
4
5. Description of the LED Indicators
System State
(RED LED)GPS State
(ORANGE LED)
GSM/GPRS State
(GREEN LED)
Flash --- GPS is on, and
position is fixed GSM is sending
or receiving data
Constant
Glow normal GPS is on, but
position not yet fixed GSM is on, but not yet
connected to the network
Constant
Dark in trouble or
no power GPS is off, or
GPS has troubles
GSM is in the standby mode;
or SIM Card was installed
improperly; or in trouble
6. Inspection Items after Installation
After connected to the power source, the RED LED indicator should be “constant glow”.
The GREEN LED for GSM/GPRS state should “flash” when sending or receiving data.
The status of the ORANGE LED for GPS state:
- go to an open air place, check the status of the orange indicator
- make sure GPS has got position fixed, and the Orange LED “flashes once per second”
- make a phone call to the AVL unit, and ask it to report its current position
7. Operating Instructions
(1) Geo-fence (Park) function
When park your car or leave your valuable asset at a certain place, you can send a SMS
command code “888#Password” to activate “Park” (Geo-fence) function to guard it. The unit
will send a SMS message to the preset phone number, when someone moves the car.
(2) Sound monitoring function
If you want to know what is happening inside the car, you can send a SMS command code
“100#Password”to the unit to monitor the situation in the car, LIVE & REAL-TIME.
(3) Position report function
No matter where you are, when you want to know the position of your vehicle, send a SMS
command code “111#Password” to the AVL; it will report its location back to you by SMS, or
GPRS.
(4) Remote immobilization function
You can send a SMS command code “060#Password#1” to the AVL to open the relay circuit,
in order to immobilize the car engine. If the relay is connected to the motor starter circuit, the
car engine will be unable to ignite/restart, when it is OFF. Stop the car on the spot is a
dangerous way to go. We do not suggest you to connect the relay to the oil pump.
(5) Car alarm system
AVL-901(D) can work with car alarm system to send an alert SMS message to your mobile, if
car alarm is activated.