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Multi-mode LTE Module Multi-constellation GNSS LCC Package

Multi-mode LTE Module Multi-constellation GNSS LCC Package

Manufacturer: Quectel
Part No: EC20CEFDLG-128-SNNS
Availability: In Stock

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Multi-mode LTE Module Multi-constellation GNSS LCC Package

Key Features

Power Supply

Supply voltage: 3.3V~4.3V, Typical supply voltage: 3.8V

Frequency Bands

FDD-LTE (with Rx-diversity): B1/B3

TDD-LTE (with Rx-diversity): B38/B39/B40/B41

WCDMA (with Rx-diversity): B1

TD-SCDMA (with Rx-diversity): B34/B39

CDMA (with Rx-diversity): BC0

GSM: 900/1800


Transmitting Power

Class 4 (33dBm±2dB) for GSM850 and EGSM900
Class 1 (30dBm±2dB) for DCS1800 and PCS1900
Class E2 (27dBm±3dB) for GSM850 and EGSM900 8-PSK
Class E2 (26dBm±3dB) for DCS1800 and PCS1900 8-PSK
Class 3 (24dBm+6/-1dB) for CDMA BC0
Class 3 (24dBm+1/-3dB) for WCDMA bands
Class 2 (24dBm+1/-3dB) for TD-SCDMA bands
Class 3 (23dBm±2dB) for LTE FDD bands
Class 3 (23dBm±2dB) for LTE TDD bands

LTE Features

Support 3GPP R9 CAT3 FDD and TDD
Support 1.4 to 20MHz RF bandwidth
Support 2 ×2 MIMO in DL direction
FDD: Max 100Mbps (DL), 50Mbps (UL)
TDD: Max 61Mbps (DL), 18Mbps (UL

WCDMA Features

Support 3GPP R8 DC-HSPA+
Support 16-QAM, 64-QAM and QPSK modulation
3GPP R6 HSUPA: Max 5.76Mbps (UL)
3GPP R8 DC-HSPA+: Max 42Mbps (DL)

TD-SCDMA Features

Support 3GPP R8 1.28 TDD
Max 4.2Mbps (DL), 2.2Mbps (UL)

CDMA Features

Support 1x Advanced
Max 14.7Mbps (UL), 5.4Mbps (DL)

GSM Features

R99: CSD: 9.6kbps, 14.4kbps

Support GPRS multi-slot class 12 (12 by default)
Coding scheme: CS-1, CS-2, CS-3 and CS-4
Maximum of four Rx time slots per frame
Support EDGE multi-slot class 12 (12 by default)
Support GMSK and 8-PSK for different MCS (Modulation and Coding scheme)
Downlink coding schemes: CS 1-4 and MCS 1-9
Uplink coding schemes: CS 1-4 and MCS 1-9

Internet Protocol Features

Support the protocols PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) which are usually used for
PPP connections


Text and PDU mode
Point to point MO and MT
SMS cell broadcast
SMS storage: ME by default

USIM Interface

Support USIM/SIM card: 1.8V, 3.0V

Audio Features

Support one digital audio interface: PCM interface
Support echo cancellation and noise suppression

PCM Interface

Used for audio function with external codec
Support 8-bit A-law, μ-law and 16-bit linear data formats
Support long frame sync and short frame sync
Support master and slave mode, but must be the master in long frame sync

USB Interface

Compliant with USB 2.0 specification (slave only); the data transfer rate can reach up to 480Mbps
Used for AT command communication, data transmission, GNSS NMEA output, software debugging and firmware upgrade
USB Driver: Windows XP, Windows Vista, Windows 7, Windows 8/8.1, Window CE 5.0/6.0/7.0, Linux 2.6 or later, Android 2.3/4.0/4.2/4.4/5.0

UART Interface

Main UART:
Used for AT command communication and data transmission
Baud rate reach up to 921600bps; 115200bps by default
Support RTS and CTS hardware flow control
Support multiplexing function
Debug UART:
Used for Linux console, log and GNSS NMEA output
115200bps baud rate


Support LTE/WCDMA/TD-SCDMA/CDMA Rx-diversity

GNSS Features

gpsOne Gen8A of Qualcomm (GPS and GLONASS)
Protocol: NMEA 0183

AT Commands

Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT

Network Indication

Two pins including NET_MODE and NET_STATUS to indicate network connectivity status

Antenna Interface

Including main antenna (ANT_MAIN), Rx-diversity antenna (ANT_DIV) and GNSS antenna (ANT_GNSS)

Physical Characteristics

Size: 32.0±0.15 ×29.0±0.15 ×2.4±0.2mm
Weight: approx. 4.9g

Temperature Range

Operation temperature range: -35℃ ~ +75℃
Extended temperature range: -40℃ ~ +85℃

Firmware Upgrade

USB interface and DFOTA


All hardware components are fully compliant with EU RoHS directive

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