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EchoPilot Carrier Pinout

The Carrier Board is open-source, please visit the echopilot_ai_carrier repository. While you may refer to the pinout information below, also feel free to examine the pdf schematic or the full design in Kicad 7.0+.

Carrier Board Schematic

A full schematic of the carrier board is available: PDF schematic

Top Side Carrier Board

Top Side Components

Iridium Rockblock 9603 (J10)

This connector is for connection to a Rockblock Iridium 9603 modem. A straight-through cable with Molex 0510211000 connectors may be used.

Connector: J10, Part Number: 0532617010
Mating Connector: 0510211000

Pin Number Direction Voltage Pin Desription
1 Pwr GND GND
2 NA NA NC
3 Pwr OUT +5V +5V_OUT33
4 O 3.3V Iridium On/Off
5 I 3.3V TX (from modem's perspective)
6 I 3.3V Iridium Ring
7 I 3.3V Iridium Network Available
8 NA NA NC
9 NA NA NC
10 O 3.3V RX (from modem's perspective)

Note

Custom software is required to implement Iridium SBD communications. Pinmux modifications may be required pending how a software implementation leverages the Iridium modem IO.

Ethernet 2 (J9)

This connector is used for Ethernet (100 Mbps to the Jetson). This is connected to a KSZ8795CLXIC 4-port ethernet switch onboard the EchoPilot AI.

Note

The magnetics for Ethernet 2 are onboard the Carrier Board.

Connector: J9, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 IO Diff Signal Rx+
2 IO Diff Signal Rx-
3 IO Diff Signal Tx+
4 IO Diff Signal Tx-

Ethernet 1 (J15)

This connector is used for Ethernet (100 Mbps to the Jetson). This is connected to a KSZ8795CLXIC 4-port ethernet switch onboard the EchoPilot AI.

Note

The magnetics for Ethernet 1 are onboard the Carrier Board.

Connector: J15, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 IO Diff Signal Rx+
2 IO Diff Signal Rx-
3 IO Diff Signal Tx+
4 IO Diff Signal Tx-

Board to Board Jetson (J5)

This connector handles the Jetson-related board to board signals. It connects to the EchoPilot AI board.

