GV75W User Manual
TRACGV75WUM001
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1.
Introduction
The GV75W is a compact waterproof GPS tracker designed for a wide variety of vehicle tracking
applications. It has multiple I/O interfaces that can be used for monitoring or controlling external
devices. Its built‐in GPS receiver has superior sensitivity and fast time to first fix. Its triple band
WCDMA subsystem supports UMTS/HSDPA 850 (Band V)/1900 (Band II)/2100 (Band I) MHz and quad
band GSM/GPRS 850/900/1800/1900 MHz, allowing the GV75W's location to be monitored in real
time or periodically tracked by a backend server and mobile devices. Its built‐in 3‐axis accelerometer
allows motion detection and extends battery life through sophisticated power management
algorithms. System integration is straightforward as complete documentation is provided for the full
featured @Track protocol. The @Track protocol supports a wide variety of reports including
emergency, geo‐fence boundary crossings, driving behavior, low battery and scheduled GPS fix.
1.1.
Reference
SN
Document Name
Remark
[1]
GV75W @Track Air Interface Protocol
The air protocol interface between
GV75W and backend server.
[2]
@Track Air Interface for Garmin‐FMI
Protocol
Table 1 : Reference
1.2.
Terms and Abbreviations
Abbreviation
Description
DIN
Digital Input
DOUT
Digital Output
GND
Ground
LATCH_OUT
Latched Digital Outputs
IGN
Ignition
USB_VBUS
USB power connector
USB_DM
USB digital negative
USB_DP
USB digital positive
RXD
Receive Data
TXD
Transmit Data
Table 2: Terms and Abbreviations
