12 MICRA SATEL
the available computer COM ports. After activation of the selected COM port, the program
will establish communication with the module.
4.2 REMOTE PROGRAMMING USING GPRS TECHNOLOGY
During the remote programming of the module, all functions that require the use
of GSM telephone will be disabled.
Remote programming is possible when the "Remote programming" option is enabled in the
module and the following items have been programmed:
– PIN code (if the card requires entering PIN code);
– Access Point Name (APN) for Internet GPRS connection;
– user name for Internet GPRS connection;
– password for Internet GPRS connection;
– DNS server IP address which is to be used by the module (the DNS server address
requires no programming, if the computer address is entered in the form of IP address,
not a name);
– initialization code for computer connection.
Note: APN, user name, password and DNS server address can be obtained from the GSM
network operator.
The computer on which the GPRS-SOFT program will be running must have its address
visible in the Internet (so-called public address). Otherwise, the network server port must be
redirected to that computer, so as to make connection with the computer possible.
In order to establish communication between the module and the computer, do the following:
1. Start the GPRS-SOFT program.
2. Click on the "Configuration" button (see: Fig.8 and explanations for the figure) and, in the
window that will open, enter the number of TCP port selected for communication with the
module. The number will have to be included in the body of SMS message which will be
sent to the module GSM telephone number to initialize communication.
3. Click on the button (see Fig. 8). In the menu that will open, select "TCP/IP" to activate
the server.
4. Send SMS message to the module GSM telephone number. The SMS message should
have the following form: xxxx=aaaa:p= ("xxxx" is the module defined code to initialize
communication with GPRS-SOFT program – "Initiating SMS"; "aaaa" is the address of the
computer with which the module is to establish communication, shown in the IP address
form or as a name; "p" stands for the number of network port through which
communication with the GPRS-SOFT program is to be effected). The module will connect
to the computer whose address was given in the SMS message.
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