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3. Wireless module

3.1. EC20 4G Module suite​

3.1.1. Product parameters​

  • Model

    • EC20-C R2.0 Mini PCIe-C

  • Supply voltage

    • 3.3V~ 3.6V, Typical values: 3.3V

  • Working frequency band

    • TDD-LTE: B38/B39/B40/B41
    • FDD-LTE: B1/B3/B8
    • WCDMA: B1/B8
    • TD-SCDMA: B34/B39
    • GSM: 900/1800

  • Data transmission

    • TDD-LTE： Max 130Mbps (DL) Max 35Mbps (UL)
    • FDD-LTE： Max 150Mbps (DL) Max 50Mbps (UL)
    • DC-HSPA+： Max 42Mbps (DL) Max 5.76Mbps (UL)
    • UMTS： Max 384Kbps (DL) Max 384Kbps (UL)
    • TD-SCDMA： Max 4.2Mbps (DL) Max 2.2Mbps (UL)
    • CDMA： Max 3.1Mbps (DL) Max 1.8Mbps (UL)
    • EDGE： Max 236.8Kbps (DL) Max 236.8Kbps (UL)
    • GPRS： Max 85.6Kbps (DL) Max 85.6Kbps (UL)

  • Interface connector

    • USB: USB 2.0 high-speed interface, 480Mbps
    • digital voice: 1 digital voice interface (optional)
    • USIM：1.8V/3V
    • network indicator: ×2, NET_STATUS 和 NET_MODE
    • UART：×1 UART
    • reset: low level
    • PWRKEY: low level
    • antenna interface: 3 (main antenna, diversity antenna and GNSS antenna interface)
    • ADC：×2

  • Structure size

    • 51.0mm × 30.0mm × 4.9mm

  • Weight

    • about 10.5g

  • Certification

    • CCC/ NAL*/ TA

3.1.2. Real figure​

_images/module_wireless_ec20.png

3.1.3. Connection​

  • USB connection

_images/module_wireless_ec20_usb.jpg

  • SIM card Connection

_images/module_wireless_sim_connection.jpg

3.1.4. Reference firmware​

The official website of the public version of the default firmware support EC20 4G dongle module, EC200T 4G module