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USR-GPRS232-DTU USR MANUAL www.usr.so
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Jinan USR IOT Technology Limited tec@usr.cn
Contents
USR-GPRS232-DTU USR MANUAL...............................................................................................................................1
1. Instructions before use:.......................................................................................................................................... 3
1.1 Basic introduction...................................................................................................................................... 3
1.2 Product Testing...........................................................................................................................................4
1.3 Document describes..................................................................................................................................11
Contents......................................................................................................................................................................12
3 Product Introduction............................................................................................................................................. 13
3.1 Features........................................................................................................................................................ 13
3.2 Product Features......................................................................................................................................... 14
3.3 Hardware Introduction...............................................................................................................................15
4 Set Methods.............................................................................................................................................................18
4.1 Use AT command set parameters.............................................................................................................. 18
4.2 setup software to set parameters............................................................................................................... 19
4.3 Other setting methods.................................................................................................................................20
5 operating modes Introduction...............................................................................................................................23
5.1 Data passthrough mode.............................................................................................................................. 23
5.2 Serial Command Mode...............................................................................................................................26
5.3 AT command mode......................................................................................................................................26
5.4 HTTPD CLIENT mode.............................................................................................................................. 27
5.5 SMS passthrough mode........................................................................................................................... 30
6 Application Chart...................................................................................................................................................32
6.1 There are a public network server applications.......................................................................................32
6.2 router class public transit server applications......................................................................................... 33
6.3 virtual serial port for remote applications................................................................................................33
7 FAQ..........................................................................................................................................................................35
Module does not send a message to the serial port after power................................................................... 35
Module constantly reboot................................................................................................................................. 35
Unable to establish a network connection module starts..............................................................................36
Modules can not be configured through the serial port parameters........................................................... 37
Contact........................................................................................................................................................................38
Update History...........................................................................................................................................................38