EC20 CAT-4 LTE 4G GNSS Ultra-compact Nano Modem

The 7Semi EC20 Cat 4 LTE 4G GNSS Nano Modem is a compact cellular communication module based on the Quectel EC20CEFILG-128-SGNS, designed for high-speed wireless connectivity and satellite-based positioning in embedded, IoT, and industrial applications. Supporting LTE Cat 4 technology, the modem offers theoretical download speeds of up to 150 Mbps and upload speeds of up to 50 Mbps, with backward compatibility for supported 3G and 2G networks.

The integrated multi-constellation GNSS receiver supports GPS, GLONASS, BeiDou, Galileo, and QZSS for positioning and location-based applications. USB and UART communication capabilities enable integration with compatible host controllers and computing platforms, while external antenna connectivity supports cellular reception and satellite positioning.

Designed for applications such as remote monitoring, industrial automation, asset tracking, telemetry, and IoT gateways, the modem combines cellular data communication and GNSS functionality in a compact platform suitable for space-constrained embedded systems.

Features:

• 4G LTE Cat 4 Connectivity: Supports high-speed LTE communication with backward compatibility for supported 3G and 2G cellular networks.

• High-Speed Data Transmission: Delivers theoretical LTE download speeds up to 150 Mbps and upload speeds up to 50 Mbps.

• Multi-Constellation GNSS: Supports GPS, GLONASS, BeiDou, Galileo, and QZSS for satellite-based positioning and tracking applications.

• USB & UART Communication: Supports USB and serial communication for integration with compatible computers, microcontrollers, and embedded systems.

• Nano SIM Connectivity: Supports cellular network access through a Nano SIM card when equipped with the corresponding onboard socket.

• Multi-Band Cellular Support: Supports multiple LTE frequency bands along with compatible legacy cellular technologies for regional network connectivity.

• External Antenna Connectivity: Supports external cellular and GNSS antennas for wireless communication and positioning applications.

• AT Command Control: Enables modem configuration, cellular network management, and data communication using supported AT commands.

• Side-Mounted Reset Switch: Features an easily accessible reset button on the side of the PCB for convenient modem resetting.

• Compact Modem Design: Integrates LTE communication and GNSS positioning capabilities for space-constrained IoT and embedded applications.

• Industrial IoT Applications: Suitable for remote monitoring, telemetry, asset tracking, automation, and cellular gateway development.

Resources

• Quectel EC20 LTE Specification
• Internet connection on Raspberry Pi using 4G modem - User Guide
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