Filter
Top Products
53
Wireless LAN User’s Guide
How to Handle This Device
The WLAN device comes pre-installed in your mobile
computer. Under normal circumstances, it should not be
necessary for you to remove or re-install it. The Oper-
ating System that your mobile computer comes with has
been pre-configured to support the WLAN device.
WIRELESS NETWORK CONSIDERATIONS
■
The WLAN devices support IEEE802.11a+b/g.
■
The devices operate in the 2.4GHz ISM band the 5
GHz lower and middle 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 IEEE802.11a radio which operates in the 5 GHz
RF band.
■
Wireless devices that transmit in the 2.4 GHz fre-
quency range may interfere with the operation of
WLAN devices in IEEE802.11b/g modes. Interference
symptoms include reduced throughput, intermittent
disconnects, and large amounts of frame errors. It is
HIGHLY recommended that interfering devices be
powered off to ensure proper operation of the WLAN.
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 XP, using the Intel PROSet Software or
Atheros Client Utility 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 5-3)
The wireless On/Off switch has no effect on non-Wire-
less LAN models.
The Wireless LAN/Bluetooth On/Off
Switch will power off both the optional
wireless LAN and Bluetooth devices at
the same time. To enable or disable
either one of the devices individually,
perform the following steps:
1. Slide the Wireless LAN/Bluetooth
on/off switch to On position.
2. XP: In the Control Panel, double-
click the Fujitsu Radio Control icon.
Vista: Use the Bluetooth icon in the
system tray to disable Bluetooth
radio.
3. In the window that appears, click
the button associated with Blue-
tooth and/or Wireless LAN Status
to enable or disable the individual
devices.
4. Click [OK].
Figure 5-2. 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.
B5FJ-4181-01EN-01.book Page 53 Wednesday, August 22, 2007 9:04 AM