
UniGuard Technology Limited
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www.uniguardgps.com
4
1.2
Installation
Figure
Please test after installation. If you don’t need some functions.
Please make sure ACC, DC+, GND installed correctly. Otherwise, the
device cannot work. Please check the device status through signal
light after power on:
LED flashes for one second which indicates GSM registers
successfully.
LED flashes three seconds once which indicates GPS is
obtaining orientation
LED is on which indicates work successfully that GSM has
registered and GPS has obtained the orientation.
If LED is on 0.1 second then off 0.1 second for more than 3
minutes, please make sure SIM card inserts well. Without SIM
card, the device cannot work.
2 SMS Operation Instruction
SMS Format: A******,cmd,param1,param2…
1. ******is the password, Initial Password is 000000
2. cmd is the command ID.
3. Param is the command parameter. Different cmd use different
parameters. All the parameters must use half-angle symbol. Wrong
SMS format or wrong password, it will not respond.