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

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

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

IPEX Connector (J24)

This connector provides a 4 Lane CSI/MIPI Camera connection, as well as USB3_2 and I2C. Specifically designed to be used with EchoMAV cameras, but can be adapter for other use cases where a fully shielded/flexible microcoax assembly is required.

Connector: J24, Part Number: 20682-030E-02 Mating Connector: EchoMAV IPEX Cable Assembly

Pin Number	Direction	Voltage	Pin Description
1	Pwr	+5V	PWR OUT
2	Pwr	+5V	PWR OUT
3	Pwr	GND	GND
4	Pwr	GND	GND
5	NA	NA	NC
6	IO	+5V	USB VBus
7	IO	Diff Signal	USB D+
8	IO	Diff Signal	USB D-
9	IO	Diff Signal	USB Rx+
10	IO	Diff Signal	USB Rx-
11	IO	Diff Signal	USB Tx+
12	IO	Diff Signal	USB Tx-
13	IO	+1.8v	I2C SCL
14	IO	+1.8V	I2C SDL
15	IO	Diff Signal	CAM0_D0-
16	IO	Diff Signal	CAM0_D0+
17	IO	Diff Signal	CAM0_D1-
18	IO	Diff Signal	CAM0_D1+
19	IO	Diff Signal	CAM0_CLK-
20	Pwr	Diff Signal	CAM0_CLK+
21	Pwr	+3.3V	CAM0_GPIO
22	Pwr	+3.3V	CAM0_MCLK
23	Pwr	Diff Signal	CAM0_D2-
24	Pwr	Diff Signal	CAM0_D2+
25	Pwr	Diff Signal	CAM0_D3-
26	Pwr	Diff Signal	CAM0_D3+
27	IO	+1.8V	CAM0_SCL0
28	IO	+1.8V	CAM0_SDAO
30	NA	NA	NC
30	NA	MA	NC

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
4	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_1 (J36)

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: J36, Part Number: Molex 105450-0101 Mating Connector: USB-C Cables/Devices

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 g
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

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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. ↩