NGW, Intel AC-8265NGW
M2 key M (Bottom side)
connector includes PCIE x4 and I2C bus
ready to mount NVME SSD in M2 2242 size
Only NVME (PCIE) SSDs works with NVIDIA Jetson
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