Connector: J5, Part Number: FX23L-80P-0.5SV10
Mating Connector: FX23L-80S-0.5SV

Pin Number Direction Voltage Pin Desription
1 IO Diff Signal Jetson CAN+
2 IO Diff Signal Jetson CAN-
3 Pwr GND GND
4 IO 1.8V CAM0_SDA0
5 IO 1.8V CAM0_SCL0
6 IO 1.8V CAM0_MCLK
7 IO 1.8V CAM0_GPIO
8 Pwr GND GND
9 IO Diff Signal CAM0_D1+
10 IO Diff Signal CAM0_D1-
11 Pwr GND GND
12 IO Diff Signal CAM0_CLK+
13 IO Diff Signal CAM0_CLK-
14 Pwr GND GND
15 IO Diff Signal CAM0_D0+
16 IO Diff Signal CAM0_D0-
17 Pwr GND GND
18 IO 1.8V CAM1_SDA0
19 IO 1.8V CAM1_SCL0
20 IO 1.8V CAM1_MCLK
21 IO 1.8V CAM1_GPIO
22 Pwr GND GND
23 IO Diff Signal CAM1_D1+
24 IO Diff Signal CAM1_D1-
25 Pwr GND GND
26 IO Diff Signal CAM1_CLK+
27 IO Diff Signal CAM1_CLK-
28 Pwr GND GND
29 IO Diff Signal CAM1_D0+
30 IO Diff Signal CAM1_D0-
31 Pwr GND GND
32 IO Diff Signal CAM0_D2+
33 IO Diff Signal CAM0_D2-
34 Pwr GND GND
35 IO Diff Signal CAM0_D3+
36 IO Diff Signal CAM0_D3-
37 IO 1.8V I2SO_DIN
38 IO 1.8V nMOD_SLEEP
39 IO 1.8V SLEEP/WAKE
40 IO 1.8V I2SO_FS
41 IO Diff Signal ETH0 TX-
42 IO Diff Signal ETH0 TX+
43 IO Diff Signal ETH0 RX-
44 IO Diff Signal ETH0 RX+
45 Pwr GND GND
46 IO Diff Signal ETH2 RX+
47 IO Diff Signal ETH2 RX-
48 IO Diff Signal ETH2 TX+
49 IO Diff Signal ETH2 TX-
50 Pwr GND GND
51 IO Diff Signal JETSON USB3SS RX+
52 IO Diff Signal JETSON USB3SS RX-
53 Pwr GND GND
54 IO Diff Signal JETSON USB3SS TX+
55 IO Diff Signal JETSON USB3SS TX-
56 Pwr GND GND
57 Pwr OUT 5V USB3SS VBUS
58 IO Diff Signal JETSON USB3SS D+
59 IO Diff Signal JETSON USB3SS D-
60 Pwr GND GND
61 Pwr OUT 5V VBUS3
62 IO Diff Signal USB_3 D+
63 IO Diff Signal USB_3 D-
64 Pwr GND GND
65 Pwr 5V VBUS2
66 IO Diff Signal USB_2 D+
67 IO Diff Signal USB_2 D-
68 Pwr GND GND
69 Pwr OUT 5V VBUS1
70 IO Diff Signal USB_1 D+
71 IO Diff Signal USB_1 D-
72 Pwr GND GND
73 I 3.3V IRIDIUM RING
74 I 3.3V IRIDIUM RX UART
75 I 3.3V IRIDIUM TX UART
76 O 3.3V I2S0_SCLK
77 IO 1.8 JETSON I2C1_SDA
78 O 1.8 JETSON I2C1_SCL
79 IO 3.3 JETSON GPIO 02
80 Pwr OUT 3.3 +3.3V OUT
81 Pwr IN 5.2 +5.2V
82 Pwr IN 5.2 +5.2V
83 Pwr GND GND
84 Pwr GND GND

PWM Output from FMU (J28)

This connector provides the PWM outputs from the FMU. The EchoPilot AI's autopilot hardware consist of a main processor (FMU) and an IO processor. The IO processor provides 8 PWM outputs (labeled IO CHX below) and the FMU provides 4 PWM outputs. An important distinction between the two is that only the FMU outputs are D-Shot compatible.

The +VServo Sense input is optional and is used by the FMU to detect a drop in the VServo rail. The EchoPilot AI has a 2:1 voltage divider onboard to protect input of up to 6.6V (3.3V * 2). This is an input only, the Carrier board does not provide power to the servo voltage rail.

The EchoPilot AI comes with a PWM Breakout board which allows users to use standard Futaba-style (3 pin, 0.1" spacing) servo connectors. The PWM Breakout Board is plugged into this connector with the supplied cable.

Connector: J28, Part Number: SM14B-GHS-TB(LF)(SN)
Mating Connector: GHR-14V-S

Pin Number Direction Voltage Pin Description
1 O +3.3 IO CH1
2 O +3.3 IO CH2
3 O +3.3 IO CH3
4 O +3.3 IO CH4
5 O +3.3 IO CH5
6 O +3.3 IO CH6
7 O +3.3 IO CH7
8 O +3.3 IO CH8
9 O +3.3 FMU CH1
10 O +3.3 FMU CH2
11 O +3.3 FMU CH3
12 O +3.3 FMU CH4
13 I +5V +VServo Sense (Optional)
14 Pwr GND GND

Board to Board FMU (J6)

This connector handles the FMU-related board to board signals. It connects to the EchoPilot AI board.

