Fujitsu LifeBook N6420 User Manual download pdf (Page 99)

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

WLAN Switch

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