EQX2G-X – Quad-Band GSM/GPRS Cellular Expansion Module for EQSP32

Description

The EQX2G adds carrier-grade 2G GSM/GPRS connectivity to the EQSP32 Industrial IoT controller, enabling SMS, USSD, and packet data (GPRS) for remote telemetry, alerts, and cloud backhaul.

The module integrates a quad-band modem (SIM800-class) with a SIM interface and antenna port, and is designed for fast, reliable deployment in industrial environments. In line with other EQX expansions, the unit is DIN-rail mountable, powered directly from the EQSP32 expansion connector, and is auto-detected at power-up for true plug-and-play operation.

The EQX2G supports quad-band operation (GSM850, EGSM900, DCS1800, PCS1900), ensuring reliable connectivity in most regions worldwide where 2G service is available. It provides a standard SIM card slot (2FF, 1.8V/3V) and an external antenna port to guarantee stable network access. With GPRS multi-slot class 12 support and coding schemes CS-1 to CS-4, the module enables applications such as remote MQTT communication, HTTP requests, and SMS/USSD messaging without requiring additional hardware.

Designed for industrial IoT applications, the EQX2G provides both data and messaging capabilities to extend the communication options of EQSP32. SMS can be used for alert notifications in case of critical events, while GPRS data allows the controller to maintain secure connections to cloud services or communicate with remote servers when Ethernet or Wi-Fi are unavailable.

Fully supported by the EQ-AI generative AI model, the EQX2G offers simplified setup and operation. EQ-AI assists in generating application code by simply describing the desired functionality, such as sending SMS alerts, performing HTTP requests, or publishing MQTT data over GPRS. The generated code automatically includes the appropriate standard GSM AT commands, ensuring seamless control of the SIM800C GSM/GPRS core without requiring the developer to manage low-level details.

The EQX2G follows the established EQX expansion module format, with a DIN-rail compatible enclosure and direct plug-in connectivity to the EQSP32 expansion bus. It requires no external power supply, communicates through a dedicated expansion interface, and supports firmware updates via its front-facing USB-C port, ensuring continued access to the latest features and improvements.

Key Features of EQX2G:

• Quad-Band GSM/GPRS: Supports GSM850, EGSM900, DCS1800, and PCS1900 for worldwide 2G connectivity.
• GPRS Data Services: Multi-slot class 12 with coding schemes CS-1 to CS-4, supporting uplink and downlink transfer rates up to 85.6 kbps.
• Messaging Support: Full SMS functionality in Text and PDU modes, plus USSD support for interactive network services.
• SIM Card Interface: Standard 2FF SIM slot, compatible with 1.8V and 3V SIM cards.
• SMA External Antenna: Strong and reliable GSM signal reception in industrial environments.
• Power and Status LEDs: Visual indicators for easy monitoring.
• Seamless Integration: Simplified programming via the EQSP32 library API and EQ-AI code generation assistant.
• Automatic Detection: EQX2G is automatically detected by EQSP32 upon power-up for a plug-and-play experience.
• Field-Upgradable Firmware: Easy updates via the front-facing USB-C port, ensuring access to the latest features.
• DIN-Rail Installation: Compact enclosure mounts directly on DIN-rail; slide to connect to EQSP32 via board-to-board expansion connector.

Technical Specifications of EQX2G

EQX2G Functional Block diagram

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