Data Transmitting Test - Ebyte NB-IoT E840-DTU User Manual

NB-IoT DTU
USB to RS485 adaptor or USB to RS232 adaptor
Please get UART, SIM card, sucker antenna and etc. ready according to the recommended circuit before test.

2.2 Data Transmitting Test

Software is needed for data transmitting test:
Xcom is applied here for the test and you can download it at our website. Users can also apply other test tools that are available.
2.2.1 Test Steps:
1. Insert the SIM card into E840-DTU(NB-02) and connect it to the computer according to the above mentioned methods. Open
the Xcom, set the parameters of corresponding UART NO. and baud rate(only 9600 is available)and turn on the UART.
2. When powered on with the power adaptor provided by us, POWER indicator on and NET indicator blinking shows that the
transceiver is ready.
3. Wait for 3s-5s to use the serial AT command to access the module.
4. Normal network process
Neul
OK
AT+CFUN=1
OK
AT+CIMI
460012345678966
OK
AT+NBAND?
+NBAND:5
OK
AT+NCDP=139.199.157.166,2017//configure CDP server
OK
AT+NCDP?
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// Waiting 3s after module is powered on
// configure cfun， "1" means open all the function of module
//Inquire IMSI——Delay 3s to inquire to ensure the module can recognize the card.
//read the current CDP server
NB-IoT sucker antenna
// Read the current frequency, "5" means 850MHz;
E840-DTU（NB-02）User Manual
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