Connector: J6, Part Number: FX23L-80P-0.5SV10
Mating Connector: FX23L-80S-0.5SV

Pin Number Direction Voltage Pin Desription
1 O 3.3V FMU PWM CH6
2 O 3.3V FMU PWM CH5
3 O 3.3V FMU PWM CH4
4 O 3.3V FMU PWM CH3
5 O 3.3V FMU PWM CH2
6 O 3.3V FMU PWM CH1
7 O 3.3V IO PWM CH1
8 O 3.3V IO PWM CH2
9 O 3.3V IO PWM CH3
10 O 3.3V IO PWM CH4
11 O 3.3V IO PWM CH5
12 O 3.3V IO PWM CH6
13 O 3.3V IO PWM CH7
14 O 3.3V IO PWM CH8
15 Pwr GND GND
16 Pwr GND GND
17 Pwr OUT +5V +5V OUT_11
18 O 3.3V FMU I2C_2 SCL
19 IO 3.3V FMU I2C_2 SDA
20 Pwr GND GND
21 Pwr OUT +5V +5V OUT_11
22 IO Diff Signal FMU CAN 2+
23 IO Diff Signal FMU CAN 2-
24 Pwr GND GND
25 Pwr OUT +5V +5V OUT_11
26 IO Diff Signal FMU CAN 1+
27 IO Diff Signal FMU CAN 1-
28 Pwr GND GND
29 Pwr OUT +5V +5V OUT_11
30 O +3.3V TELEM1_RTS
31 I +3.3V TELEM1_CTS
32 I +3.3V TELEM1_RX
33 O +3.3V TELEM1_TX
34 Pwr GND GND
35 I 3.3V BATTERY CURRENT SENSE1
36 I 3.3V BATTERY VOLTAGE SENSE1
36 Pwr GND GND
38 I +3.3V +VSERVO SENSE
39 Pwr GND GND
40 NA NA NC
41 Pwr OUT Pwr +5V OUT_11
42 O +3.3V SPI5 SCLK
43 I +3.3V SPI5 MISO
44 I Diff Signal SPI5_MOSI
45 O +3.3V SPI5 CS1 (PI4)
46 O +3.3V SPI5 CS2 (PI10)
47 Pwr GND GND
48 Pwr OUT +5V 5V OUT_11
49 O +3.3V GPS1 TX
50 I +3.3V GPS1 RX
51 O 3.3V FMU I2C_1 SCL
52 IO 3.3V FMU I2C_1 SDA
53 Pwr GND GND
54 I +3.3V SAFETY SWITCH IN
55 O +3.3V SAFETY SWITCH LED OUT
56 Pwr OUT +3.3V +3.3V OUT
57 O +5V BUZZER OUT
58 Pwr GND GND
59 Pwr OUT +5V +5V OUT_22
60 I +3.3V RC INPUT
61 Pwr GND GND
62 Pwr IN +5.4V +5.4V IN FMU
63 Pwr IN +5.4V +5.4V IN FMU
64 Pwr IN +5.4V +5.4V IN FMU
65 Pwr IN +5.4V +5.4V IN FMU
66 Pwr GND GND
67 Pwr GND GND
68 Pwr GND GND
69 Pwr GND GND
70 I +3.3V VDD POWER A VALID
71 I +3.3V VDD POWER B VALID
72 O +3.3V S.BUS OUTPUT
73 O 3.3V FMU UART4 TX
74 I 3.3V FMU UART4 RX
75 Pwr GND GND
76 NA NA BATTERY CURRENT SENSE2
77 NA NA BATTERY VOLTAGE SENSE2
78 NA NA SPARE ADC1
79 NA NA SPARE ADC2
80 NA NA NC
81 Pwr IN +5.2V +5.2V (JETSON POWER)
82 Pwr IN +5.2V +5.2V (JETSON POWER)
83 Pwr GND GND
84 Pwr GND GND

+Jetson I2C1 (J34)

Jetson I2C1

Connector: J34, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V_OUT33
2 Pwr +1.8B I2C_1 SCL
3 Pwr +1.8V I2C_1 SDA
4 Pwr GND GND

+5V Out (J11)

This connector provides a spare regulated +5V output.

Connector: J11, Part Number: SM02B-GHS-TB(LF)(SN)
Mating Connector: GHR-02V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V_OUT33
2 Pwr GND GND

+VBattery (J12)

This connector provides a spare raw battery voltage output (what is input to J27, XT30 power in). It is protected by a reverse polarity diode.

