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WIreless LAN User’s Guide
WIRELESS NETWORK CONSIDERATIONS
■
The WLAN supports IEEE802.11a/b/g and operates in
the 2.4GHz ISM band and the 5 GHz UNII bands.
■
Microwave ovens will interfere with the operation of
WLAN device as microwave ovens operate in the same
2.4GHz frequency range that IEEE802.11b/g devices
operate in. Interference by microwaves does not occur
with radio which operates in the 5 GHz RF band.
■
Wireless devices that transmit in the 2.4 GHz fre-
quency range may interfere with operation of WLAN
devices in IEEE802.11b/g modes. Symptoms of inter-
ference include reduced throughput and large
amounts of frame errors. It is HIGHLY recommended
that these interfering devices be powered off to ensure
the proper operation of the WLAN device.
DEACTIVATING THE WLAN DEVICE
Deactivation of the WLAN device may be desired in
certain circumstances (to extend battery life) or where
certain environments require it (i.e. hospitals, clinics,
airplanes, etc.). Fujitsu mobile computers employ two
methods with which to deactivate the WLAN device:
■
Using the Wireless On/Off Switch, or,
■
In Windows Vista, using the WLAN icon in the
taskbar.
■
In Windows XP, using the Intel PROSet Software.
Deactivation using the Wireless On/Off Switch
The WLAN device can be deactivated quickly and effi-
ciently by toggling the Wireless On/Off Switch to the Off
position. (Figure A-3)
The wireless On/Off switch has no effect on non-Wire-
less LAN models.
Windows Vista: Deactivation using the icon in the
taskbar
1. Right-click the WLAN icon in the taskbar at the
bottom right of your screen.
Choose Disconnect from a network.
Deactivation using Intel PROSet for Wireless Utility
The WLAN device can be deactivated in Windows using
the Intel PROSet for Wireless utility. The procedure to
accomplish this:
1. Click [Start]-> [All Programs].
2. Select Intel ProSet Wireless, then click on Intel
ProSet Wireless from the menu that appears. The
Intel ProSet Wireless utility will be displayed.
3. At the bottom left corner of the window, select
Wireless Off from the dropdown list.
ACTIVATING THE WLAN DEVICE
Activation of the WLAN device can be accomplished
using the same methods as the deactivation process
■
Using the Wireless On/Off Switch
■
In Windows XP using Intel PROSet for Wireless utility
■
In Windows Vista, by right-clicking the WLAN icon
then clicking “Connect to a network”
Figure A-3. Wireless LAN On/Off Switch Location
Figure A-2. Access Point (Infrastructure) Mode Network
ADSL modem,
cable modem,
or similar
Internet
Wired LAN
Access Point*
Wireless LAN
*An optional hub for a wired
LAN may be required depending
upon the type of access point used.
Volume
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WLAN Switch
N6420-Vista.book Page 91 Friday, February 16, 2007 4:48 PM