User's Manual

TRACGV300VCUM001 - 20 -
GV300VC User Manual
External power in and internal battery is charging. Fast flashing
External power in and internal battery is fully charged. ON
Tabl e 10. Definition of Device Status and LED
Note:
1. CDMA2000 LED cannot be configured.
2. GPS LED and PWR LED can be configured to turn off after a period of time using the configuration
tool
3. Fast flashing：for CELL LED is about 60 ms ON/780 ms OFF; for GPS LED and PWR LED is
about 100 ms ON/100 ms OFF.
4. Slow flashing: for CELL LED is about 60 ms ON/1940 ms OFF; for GPS LED and PWR LED is
about 600 ms ON/600 ms OFF.
3.12 Serial Port/UART Interface
There are two lines dedicated to the Serial Port/UART interface (TXD and RXD). TXD/RXD is
standard RS232 signal.
 Figure 16. Typical Connection with RS232 Port