Connector: J12, Part Number: SM02B-GHS-TB(LF)(SN)
Mating Connector: GHR-02V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +VBATT +VBATT (unprotected)
2 Pwr OUT +VBATT +VBATT (unprotected)
3 Pwr GND GND
4 Pwr GND GND

S.Bus Out/RSSI In (J26)

This connector can be used for either S.BUS Output or RSSI Input.

Connector: J26, Part Number: SM03B-GHS-TB(LF)(SN)
Mating Connector: GHR-03V-S

Pin Number Direction Voltage Pin Description
1 I +3.3V S.Bus Out / RSSI In
2 Pwr OUT +5V +5V OUT_1 1
3 Pwr GND GND

GPS/Compass (J20)

This connector provides a Pixhawk standard GPS/Compass connection.

Connector: J20, Part Number: SM10B-GHS-TB(LF)(SN)
Mating Connector: GHR-10V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V OUT_11
2 O +3.3V GPS TX
3 I +3.3V GPS Rx
4 O +3.3V I2C 1 SCL
5 IO +3.3V I2C 1 SDA
6 I +3.3V Safety Switch In
7 O +3.3V Safety Switch LED Out
8 Pwr OUT +3.3V Safety VDD 3.3V
9 Pwr +5V Buzzer Out
10 Pwr GND GND

Jetson CAN (J7)

This connector provides a CAN interface from the Jetson. The EchoPilot AI main board has a 120 ohm termination resistor at the CAN transceiver (LTC2875).

Connector: J7, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V OUT_3 3
2 IO Diff Signal CAN+ (Jetson)
3 IO Diff Signal CAN- (Jetson)
4 Pwr GND GND

Power In (J27)

This connector provides power input to the system. The power supply should be between 7-56 VDC and should be capable of supply up to 4A.

Connector: J27, Part Number: XT30PW-M
Mating Connector: XT30U-F

Pin Number Direction Voltage Pin Description
1 Pwr GND GND
2 Pwr IN +7-56VDC +V System Input

Bottom Side Carrier Board

Bottom Side Components

Note

The MIPI CAM1 connector shown in the image abovee does NOT match the Rev1B board, which features a smaller 22 pin 0.5mm FFC connector. The documentation and pinout in this document is correct.

Nano SIM Card (J31)

A Nano SIM card holder. Used only if a M.2 3052 Key B Cellular modem is attached to J30.

MIPI Cam 2 (J14)

This connector provides a CSI/MIPI Camera connection, following the Raspberry Pi 15-pin 1mm spacing FFC standard.

Connector: J14, Part Number: 1-84952-5 Mating Connector: FFC Cable, 15 pos, 1mm pin spacing

Pin Number Direction Voltage Pin Description
1 Pwr GND GND
2 IO Diff Signal CAM1_D0-
3 IO Diff Signal CAM1_D0+
4 Pwr GND GND
5 IO Diff Signal CAM1_D1-
6 IO Diff Signal CAM1_D1+
7 Pwr GND GND
8 O Diff Signal CAM1_CLK-
9 O Diff Signal CAM1_CLK+
10 Pwr GND GND
11 IO +3.3V CAM1_GPIO
12 O +3.3V CAM1_MCLK
13 O +3.3V CAM1_SCL0
14 IO +3.3V CAM1_SDAO
15 Pwr OUT +3.3V +3.3V

MIPI Cam 1 (J8)

This connector provides a 4 Lane CSI/MIPI Camera connection, via a 22 pin 0.5mm spacing FFC connector.

Note

On Rev1B boards, this pinout is reversed from the FFC cables/cameras commonly used with RPi and Nvidia-compatible cameras. If using such a camera, we recommend using an FFC cable with a top/bottom pin arrangement such as Amphenol FF3025-CO102-022 to correct the pinout. This will be corrected in future revisions.

