TRCSON USER MANUAL
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Make sure to turn off the power before install the SIM card.
3
Make sure to deactivate the PIN code, so that the SIM card can operate without PIN protection.
4
Before install the SIM card to the GPS Tracker, please use a mobile phone to make sure the SIM card
can make & receive phone calls without problem.
5
Before install the SIM card to the GPS Tracker, please use a mobile phone to empty the SMS storage
of the SIM card.
3.3.2 Functional Parts
：
3.3.3 Button Function Description:
Button
Meaning
ower Switch
Press and hold 3-5seconds to turn on / turn off
Short press to hang up incoming calls
Short press to answer the incoming call;
press the key about 3 seconds, the TRCSON will vibrate and send
the location information SMS to the 3 authorized
telephone
SOS
（
button
）
numbers(SMS Mode) Or upload the position to server via
GPRS(GPRS Mode); at the same time, call the first authorized
telephone number. If failed, call the second and third authorized
phone number.
