Product information

EC20 R2.1

IoT/M2M-optimized LTE Cat 4 Module

Quectel EC20 R2.1 is a series of LTE category 4 module optimized specially for M2M and IoT applications. Adopting the 3GPP Rel. 11 LTE technology, it delivers 150Mbit/s downlink and 50Mbit/s uplink data rates. Designed in the compact and unified form factor, EC20 R2.1 is compatible with Quectel UMTS/HSPA+ UC20 module and multi-mode LTE EC20/EC21/EC25/EG25-G modules, which allows for flexible migration among them in design and manufacturing.

EC20 R2.1 is an upgraded version of EC20 R2.0. Adopting laser engraving process, EC20 R2.1 features a more fashionable appearance, strong metallic texture, better thermal dissipation capability and durable label information, which makes it ideally suited for large-scale production.

EC20 R2.1 supports Qualcomm® IZat™ location technology Gen8C Lite (GPS, GLONASS, BeiDou, Galileo and QZSS). The integrated GNSS greatly simplifies product design, and provides quicker, more accurate and more dependable positioning.

A rich set of Internet protocols, industry-standard interfaces and abundant functionalities (USB drivers for Windows 7/8/8.1/10, Linux, Android/eCall*) extend the applicability of the module to a wide range of M2M and IoT applications such as industrial router, industrial PDA, rugged tablet PC, video surveillance, and digital signage.

Key Benefits

  • LTE category 4 module optimized for M2M and IoT applications
  • Worldwide LTE, UMTS/HSPA+ and GSM/GPRS/EDGE coverage
  • Multi-constellation GNSS receiver available for applications requiring fast and accurate fixes in any environment
  • Feature refinements: supports DFOTA, eCall* and DTMF
  • MIMO technology meets demands for data rate and link reliability in modem wireless communication systems

Variant for China/India

  1. EC20-CE R2.1:LTE FDD: B1/B3/B5/B8LTE TDD: B34/B38/B39/B40/B41WCDMA: B1/B8TD-SCDMA: B34/B39CDMA: BC0GSM: 900/1800MHz


  1. LTE:LTE FDD: Max 150Mbps (DL)/Max 50Mbps (UL)LTE TDD: Max 130Mbps (DL)/Max 30Mbps (UL)
  2. UMTS:DC-HSDPA: Max 42Mbps (DL)HSUPA: Max 5.76Mbps (UL)WCDMA: Max 384Kbps (DL)/Max 384Kbps (UL)
  3. TD-SCDMA:Max 4.2Mbps (DL)/Max 2.2Mbps (UL)
  4. CDMA2000:EVDO: Max 3.1Mbps (DL)/Max 1.8Mbps (UL)1X Advanced: Max 307.2Kbps (DL/UL)
  5. GSM:EDGE: Max 296Kbps (DL)/Max 236.8Kbps (UL)GPRS: Max 107Kbps (DL)/Max 85.6Kbps (UL)


  1. Speech Codec Modes:HR/FR/EFR/AMR/AMR-WB
  2. Echo Arithmetic:Echo Cancellation/Noise Reduction
  3. VoLTE:Digital Audio and VoLTE (Voice over LTE) (Optional)


  1. USB 2.0 with High Speed up to 480Mbps
  2. Digital Audio through PCM (Optional)
  3. 1.8V/3.0V (U)SIM Interface
  5. UART × 2 (Main Port and Debug Port)
  6. RESET (Active Low)
  7. PWRKEY (Active Low)
  8. Solder Pads for Primary, Rx-diversity and GNSS
  9. Antennas
  10. ADC ×2
  11. SDIO × 2 (For Wi-Fi and SD Card)

Enhanced Features

  1. SDIO for Wi-Fi Function (Optional)
  2. UART for BT4.0* Function (Optional)
  3. eCall*
  4. DTMF
  5. DFOTA: Delta Firmware Upgrade Over-The-Air
  6. (U)SIM Card Detection
  7. Antenna: DL MIMO, support Rx-diversity
  8. GNSS: GPS/GLONASS/BeiDou/Galileo/QZSS

Electrical Characteristics

  1. Output PowerClass 3 (23dBm±2dB) for LTE FDDClass 3 (23dBm±2dB) for LTE TDDClass 2 (24dBm+1/-3dB) for TD-SCDMAClass 3 (24dBm+1/-3dB) for WCDMAClass 3 (24dBm±1dB) for CDMA BC0Class E2 (27dBm±3dB) for EDGE 900MHzClass E2 (26dBm±3dB) for EDGE 1800MHzClass 4 (33dBm±2dB) for GSM 900MHzClass 1 (30dBm±2dB) for GSM 1800MHz
  2. Consumption11uA @Power off1.8mA @LTE Sleep (PF=128)1.5mA @LTE Sleep (PF=256)20mA @Idle
  3. SensitivityFDD B1: -101.6dBm (10M)FDD B3: -101.9dBm (10M)FDD B5: -102dBm (10M)FDD B8: -102.1dBm (10M)TDD B34: -101dBm(10M)TDD B38: -101.3dBm (10M)TDD B39: -101.2dBm (10M)TDD B40: -101.4dBm (10M)TDD B41: -101.4dBm (10M)WCDMA B1: -112dBmWCDMA B8: -112dBmTD-SCDMA B34: -110dBmTD-SCDMA B39: -110dBmCDMA BC0: -108dBmEGSM900: -109dBmDCS1800: -109dBm

Software Features

  1. USB Serial Driver:Windows 7/8/8.1/10Linux 2.6/3.x/4.1~4.15Android 4.x/5.x/6.x/7.x/9.x
  2. RIL Driver:Android 4.x/5.x/6.x/7.x/8.x/9.x
  3. NDIS Driver:Windows 7/8/8.1/10
  4. ECM Driver:Linux 2.6/3.x/4.1~4.15
  5. Gobinet Driver:Linux 2.6/3.x/4.1~4.15
  6. Linux qmi wwan Driver:3.x (3.4 and later)/4.1~4.15

General Features

  1. 3GPP E-UTRA Release 11
  2. Bandwidth: 1.4/3/5/10/15/20MHz
  3. Extended Temperature: -40°C ~ +85°C
  4. Dimensions: 29.0 x 32.0 x 2.4mm
  5. LCC Package
  6. Approx. 5.3g
  7. Supply Voltage: 3.3V~4.3V, 3.8V Typ.
  8. 3GPP TS27.007 and Enhanced AT Commands


  1. Regulatory:SRRC/NAL/CCC (China)
  2. Others:RoHS Compliant
* Under Development
EC20 R2.1 - IoT/M2M-optimized LTE Cat 4 Module

Adobe Reader 9 or newer version is required to view following below PDF files. This is a free program available from the Adobe web site. Follow the download directions on the Adobe web site to get your copy of Adobe Reader.

Quectel EC20 R2.1 LTE Specification V1.2 (676.6 KB)
Quectel EC20 R2.1 Hardware Design V1.2 (1.4 MB)
Quectel EC20 R2.1 Reference Design Rev.A 20180116 (391 KB)
Quectel EC2x & EG25-G Wi-Fi Application Note V1.1 (421.9 KB)
Quectel EC2x & EG25-G BT Application Note V1.0 (382.5 KB)

Adobe Reader 9 or newer version is required to view following below PDF files. This is a free program available from the Adobe web site. Follow the download directions on the Adobe web site to get your copy of Adobe Reader.

Quectel EC20 R2.1 Footprint & Part V1.1 (100.1 KB)
Quectel Windows USB Driver for LTE&G5 modules V2.1 (10.4 MB)

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