Accessories Installation; At Command Communication; Power On Device - SimCom SIM7020C User Manual

contact SIMCom Support Team.
After USB driver installed properly and completely, there will be 2 virtual ports, debug port and
modem port.
USB interface is used for taking genie (debug) log only.
Notes: For the detail, please refer to "SIM7020 Series_Genie_Logging_Tool_User_Guide_V1.0".

3.2 Accessories installation

Now, in order to do the functional test, necessary accessories need to be installed into SIM7020
SUB board.
1) Insert NBIOTSIM card to sim card slot (position C);
2) Install LTE antenna (position G);
3) Insert micro USB cable to USB jack (position D) for power supply and UART (AT and FW
update) communication;
4) Insert micro USB cable to USB jack (position F) for taking genie log. (Option)

3.3 AT command Communication

3.3.1 Power on device

1) Switch "Power Switch" (Position E) to Left, then
power is on.
2) Press "PWRKEY" button (Position B) for one second to power up SIM7020.
Now PWR+ LED light is solid on, while NET+ LED light is blinking with below behaviors.
NET+ (Network LED)
64ms on, 800ms off
64ms on, 3000ms off
64ms on, 300ms off
OFF
SIM7020 Series SUB Kit_User Guide
PWR+
Status Description
Network scanning, not registered
Registered network (PS service)
Data communication
Power off or in PSM mode
Simplify Communication
red LED will light, which means VBAT
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