Connector: J8, Part Number: 2-1734592-2 Mating Connector: FFC Cable, 22 pos, 0.5mm pin spacing

Pin Number Direction Voltage Pin Description
1 Pwr GND GND
2 IO Diff Signal CAM0_D0-
3 IO Diff Signal CAM0_D0+
4 Pwr GND GND
5 IO Diff Signal CAM0_D1-
6 IO Diff Signal CAM0_D1+
7 Pwr GND GND
8 O Diff Signal CAM0_CLK-
9 O Diff Signal CAM0_CLK+
10 Pwr GND GND
11 IO Diff Signal CAM0_D2-
12 IO Diff Signal CAM0_D2+
13 Pwr GND GND
14 O Diff Signal CAM0_D3-
15 O Diff Signal CAM0_D3+
16 Pwr GND GND
17 IO +3.3V CAM0_GPIO
18 O +3.3V CAM0_MCLK
19 Pwr GND GND
20 O +3.3V CAM0_SCL0
21 IO +3.3V CAM0_SDAO
22 Pwr OUT +3.3V +3.3V

Radio In (J16)

This connector provides a optional radio input in to the autopilot. A wide range of radio protocols are supported. Please see here for example.

Connector: J16, Part Number: SM03B-GHS-TB(LF)(SN)
Mating Connector: GHR-03V-S

Pin Number Direction Voltage Pin Description
1 I +3.3V RC In
2 Pwr OUT +5V +5V OUT_22
3 Pwr GND GND

Jetson GPIO (J33)

Spare GPIO from the Jetson module.

Connector: J33, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description GPIO (Xavier) GPIO (Orin NX and Orin Nano) Jetson Pin
1 IO +1.8V GPIO 02 GPIO3_PQ.03 GPIO3_PP.06 124
2 IO +1.8V nMOD_SLEEP NA NA 178
3 IO +1.8V SLEEP/WAKE GPIO3_PEE.04 GPIO3_PEE.04 240
3 Pwr GND GND NA NA NA

V/I Sense and Analog In (J13)

This connector provides dual voltage and current sense input, for use with off-board current sensor monitor(s). These signals should be scaled to 0-3.3V or damage may occur. Your autopilot firmware will allow you to enter scaling factors for proper display of voltage/current when ground control software. This connector also provides two spare analog inputs to the FMU.

Connector: J13, Part Number: SM08B-GHS-TB(LF)(SN)
Mating Connector: GHR-08V-S

Pin Number Direction Voltage Pin Description STM32 Pin
1 Pwr +5.0V +5V Out NA
2 I +3.3V Voltage Sense1 PA0
3 I +3.3V Current Sense1 PA1
4 I +3.3V Voltage Sense2 PA2
5 I +3.3V Current Sense2 PA3
6 I +3.3V Spare ADC 1 PC4
7 I +3.3V Spare ADC 2 PA4
8 Pwr GND GND NA

I2C 2 (FMU) (J25)

This connector provides a Pixhawk standard I2C connection from the FMU (I2C 2).

Connector: J25, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V OUT_1 1
2 O +3.3V I2C_2 SCL (FMU)
3 IO +3.3V I2C_2 SDA (FMU)
4 Pwr GND GND

Telem1 (J18)

This connector provides a Pixhawk standard TELEM connection from the FMU (TELEM1).

Connector: J18, Part Number: SM06B-GHS-TB(LF)(SN)
Mating Connector: GHR-06V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V OUT_1 1
2 O +3.3V Telem1 TX
3 I +3.3V Telem1 RX
4 O +3.3V Telem1 CTS
5 I +3.3V Telem1 RTS
6 Pwr GND GND

USB3_2 (J24)

This connector provides a USB3 SuperSpeed connection to the Jetson, via a TUSB8042 hub. Note that 1uF capacitors are placed near the connector on the Tx+ and TX- lines.

Connector: J24, Part Number: SM10B-GHS-TB(LF)(SN)
Mating Connector: GHR-10V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V VBus
2 IO Diff Signal USB D-
3 IO Diff Signal USB D+
4 Pwr GND GND
5 IO Diff Signal USBSS Rx-
6 IO Diff Signal USBSS Rx+
7 Pwr GND GND
8 IO Diff Signal USBSS Tx-
9 IO Diff Signal USBSS Tx+
10 Pwr GND GND

USB3_1 (J29)

This connector provides a USB3 SuperSpeed connection to the Jetson, via a TUSB8042 hub. Note that 1uF capacitors are placed near the connector on the Tx+ and TX- lines.

