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Quectel EC25-E LTE Mini PCIe Module

Quectel EC25-E LTE Mini PCIe Module

Manufacturer: Quectel
Part No: EC25-E-Mini-PCIE
Availability: In Stock

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IoT/M2M-optimized LTE Cat 4 Module Variant for EMEA/Korea/Thailand/India

EC25-E Mini PCIe Module Features

Function Interface

PCI Express Mini Card 1.2 Standard Interface

Power Supply

Supply voltage: 3.0~3.6V, Typical supply voltage: 3.3V

Frequency Bands

Support GSM: 900/1800MHz
Support WCDMA: B1/B5/B8
Support LTE-FDD: B1/B3/B5/B7/B8/B20
Support LTE-TDD: B38/B40/B41
Support LTE/WCDMA receive diversity
Support GNSS
Support digital audio

Transmitting Power

Class 4 (33dBm±2dB) for GSM850
Class 4 (33dBm±2dB) for GSM900
Class 1 (30dBm±2dB) for DCS1800
Class 1 (30dBm±2dB) for PCS1900
Class E2 (27dBm±3dB) for GSM850 8-PSK
Class E2 (27dBm±3dB) for GSM900 8-PSK
Class E2 (26dBm±3dB) for DCS1800 8-PSK
Class E2 (26dBm±3dB) for PCS1900 8-PSK
Class 3 (24dBm+1/-3dB) for WCDMA bands
Class 3 (23dBm±2dB) for LTE-FDD bands
Class 3 (23dBm±2dB) for LTE-TDD bands

LTE Features

Support up to non-CA Cat 4
Support 1.4 to 20MHz RF bandwidth
Support MIMO in DL direction
FDD: Max 50Mbps (UL), 150Mbps (DL)
TDD: Max 35Mbps (UL), 130Mbps (DL)

WCDMA Features

Support 3GPP R8 DC-HSPA+
Support 16-QAM, 64-QAM and QPSK modulation
3GPP R6 Cat 6 HSUPA: Max 5.76Mbps (UL)
3GPP R8 Cat 24 DC-HSPA+: Max 42Mbps (DL)

GSM Features

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
Downlink coding schemes: CS 1-4 and MCS 1-9
Uplink coding schemes: CS 1-4 and MCS 1-9

Internet Protocol Features

MMS*/FTPS*/SSL*/SMTPS* protocols
Support PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) protocols 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

Support 8-bit A-law*, μ-law* and 16-bit linear data formats
Support long frame synchronization and short frame synchronization
Support master and slave mode, but must be the master in long frame synchronization

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, firmware upgrade and voice over USB*
Support USB serial drivers for: Windows XP, Windows Vista, Windows,7/8/8.1/10, Windows CE 5.0/6.0/7.0*, Linux 2.6/3.x/4.1,
Android 4.x/5.x/6.x/7.x

UART Interface

Baud rate can reach up to 230400bps, 115200bps by default
Used for AT command communication


Support LTE/WCDMA Rx-diversity

GNSS Features

Gen8C Lite of Qualcomm
Protocol: NMEA 0183

AT Commands

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

Antenna Interface

Include main antenna, diversity antenna and GNSS antenna

Physical Characteristics

Size: (51.0±0.1) × (30.0±0.1) × (4.9±0.2) mm
Weight: approx. 9.8g

Temperature Range

Operation temperature range: -35°C ~ +75°C
Extended temperature range: -40°C ~ +80°C

Firmware Upgrade

USB interface and DFOTA


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