GV55VC User Manual
TRACGV55VCUM001 6
1.
Introduction
The GV55VC is a powerful GPS locator designed for vehicle or asset tracking. It has superior
receiver sensitivity, fast TTFF (Time to First Fix) and supports Dual-Band CDMA2000-1x
frequencies 800/1900, its location can be monitored in real time or be periodically tracked
by a backend server or other specified terminals. The GV55VC has multiple input/output
interfaces that can be used for monitoring or controlling external devices. Based on the
integrated @Track protocol, the GV55VC can communicate with a backend server through
the CDMA2000-1x network to transfer reports of Emergency, geo-fence boundary crossings,
low backup battery or scheduled GPS position as well as many other useful functions. Users
can also use GV55VC to monitor the status of a vehicle and control the vehicle by its external
relay output. System Integrators can easily setup their tracking systems based on the
full-featured @Track protocol.
1.1.
Reference
Table 1: GV55VC Protocol Reference
SN Document name
Remark
[1] GV55VC @Track Air Interface Protocol
The air protocol interface between
GV55VC and backend server.
1.2.
Terms and Abbreviations
Table 2: Terms and Abbreviations
Abbreviation Description
AGND
Analog Ground
AIN
Analog Input
DIN
Digital Input
DOUT
Digital Output
GND
Ground
MIC
Microphone
RXD
Receive Data
TXD
Transmit Data
SPKN
Speaker Negative
SPKP
Speaker Positive
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