10
10
6.2 Wireless solution using WirelessCom/G10
A typical setup may look as shown in figure 6.2, WirelessCom may be connected
(physically) to any device, machine (which has a RS232 port) located in a remote place and the server
computer would be present at the company/home. Through various parameters settings (server ip,
server port, apn……) present in WirelessCom, it would be configured to connect to the server.
On the server would be running two software’s,
a) TCP-to-Serial software/Telnet/TCP port software:
TCP-to-serial software is only required if
you have dedicated (proprietary) software which you use to control/configure/read/write your device.
This software is used to create a virtual serial port on your computer. This port will appear as a
hardware port for your computer. The main function of this software is to direct all the data coming on
the TCP port to the virtually created serial port.
If you are using simple terminal software for interacting with your device, in that case you
can use any Telnet software* (Microsoft Telnet) or a TCP port communication software like Netcat
and set a TCP/IP port in listening mode.
*Refer to APPENDIX II for more details
b) Proprietary software:
This software (can be even a free terminal software) is used to make
a connection from PC to the device/ machine using normal serial port (as explained in the scenario of
wired solution). Launch this software and connect it to the virtually created serial port. The setup is
done and your proprietary software is now connected to your device/machine remotely through GPRS.
PC/Server
Virtual serial port
(TCP-to-Serial
software)
Proprietary
software
running on PC
INTERNET
Ethernet/GPRS/Wireless
Your device
WirelessCom/G10
Serial connection
(Physical)
Figure 6.2: Wireless setup
Telnet software with TCP/IP
port in listening mode
