Pinout

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Pin Descriptions

Pin Number	Linux GPIO	Pin Name	Description
11	GPIO50	USER LED	Active HIGH, to switch on the USER LED, the pin's state should be HIGH.
29	GPIO149	USER BUTTON	This pin normally pulled-down to ground. When the button is pressed, pin switches to LOW.
36	GPIO51	W_DISABLE	This pin is used to turn Airplane Mode on the module, by pulling it HIGH.
15	GPIO194	PWR_DIS	Power regulator control. Normally pulled-down, when this pin drove to HIGH, Hat's power will cut off.

Layout

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Dimension

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Compatible Mini PCIe Modules

If one is looking to use different mini PCIe modules other than the ones mentioned below, it should be compared with the pinout of mini PCIe below. The following mentioned pins are connected to the Jetson Nano HAT.
The minimum requirement is to match VCC_3V3, GND, USIM_VDD, USIM _DATA, USIM_CLK, USIM_RST, USB_DM & USB_DP

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Power

When you use the Cellular Modem Kit with Jetson Nano, you must use a good power supply. Jetson Nano already needs a lot of power with its powerful features. Add to that LTE Connectivity, if you don't use a good power supply you will have problems.

Strongly Recommend

On 4GB Jetson Nano sets, power the system with an adapter that can provide min 5V 4A power from the Power Jack (J25) input.

Do not use micro USB socket for power in both 4GB and 2GB versions. Micro USB Connector power capacity is very low.

In the 2GB Version, when powering via Type C connector, do not only power over PC USB or a simple phone charger adapter. Use an adapter that can provide a minimum of 5V 3A.

LEDs

PWR LED: When the module is powered up, this RED led turns on
STAT LED: This BLUE led indicates the status of the connection. When the connection is established and data is being transmitted/received, this led will blink at special intervals. Otherwise, if there is no connection, the led will remain off.
USER LED: It is a programmable user-led can be controlled from the GPIO50 of Jetson Nano for debugging or just fun.

Buttons

User Button: It is a programmable user button that is connected to GPIO149. It reads HIGH by default.

Solder Jumper(SJ)

When you observe the HAT, you will come across some solder Jumpers marked as SJx (SJ1, SJ2, SJ3, etc). These solder jumpers are either connected or disconnected by default. These can be used to enable or disable the default use case. These SJ are provided for the cases where the specific GPIO are conflicting with the users requirement. Disconnecting the jumpers may lead to loss in some programmable feature.

Disconnecting: Cut the narrow trace between the middle of these solder jumper with a utility knife.

The SJ details of the HAT(v1.0) are mentioned below.

Solder Jumper	Corresponding GPIO	Default State	Purpose	Affect of changing the default state
SJ1	GPIO50	CONNECTED	Cut to disconnect USER LED	Cannot use user LED.
SJ2	GPIO194	CONNECTED	Cut to disconnect from HAT_PWR_OFF	Cannot control the power of the HAT.
SJ3	GPIO149	CONNECTED	Cut to disconnect USER BUTTON	Cannot use user button.
SJ4	GPIO51	CONNECTED	Cut to disconnect from W_DISABLE	Cannot disable wireless communication.

Specifications

	Quectel EG25-G LTE Cat 4 Mini PCIe Module
Region	Global
Frequency Bands	LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28 LTE-TDD: B38/B39/B40/B41 WCDMA: B1/B2/B4/B5/B6/B8/B19 GSM: B2/B3/B5/B8
Regulatory	GCF, CE , UKCA, PTCRB, FCC, IC, Anatel, IFETEL, KC, NCC, JATE/TELEC, RCM, ICASA

Data

LTE

• LTE-FDD: Max. 150 Mbps downlink/Max. 50 Mbps uplink
• LTE-TDD: Max. 130 Mbps downlink/Max. 30 Mbps uplink

UMTS

• DC-HSDPA: Max. 42 Mbps downlink
• HSUPA: Max. 5.76 Mbps uplink
• WCDMA: Max. 384 kbps downlink/Max. 384 kbps uplink

GSM

• EDGE: Max. 296 kbps downlink/Max. 236.8 kbps uplink
• GPRS: Max. 107 kbps downlink/Max. 85.6 kbps uplink

GNSS

GPS/GLONASS/BDS/Galileo/QZSS (Optional)

Environmental

Operating Temperature Range: -35 to +75 °C
Extended Temperature Range: -40 to +80 °C

Reports, and Other Resources

Quectel EG25-G Mini PCIe LTE Standard Specification