User`s manual

Beijing ART Technology Development Co., Ltd. V6.032
2.1.1 GPRS-Config.exe Configuration Program
The methord of A-GPRS1090I enters to the configuration mode: (first do not give the power to module)
1 Connect the COM port with the module.
2 Click the “enter configuration status” button, and then give power to A-GPRS1090I quickly. (Show as the following)
3 Click the “get information” button, then we can read the information of module, or we can wait for seconds because it
can get information automatically.
4 In the left of user interface, there is a “local COM port configuration” tool, we can change the information in it, when it
has been changed, we can save new information by clicking the “save configuration” button.
2.1.2 AT Parameter Configuration Protocol
After DTU into the configuration mode, accordingly we can send command frames with configuration message, by
command frames we can read or write parameters. Command frames all use ASCII characters. This not only gives the
user convenient to use hyper terminal for parameter configuration in absence of configuration tool, but also allows users
to write the DTU configuration program in their own device easily. Command frame structures are shown in
Table2.1.4-1. There are two types of command, write commands and read commands. Write commands are used to
configuration parameters, read commands are used to query the current configuration. The difference between them is
that read commands are not with configuration parameters and characters after the command are different. Write
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