Robustel GoRugged M1000 User Guide
RT_UG_M1000 _v.2.0.0
20.12.2013
7 / 83
Confidential
4.2
GSM CSD Connection (Only Available under Normal Mode) ....................................................................... 51
4.2.1
Overview ........................................................................................................................................... 51
4.2.2
Establishing a CSD Connection ......................................................................................................... 51
4.2.3
Answering a CSD Connection ........................................................................................................... 53
4.3
Using Short Message Service by Using AT Commands (Only Available under Normal Mode) .................... 54
4.3.1
Sending a Short Message .................................................................................................................. 55
4.3.2
Reading a Short Message ................................................................................................................. 55
4.3.3
Deleting a Short Message ................................................................................................................. 56
4.4
Using SMS Direct (Only Available under Config Mode) ............................................................................... 56
4.5
GPRS Connection (Only Available under Normal Mode) ............................................................................. 57
4.5.1
Overview ........................................................................................................................................... 57
Chapter 5.
Appendix .................................................................................................................................................. 69
5.1
Factory Settings ............................................................................................................................................ 69
5.2
Restore to Factory Default ........................................................................................................................... 69
5.3
SMS Commands for Remote Control ........................................................................................................... 69
5.3.1
SMS Commands Structure ................................................................................................................ 69
5.3.2
SMS Control Steps ............................................................................................................................ 70
5.3.3
SMS Commands List ......................................................................................................................... 70
5.3.4
SMS Control Examples ...................................................................................................................... 76
5.4
Modbus Address Mapping ........................................................................................................................... 77
5.5
GSM Alphabet .............................................................................................................................................. 77
5.6
Troubleshooting ........................................................................................................................................... 81
5.5.1
The modem’s LED does not light: ..................................................................................................... 81
5.5.2
M1000 keep rebooting all the time: ................................................................................................. 81
5.5.3
No connection with modem through serial link ............................................................................... 81
5.5.4
Receiving “No Carrier” Message ...................................................................................................... 82
5.7
Terms and Abbreviations ............................................................................................................................. 82
