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  • LTE EC21
  • Quectel EC21 is an LTE category-1 module optimized specially for M2M and IoT applications. It delivers power-enhanced perfor-mance and M2M-optimized speeds of 10Mbit/s downlink and 5M-bit/s uplink, and features low-power, low-cost LTE connectivity. These make it ideally suitable for numerous IoT applications that are not rely on high speed connectivity but still require the longevi-ty and reliability of LTE networks.

    Quectel_EC21_LTE_Specification_V1.0.pdf

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Quectel EC21 is an LTE category-1 module optimized specially for M2M and IoT applications. It delivers power-enhanced perfor-mance and M2M-optimized speeds of 10Mbit/s downlink and 5M-bit/s uplink, and features low-power, low-cost LTE connectivity. These make it ideally suitable for numerous IoT applications that are not rely on high speed connectivity but still require the longevi-ty and reliability of LTE networks.

 

EC21 is fallback compatible with Quectel UMTS/HSPA+ UC20 module and multi-mode LTE EC20 module in the compact and unified form factor. EC21 contains 5 variants: EC21-V, EC21-A, EC21-E, EC21–AUT, and EC21-AUTL. This makes it backward-compatible with existing EDGE and GSM/GPRS networks, which ensures that it can easily migrate from LTE to 2G or 3G networks.

 

A rich set of Internet protocols, industry-standard interfaces and abundant functionalities (USB drivers for Windows XP, Windows Vista, Windows 7, Windows 8/8.1, Linux, Android/eCall) extend the applicability of the module to a wide range of M2M and IoT appli-cations such as metering, wearable devices, digital signs, industrial routers, tracking and tracing, fleet management, smart home gate-ways and even drones.

 

Key benefits

● Low-cost, low-power LTE connectivity optimized for broad-band IoT applications

● Worldwide LTE, UMTS/HSPA+ and GSM/GPRS/EDGE cover-age

● Compact SMT form factor ideal for small end products with tight space and extended operating temperature range

● GNSS receiver available for applications requiring fast and accurate fixes in any environment

● Embedded power management unit (PMU) featuring ultra-low deep-sleep current consumption

 

General Features
  Frequency Bands EC21-V
FDD LTE: FDD LTE: B4/B13
EC21-A
FDD LTE: B2/B4/B12
WCDMA: B2/B4/B5
EC21-AUT
FDD LTE: B1/B3/B5/B7/B28
WCDMA: B1/B5
EC21-AUTL
FDD LTE: B3/B7/B28
EC21-E
FDD LTE: B1/B3/B5/B7/B8/B20
WCDMA: B1/B5/B8
GSM: 900/1800
EC21-J
B1/B3/B8/B11/B18/B19/B26@FDD LTE
EC21-KL
B3/B5/B7/B8@FDD LTE
  LTE Version 3GPP E-UTRA Release 11
  Bandwidth 1.4/3/5/10/15/20MHz

 

Antenna

Supports Rx-diversity
  Supply Voltage Range 3.3V~ 4.3V , 3.8V Typ.

 

Operation Temperature

-40 °C ~ +85 °C
  Dimensions 32.0 x 29.0 x 2.4mm
  Package LCC
  Weight Approx. 4.6g
  Control via AT commands 3GPP TS27.007 and enhanced AT Commands
     
Specifications
  DATA LTE LTE-FDD Max 10Mbps (DL) Max 5Mbps (UL)
    DC-HSPA+ Max 42Mbps (DL) Max5.76Mbps(UL)
    UMTS Max 384Kbps(DL) Max 384Kbps(UL)
    EDGE Max.236.8 Kbps (DL)/ Max.236.8 Kbps (UL)
    GPRS Max.85.6 Kbps (DL)/ Max.85.6 Kbps (UL)
  Voice Speech Codec Modes HR, FR, EFR, AMR, AMR-WB
  Echo Arithmetic Echo Cancellation
Noise Reduction
  eCall* Accident, Emergency Services
  VoLTE Digital Audio and VoLTE (Voice over LTE) (Optional)
  Protocols TCP/UDP/PPP/FTP*/HTTP*/SMTP*/MMS*/NTP/
PING/DTMF*/FILE*/CMUX*/QMI
     
Special Features
  Drivers USB Serial Windows XP, Windows Vista, Windows 7,
Windows 8/8.1, Windows CE5.0/6.0/7.0, Linux
2.6 or later, Android 2.3 /4.0/4.2/4.4 /5.0
  RIL* Android 4.0/4.2/4.4/5.0
  NIDS Windows XP, Windows Vista, Windows 7,
Windows 8/8.1
  ECM* Linux 2.6 or later
  Gobinet Linux 2.6 or later
  Linux qmi wwan Linux 3.4 or later
  DFOTA Firmware updated via the air *
  BT4.0/WiFi * Optional
  GNSS GPS/GLONASS/BeiDou/Galileo and QZSS
     
Electrical Characteristics
  Output Power Class 3 (23dBm±2dB) for LTE FDD
Class 3 (23dBm±2dB) for LTE TDD
Class 3 (24dBm +1/-3dB) for UMTS
Class E2 (27dBm ±3dB) for EDGE 850/900MHz
Class E2 (26dBm +3/-4dB) for EDGE
1800/1900MHz
Class 4 (33dBm ±2dB) for GSM 850/900MHz
Class 1 (30dBm ±2dB) for GSM 1800/1900MHz
  Consumption 20uA@Power off
3mA@Sleep,Typ
  Sensitivity TBD
     
Interfaces
  USB 2.0 Device High Speed, 480Mbps
  PCM ×1,Digital Audio through PCM Interface (Optional)
  USIM 1.8V/3V
  NETLIGHT ×2, NET_STATUS and NET_MODE
  UART ×1UART
  RESET  
  RTC Backup  
  RESET  
  PWRKEY  
  Antenna Pads for Primary, Rx-diversity and GNSS
  ADC ×2
     
Certificates
  CE*/FCC*/GCF*/PTCRB*/AT&T*/Verizon*/ACMA RCM*
     

* Under development

 
The module is sensitivity to moisture absorption. Before reflow, Module should be baked for 192 hours at temperature 40℃+5℃/-0℃ and <5% RH in low-temperature containers, or 24 hours at temperature 125℃±5℃ in high-temperature containers. Care should be taken that plastic tray is not heat resistant. Module should be taken out before preheating, otherwise, the tray maybe damaged by high-temperature heating.