Table of Contents
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Audio Features
PCM Interface
USB Interface
UART Interface
GNSS Features
AT Commands
Network Indication
Antenna Interface
Physical Characteristics
Temperature Range
Firmware Upgrade
RoHS
EC25-V_User_Manual
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Support master and slave mode, but must be the master in long frame sync
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 debug 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
Main UART:
Used for AT command and data transmission
Baud rate reach up to 921600bps, 115200bps by default
Support RTS and CTS hardware flow control
Debug UART:
Used for Linux console, log output
115200bps baud rate
Support LTE Rx-diversity
Gen8C-Lite of Qualcomm
Protocol: NMEA 0183
Two pins including NET_MODE and NET_STATUS to indicate network
connectivity status
Including main antenna (ANT_MAIN), Rx-diversity antenna (ANT_DIV) and
GNSS antenna (ANT_GNSS)
Size: 32.0±0.15 × 29.0±0.15 × 2.4±0.2mm
Weight: approx. 4.9g
Normal operation: -35°C ~ +75°C
Restricted operation: -40°C ~ -35°C and +75°C ~ +85° C
Storage temperature: -45°C ~ +90°C
USB interface
All hardware components are fully compliant with EU RoHS directive
Confidential / Released
LTE Module Series
EC25-V User Manual
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