E-Lins D120 Series DTU Manual de usuario descargar pdf (Pagina 9)

D120 DTU Modem Quick Start

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Do not care about the ERROR code, just care if you see “+++++++++++” on the screen. If yes, the

connection is successful.

Test AT command

Notes:

1. All <CF> means “enter”

2. The character and words in Green and Red is very important. Please study carefully. Thanks!

AT<CF> //Test “at“ command

I/OK //Response ok parameter if successfully connected, you can make sure the module

have no malfunction

AT+i //do nothing, or switch mode from AT command to AT+I Command

AT+iMCM //switch mode from AT+I command to AT command

Notes:

if the DTU is in “at” command mode, the ”at+i” command will not work, then you need switch “at” command

mode;

if the DTU is in “at+i” command mode, the ”at” command will not work, then you need switch “at+i” command

mode;

For example, if you are in “at” command mode, you can only input “at+csq” command, but cannot input

“AT+iPARS” command. At this situation, you need type “at+i <CF>” to switch to “at+i” command mode. Then you

can input “AT+iPARS” command successfully.

AT+CSQ<CF> // to check the Signal quality

+CSQ: **, ## // ** Should be the number between 10 and 31, the signal quality becomes better as

the number grows. ## should be is 99, Or you should checking the

equipment of antenna or SIM card.

E-Lins Technology Co.,Limited

Add:Bld22, Longxi Garden, Nonglin Road, Futian, Shenzhen, 518000, China

Tel: +86-755-83700465 E-mail: [email protected] www.szelins.com

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E-Lins D120 Series DTU Manual de usuario Pagina 9