4、Interface definition
2.3 Device Installation
Note:
When device is connected with external power,
please turn on the battery switch. The battery will then
connect with the device circuits and its built-in battery
will be charged. If battery is OFF, battery can't be
charged. The device will be power off if no external
power supply.
Power on/ Power off
Power on:Once you insert a valid SIM card and
connect all the wires, turn on the device. Power LED
will flash first. During signal searching process stable
Power off: Just turn off the power switch.
Operation of device
