IGW/400-UART – Getting Started
SSV EMBEDDED SYSTEMS 10
2.5 Arranging and Testing the WLAN Connection on the PC
This step requires a PC with an IEEE 802.11b or IEEE 802.11g WLAN interface. This
interface can be formed with an USB WLAN stick, a WLAN PC card or similar exten-
sions. If you install such an extension, please follow the instructions of the manufacturer
absolutely.
The WLAN interface of your PC can operate in two different modes: the ad-hoc mode
and the infrastructure mode. The ad-hoc mode corresponds to a wireless point-to-point
connection, e.g. your PC and the IGW/400-UART. The infrastructure mode is needed if
you want to connect your PC with a WLAN access point. The software of your PC
WLAN extension allows to choose between both operating modes. Details can be found
in the manual of the manufacturer and in the help system of the WLAN extension.
Figure 8: Arranging the WLAN connection
Set the WLAN interface of your PC to ad hoc mode. If your WLAN PC software allows
it, search for available WLAN devices which run also in ad hoc mode. Most WLAN PC
applications offer a button to start the search. The founded WLAN communication part-
ners are shown in a small window. Usually you can choose your desired communication
partner. Your WLAN PC software should find a communication partner with the identi-
fier (network name / SSID) SSV_IGW400. Connect the WLAN interface of the PC with
that device.
Older WLAN PC applications which do not support the automatic search for WLAN de-
vices must be configured manually with the WLAN parameters of the IGW/400-UART.
In that case choose the WLAN channel 11 and the name (network name / SSID)
„SSV_IGW400“.
Change the IP address for the WLAN interface of your PC to 192.168.3.1 and the subnet
mask to 255.255.255.0. On a Windows PC you can do that via the system settings. Refer
to the Windows help for more information.