Connector: J29, Part Number: SM10B-GHS-TB(LF)(SN)
Mating Connector: GHR-10V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V VBus
2 IO Diff Signal USB D-
3 IO Diff Signal USB D+
4 Pwr GND GND
5 IO Diff Signal USBSS Rx-
6 IO Diff Signal USBSS Rx+
7 Pwr GND GND
8 IO Diff Signal USBSS Tx-
9 IO Diff Signal USBSS Tx+
10 Pwr GND GND

INS/RS-232 FMU UART (J32)

This connector provides an RS-232 level shifted UART from the FMU for connection to an external device, such as an Inertial Navigation System (INS).

Connector: J132, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V_OUT4 4
2 IO Diff Signal RS232 TX, UART4 (FMU)
3 IO Diff Signal RS232 RX, UART4 (FMU)
4 Pwr GND GND

CAN 2 (FMU) (J17)

This connector provides a Pixhawk standard CAN connection from the FMU (CAN 2). The EchoPilot AI main board has a 120 ohm termination resistor at the CAN transceiver (LTC2875).

Connector: J17, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V OUT_1 1
2 IO Diff Signal CAN 2+ (FMU)
3 IO Diff Signal CAN 2- (FMU)
4 Pwr GND GND

CAN 1 (FMU) (J19)

This connector provides a Pixhawk standard CAN connection from the FMU (CAN 1). The EchoPilot AI main board has a 120 ohm termination resistor at the CAN transceiver (LTC2875).

Connector: J19, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V OUT_1 1
2 IO Diff Signal CAN 1+ (FMU)
3 IO Diff Signal CAN 1- (FMU)
4 Pwr GND GND

USB2.0 #3 (J23)

This connector provides USB 2.0 connectivity from the Jetson SOM via a hub onboard the EchoPilot AI mainboard.

Connector: J23, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V VBUS (Protected 500mA)
2 IO Diff Signal USB3_D- (Jetson)
3 IO Diff Signal USB3_D+ (Jetson)
4 Pwr GND GND

USB2.0 #2 (J22)

This connector provides USB 2.0 connectivity from the Jetson SOM via a hub onboard the EchoPilot AI mainboard.

Connector: J22, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V VBUS (Protected 500mA)
2 IO Diff Signal USB2_D- (Jetson)
3 IO Diff Signal USB2_D+ (Jetson)
4 Pwr GND GND

USB2.0 #1 (J21)

This connector provides USB 2.0 connectivity from the Jetson SOM via a hub onboard the EchoPilot AI mainboard.

Connector: J21, Part Number: SM04B-GHS-TB(LF)(SN)
Mating Connector: GHR-04V-S

Pin Number Direction Voltage Pin Description
1 Pwr OUT +5V +5V VBUS (Protected 500mA)
2 IO Diff Signal USB1_D- (Jetson)
3 IO Diff Signal USB1_D+ (Jetson)
4 Pwr GND GND

M.2 Connector for Cellular Modem (J30)

This is a Key B M.2 connector for use with a 3052 form factor cellular modem, such as the Sierra Wireless EM9191. The connector includes USB3.1 connectivity to the modem ( PCIe is not supported). Attach the modem using a M2x0.4mm x 3mm wafer head screw.

A heat pad under the modem provides the option for a heat sinking solution from the cellular modem. The following components can be used to build a heat sink:

Thermal Pad between the modem and Carrier Board: Panasonic EYG-T7070A15A (cut to fit):
14x14mm heatsink mounted on the Carrier Board: CUI HSB03-141406
Heatsink Adhesive: MG Chemicals 8329TFF-25ML

Connector: J29, Part Number: SM3ZS067U310ABR1200
Mating Connector: M.2 Key B Modem, size 3052


  1. 5V_OUT1 bus is limited to a total of 500mA. 

  2. 5V_OUT2 bus is limited to a total of 500mA. 

  3. +5V_OUT3 bus is limited to a total of 1500mA by a TPS2561. 

  4. +5V_OUT4 bus is limited to a total of 1500mA by a TPS2561.