Technical Details

This section introduces the concepts and terms that are crucial for the understanding, implementation and use of NVIDIA Jetson Nano 4G/LTE Cellular Modem Kit

Pinout

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Pin Descriptions

Pin NumberLinux GPIOPin NameDescription
11GPIO50USER LEDActive HIGH, to switch on the USER LED, the pin's state should be HIGH.
29GPIO149USER BUTTONThis pin normally pulled-down to ground. When the button is pressed, pin switches to LOW.
36GPIO51W_DISABLEThis pin is used to turn Airplane Mode on the module, by pulling it HIGH.
15GPIO194PWR_DISPower 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 JumperCorresponding GPIODefault StatePurposeAffect of changing the default state
SJ1GPIO50CONNECTEDCut to disconnect USER LEDCannot use user LED.
SJ2GPIO194CONNECTEDCut to disconnect from HAT_PWR_OFFCannot control the power of the HAT.
SJ3GPIO149CONNECTEDCut to disconnect USER BUTTONCannot use user button.
SJ4GPIO51CONNECTEDCut to disconnect from W_DISABLECannot disable wireless communication.

Specifications

Quectel EG25-G LTE Cat 4 Mini PCIe Module
RegionGlobal
Frequency BandsLTE-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
RegulatoryGCF, 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