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Manufacturer: Quectel
Availability: In Stock

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Quectel UC20-G-TE-A + UMTS

Industrial Applications

  • Mobile Computing

  • Mobile POS terminal

  • Security Systems

  • Routers and Data Cards

  • Fleet Management

  • Industrial PDA and Modem

Development Tool


  • RS-232 interfaces  

  • USB interface  

  • Power supply  

  • Antenna interface  

  • Handset interface  

  • Earphone interface  

  • Test interface


  • Digital or analogue audio interface  

  • Network status LED  

  • Power key  

  • Reset key

Key Benefits

● Worldwide UMTS/HSDPA and GSM/GPRS/EDGE coverage

● Minimal SMT form factor ideal for small end products with tight space

● High-quality data and image transmission even in a harsh environment

● Fast time-to-market: reference designs, evaluation tools and timely  technical support minimize design-in time and development efforts

● Robust mounting and interfaces

Main Features

Power Supply

Supply voltage: 3.3V~4.3V

Frequency Bands

GSM: 850/900/1800/1900MHz

UMTS: 800/850/900/1900/2100MHz

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+1.7/-3.7dB) for UMTS 800/850/900/1900/2100

UMTS Features

Support HSPA+, 3GPP R6 HSPA and 3GPP R99/R4 WCDMA

Support both QPSK and 16-QAM modulation

HSDPA: 14.4Mbps (DL)

HSUPA: 5.76Mbps (UL)

WCDMA: 384kbps (DL)/384kbps (UL)

Data Features

Support GPRS multi-slot class 12 (10 by default)
Coding scheme: CS-1, CS-2, CS-3 and CS-4
Maximum of four Rx time slots per frame

Max 85.6kbps (DL)/Max 85.6kbps (UL)
Support EDGE multi-slot class 12 (10 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

Max 236.8kbps (DL)/Max 236.8kbps (UL)
CSD transmission rates: 14.4kbps non-transparent
Support Unstructured Supplementary Services Data (USSD)

Internet Protocol Features

Support the protocols PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) 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 synchronization and short frame

Support master and slave modes, but must be the master in long frame synchronization

UART Interface

Main UART interface:
7-wire on UART interface
Support RTS and CTS hardware flow control
Baud rate up to 921600bps, 115200bps by default
Used for AT command communication, data transmission or

firmware upgrade

Support CMUX function

Debug UART interface:

Two lines on debugging UART interface: DBG_TXD and DBG_RXD

Can be used for GNSS NMEA sentences output

GNSS Features

Gen8 of Qualcomm GNSS engine (16 GPS active channels and
14 GLONASS active channels)

Protocol: NMEA 0183

USB Interface

Compliant with USB 1.1/2.0 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: Support Windows 7/8/8.1/10, Linux 2.6/3.x/4.1, Android 4.x/5.x/6.0

AT Commands

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

Network Indication

Two pins including NET_MODE and NET_STATUS to indicate network connectivity status

Antenna Interface

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