
D120 DTU Modem Quick Start
E-Lins Technology Co.,Limited
Add:Bld22, Longxi Garden, Nonglin Road, Futian, Shenzhen, 518000, China
TCP Server
AT+iHSRV=”” //clear the parameter
AT+iLPRT=port //setting the listen port
AT+iTUP=2 //always online
AT+iPARS //parameters save
AT+i!SNMD //switch to SerialNET mode (please must input this command after parameter
save, then the DTU modem will be into communication mode for work)
……
……
…… //wait for the connection establish
……
……
+++ //exit SerialNet mode
AT+iTUP=0 //disable always online function
AT+iPARS //parameter save
Note: TCP Server must use always online function, please put jumper to the pin of watch dog, refer chapter 7 for detail.
UDP Server
No especial setting
Note: UDP connection both sides is equal, so both sides is used the same settings as before.
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