Important Statement; About Us - Ebyte NB-IoT E840-DTU User Manual

NB-IoT DTU
+NCDP:139.199.157.166,2017
OK
AT+CGATT=1
OK
AT+CSQ //read the current signal intensity +CSQ:21,99 ；
OK
AT+CGATT?
means connection already.
+CGATT:1
OK
AT+CEREG?
+CEREG:0,1
OK
Note: Before the module joining the network, the IMSI of sim must be registered in the core network, or it cannot register the
network.

3. Important Statement

1. CDEBYTE reserves the right of final interpretation and modification of all the contents of this manual.
2. As the hardware and software products continuously improving, this manual may subject to change without notice, please refer to
the latest version.
3. Everyone is responsible for protecting the environment: to reduce the use of paper, we only provide electronic documents of the
English manual, if necessary, please go to our official website to download.

4. About Us

CDEBYTE after-sales technical
For file download and more product information, please
Thank you for using the CDEBYTE products! Any questions or suggestions, please
——————————————————————————————————————————————————————————
Tel：028-61399028
Fax：028-64146160
Website：www.cdebyte.com/en/
Address：Innovation Center D347, 4# XI-XIN Road,Chengdu, Sichuan, China
Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co.,Ltd.
//register network
// Inquire the network status-it takes times for module to join network. Query within 30s until it is 1, "1"
//Inquire network registration status, "1" means success;
support：support@cdebyte.com
visit：www.cdebyte.com
contact：support@cdebyte.com
E840-DTU（NB-02）User Manual
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