- 7 -
IN
Yellow
Digital Inputs,input is positive triggering.
OUT1
Green
Outputs. Low voltage (0V) when effective and open drain when
ineffective.
Output open drain sink voltage (ineffective): 45V max.
Output low voltage sink current (effective): 500mA max.
SW1
Blue
Digital Inputs. Positive triggering alarm
SW2
Orange
Working with vehicle original alarm,alarm when The original car alarm
ringing for more than 8 seconds.
3
.4
.4
.4
.4 Connecting
Connecting
Connecting
Connecting and
and
and
and Installation
Installation
Installation
Installation
Read this manual before using your VT300
and check if all parts are included in the packaging box.
3.4.1
3.4.1
3.4.1
3.4.1 Make
Make
Make
Make sure
sure
sure
sure you
you
you
you insert
insert
insert
insert a
a
a
a working
working
working
working SIM
SIM
SIM
SIM card.
card.
card.
card.
- The SIM card should have enough charge (test the SIM in a phone to make sure it can send and receive
SMS)
- Check that the SIM PIN code is turned off
- Before inserting SIM card, cut off the power for VT300
- Unscrew and remove the front cover of VT300
- Insert the SIM card by sliding it into the card slot with the chip module facing to the connectors on PCB.
- Screw the front cover after you finished.
3.4.2
3.4.2
3.4.2
3.4.2 Antenna
Antenna
Antenna
Antenna Connection
Connection
Connection
Connection
Connect the GSM Antenna to VT300
GSM antenna perpendicular to paste, leaving some space above it, so that in the best condition, let other
radio equipment and vehicle to maintain a certain distance to avoid mutual interference. You can choose any
location only if it meets the above conditions, ensure that the signal in the normal reception (send) the first
premise, hidden as far as possible.
Connect the GPS Antenna to VT300
Sucker down the GPS antenna (with suction side of the plane), placed in horizontal position, if necessary,
double-sided adhesive can be fixed. No any metal shielding between the GPS antenna and the sky, ensure the
antenna side up, no metal objects to the block in the top of the range of 120-degree angle, otherwise it will
affect the satellite signal reception.
The proposed installation: a) top of the vehicle; b) the inside of the windscreen at the shelter; c) under plastic or
fiberglass bumper.
3.4.3
3.4.3
3.4.3
3.4.3 Find
Find
Find
Find a
a
a
a suitable
suitable
suitable
suitable place
place
place
place inside
inside
inside
inside the
the
the
the car
car
car
car for
for
for
for installing
installing
installing
installing VT300
Wiring connections must be firm and reliable and the joints should be wrapped with insulating tape tightly. The
unused electrical wire should be properly insulated.
Check if all wirings have been connected correctly and then connect the AVL unit to the motor power
（
battery
）
.
Check that the Red LED is flashing 1 second on and 2 seconds off.
Check that the Green LED is flashing,has GPS signal if it is on, no GPS signal if off.
Make a missed phone call the VT300
using a mobile phone to check if the calling can go through and send
command
111111CHK
111111CHK
111111CHK
111111CHK
to the SIM number of AVL, and the AVL replies with an SMS indicating longitude,
latitude, speed and date.
VT300
