Sim Card Installations; Turn On The Tracker Device; Gsm/Gps Led Indicator; Initialization - GPS Tracker GPS303CD User Manual

6.2SIM CARD Installations

6.2.1 Use the screwdriver accompanied with the device to open sealed buckle and insert the
SIM card.If need data logging function, please insert microSD and put sealed buckle back
6.2.2Please make sure the SIM card is for GSM network and able to execute the function of
incoming calls display, no calls can be diverted and the PIN code is locked. The SMS format
must be TXT format, and can't recognize the PDU format

6.3 Turn on the Tracker Device.

Connect the positive & negative wire, red & black ones, with 12V or 24V car power
system, wait for 1 minute after connecting power to wait tracker works normal, and then turn
on the backup battery switch.

6.4 GSM/GPS LED Indicator

Red LED: when charging, LED ON, After full charged, LED OFF,
In Low power, LED flash fast.
Green LED: In GSM Mode, LED quick flash for each second, In GPRS Mode, LED flash
one time in three seconds, when No GSM reception, LED ON.
Blue LED: In good GPS reception, LED quick flash for each second,
No GPS reception, LED OFF.

6.5 Initialization

Send "begin+password" in SMS to the unit, it will reply "begin ok" and initialize all the settings. (Default
password: 123456)
For example, send SMS "begin123456" to the tracker via a cell phone, if succeeded, if will reply "begin
ok".
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Wiring diagram