Linksys WBP54G manual What Ieee 802.11g features are supported?, What is infrastructure mode?

Page 24

Wireless-G Bridge for Phone Adapters

What IEEE 802.11g features are supported?

The product supports the following IEEE 802.11g functions:

•CSMA/CA plus Acknowledge protocol

•OFDM protocol

•Multi-Channel Roaming

•Automatic Rate Selection

•RTS/CTS feature

•Fragmentation

•Power Management

What is infrastructure mode?

When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a wired network through a wireless access point.

What is roaming?

Roaming is the ability of a portable computer to communicate continuously while the user is moving freely throughout an area greater than that covered by a single access point. Before using the roaming function, the workstation must make sure that it is the same channel number with the access point of dedicated coverage area.

To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message. Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes. In such a system, the user’s end node undertakes a search for the best possible access to the system. First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone. Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.

As the user moves on, the end node’s RF transmitter regularly checks the system to determine whether it is in touch with the original access point or whether it should seek a new one. When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.

What is the ISM band?

The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available

Appendix A: Troubleshooting

19

Frequently Asked Questions

Page 23 Page 25
Image 24
Page 23 Page 25
Contents User Guide Copyright and Trademarks Word definitionTable of Contents Power Port List of FiguresFigure C-10 BIN File Information Screen Introduction WelcomeAdapter a device that adds network functionality to your PC What’s in This User Guide? Planning Your Wireless Network Network TopologyRoaming Topology the physical layout of a networkNetwork Layout Getting to Know the Wireless-G Bridge for Phone Adapters OverviewLEDs PortCable Combination CableStarting the Setup Wizard Running the Setup WizardCheck for Compatibility Screen Connecting the Network Cable to a Router Screen Wireless-G Bridge Setup Screen WPA Encryption encoding data transmitted in a network11 Security Settings WEP 64-Bit Screen 13 Confirmation Screen 17 Disconnect the Network Cable from Phone Adapter Screen 19 Wireless is Now Active Screen 20 Congratulations Screen Appendix a Troubleshooting Common Problems and SolutionsSpeed of the wireless connection is very slow Frequently Asked Questions What is the Ieee 802.11b standard?What is the Ieee 802.11g standard? What Ieee 802.11b features are supported?What Ieee 802.11g features are supported? What is infrastructure mode?What is roaming? What is the ISM band?What is Spread Spectrum? What is DSSS? What is FHSS? And what are their differences?What is WEP? What is WPA?Appendix B Wireless Security Security PrecautionsSecurity Threats Facing Wireless Networks Appendix B Wireless Security Wireless-G Bridge for Phone Adapters To upgrade the Bridge’s firmware, follow these instructions Appendix C Upgrading FirmwareFigure C-4 Choose Destination Location Figure C-8 Browsed Devices on Network Screen Click Files Figure C-9 Open Firmware File Disconnect the Ethernet network cable from the PC Appendix D Windows Help TCP/IPAppendix E Glossary Wireless-G Bridge for Phone Adapters Wireless-G Bridge for Phone Adapters Wireless-G Bridge for Phone Adapters Wireless-G Bridge for Phone Adapters Appendix F Specifications WBP54GCertifications Appendix G Warranty Information Limited WarrantyAppendix H Regulatory Information Dual-Band Wireless Access Point Wireless-G Bridge for Phone Adapters Wireless-G Bridge for Phone Adapters Wireless-G Bridge for Phone Adapters Wireless-G Bridge for Phone Adapters Dual-Band Wireless Access Point Appendix I Contact Information
Top Page Image Contents