6
1
RED
Power supply 8-45V DC
2
BLACK
Ground
3
GREEN
ACC detection, when key-in and turn to ACC position,
ACC goes level high.
4
YELLOW
Relay control driving signal
Please use 12V RELAY in 12V system, use 24V RELAY in 24V system like
bus and truck.
3.4 Status Indication
No
LED Color
Status
Descriptions
1
RED
Light
GSM work normal
Blink
No GSM signal
2
BLUE
Light
GPRS connected to the
server.
Blink
GPRS connection failed.
3
YELLOW-GRE
EN
Light
GPS fixed.
Blink
GPS searching.
Note
The LEDs will light up about 5 minutes, then turn off to save power, if
you want to check the status, just call the phone number of the device.