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WIreless LAN User’s Guide
Access Point (Infrastructure) Mode
(See Figure A-2)
Infrastructure mode refers to a wireless network archi-
tecture in which devices communicate with wireless or
wired network devices by communicating through an
Access Point. In infrastructure mode, wireless devices
can communicate with each other or can communicate
with a wired network. Corporate wireless networks
operate in infrastructure mode because they require
access to the wired LAN in order to access computers,
devices, and services such as file servers, printers, and
databases.
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 Intel WLAN device is a dual-mode wireless net-
work card (supports IEEE802.11b/g); the Atheros
device supports IEEE802.11a/b/g.
■
The Intel WLAN device operates in the 2.4GHz ISM
band; the Atheros WLAN device also operates in the 5
GHz lower and middle UNII bands.
■
The maximum range of the WLAN device indoors is
typically 80 feet (25 meters). Please note that the max-
imum range you achieve may be shorter or longer than
80 feet, depending on factors such as access point
transmit power, number and density of obstructions,
or external RF interference.
■
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 2.4GHz fre-
quency range may interfere with the operation of
WLAN devices in IEEE802.11b/g modes. Symptoms of
interference include reduced throughput, intermittent
disconnects, 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, 1)
the Wireless On/Off Switch and 2) in Windows 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 A-3)
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.
B Series.book Page 91 Friday, April 23, 2004 11:41 AM
- Fujitsu LifeBook 1
- B Series 1
- Copyright 2
- Table of Contents 4
- USER-INSTALLABLE FEATURES 5
- TROUBLESHOOTING 5
- CARING FOR YOUR 5
- LIFEBOOK NOTEBOOK 5
- SYSTEM SPECIFICATIONS 6
- GLOSSARY 6
- APPENDIX: 6
- WIRELESS LAN USER’S GUIDE 6
- ABOUT THIS GUIDE 10
- FUJITSU CONTACT INFORMATION 10
- WARRANTY 10
- Getting to Know 12
- Your LifeBook 12
- Overview 14
- Locating the Controls 15
- LEFT-SIDE PANEL COMPONENTS 16
- RIGHT-SIDE PANEL COMPONENTS 17
- BOTTOM COMPONENTS 18
- Anti-theft lock slot 19
- Status Indicator Panel 20
- Keyboard 22
- Touchpad Pointing Device 24
- TOUCHPAD CONTROL ADJUSTMENT 25
- TOUCH SCREEN 25
- Getting to Know Your LifeBook 26
- Volume Control 27
- (1) Application A Button 28
- (3) Internet Button 28
- (2) Application B Button 28
- (4) E-Mail Button 28
- Enter Button 28
- APPLICATION PANEL 29
- PRECAUTIONS 29
- UNINSTALLING THE SECURITY 29
- PANEL APPLICATION 29
- LAUNCHING APPLICATIONS WITH 30
- Getting Started 32
- Power Sources 34
- Display Panel 35
- Starting Your 36
- LifeBook Notebook 36
- BOOTING THE SYSTEM 37
- Registration 38
- Power Management 39
- HIBERNATE MODE 40
- DISPLAY TIMEOUT 40
- HARD DISK TIMEOUT 40
- WINDOWS POWER MANAGEMENT 40
- RESTARTING THE SYSTEM 40
- POWER OFF 41
- User-Installable 42
- Features 42
- Lithium ion Battery 44
- REPLACING THE BATTERY 45
- External Floppy 46
- Disk Drive* 46
- Write Protected 47
- Write Enabled 47
- PC Cards 48
- Compact Flash Cards 49
- REMOVING COMPACT FLASH CARDS 50
- Memory Upgrade Module 51
- OF NEW MEMORY CAPACITY 52
- Port Replicator 53
- FRONT PANEL COMPONENTS 54
- ATTACHING THE PORT REPLICATOR 54
- DETACHING THE PORT REPLICATOR 54
- Device Ports 55
- DOCKING PORT 56
- MICROPHONE JACK 56
- HEADPHONE JACK 56
- EXTERNAL MONITOR PORT 56
- Diskette Controller: 61
- Disabled 61
- POWER ON SELF TEST MESSAGES 68
- MODEM RESULT CODES 69
- Restoring Your 70
- Pre-installed Software 70
- AUTOMATICALLY DOWNLOADING 71
- DRIVER UPDATES 71
- Care and Maintenance 72
- BATTERIES 75
- FLOPPY DISKS AND DRIVES 75
- PC CARDS 76
- BatteryAid 82
- Glossary 84
- Regulatory Information 91
- ACCORDING TO LOCAL, STATE, OR 93
- FEDERAL LAWS 93
- Appendix 94
- FCC REGULATORY INFORMATION 96
- Before Using the Wireless LAN 97
- DEACTIVATING THE WLAN DEVICE 98
- Wireless LAN 99
- On/Off Switch 99
- FLOW OF OPERATIONS 100
- CONFIGURATION USING WIRELESS 100
- ZERO CONFIGURATION TOOL 100
- INTEL PROSET SOFTWARE 101
- CONFIGURATION USING 101
- CONFIGURATION USING ATHEROS 102
- CLIENT UTILITY SOFTWARE 102
- CONNECTION TO THE NETWORK 104
- WIreless LAN User’s Guide 106
- Troubleshooting 107
- Wireless LAN Glossary 108
- IP address information 110
- Specifications 111
- LifeBook B Series 113
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