Quick Start Guide
www.geolink.io 
2  OpenTracker 2.4  Quick Start Guide (1.4) 
4. Connect Power source and ignition cable of your vehicle 
OpenTracker supports 12V/24V nominal power supplies (the full range is 8 – 32 Volts DC). 
Please connect first the battery negative (B–) terminal to pin 6 (black wire), then the positive (B+) terminal to pin 1 
(red wire) through a 2A fuse, as in the picture below.  
OpenTracker is preconfigured to go to a low-power mode if the car engine is turned off. The VDET Signal (white wire) 
should  be  connected to  the ignition cable  of  your vehicle.  Any  Car  Stereo  uses  the  same  line  to  determine if  the 
ignition is switched on. 
If you like to disable this feature or ignition output is not available, you can simply connect it to the positive power 
source (Pin 1) or change it manually in software. 
5. Start up the tracker 
Please ensure to insert the correct data. Wrong information can cause higher data costs and be a source of 
connection problems. 
Setup APN 
Send SMS  message  to  the  inserted SIM  card  number to  configure APN  for  your GSM  provider  (WAP APN  are  not 
supported): 
#pass,apn=APN_NAME 
Example: 
#pass,apn=internet 
The module will reply with the following response: 
APN saved 
V
V
D
D
E
E
T
T
(
(
I
I
G
G
N
N
)
)
G
G
N
N
D
D
(
(
B
B
-
-
)
)
V
V
I
I
N
N
(
(
B
B
+
+
)
)
1
1
1
0
0
0
6
6
6
5
5
5
1
1
1
FUSE 
~ 2A 




