Linksys WBP54G V2 manual What Ieee 802.11g features are supported?, What is infrastructure mode?

Page 25

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 24 Page 26
Image 25
Page 24 Page 26
Contents User Guide Word definition Copyright and TrademarksTable of Contents Page Power Port Browsed Devices on Network Screen Select Bridge Adapter a device that adds network functionality to your PC IntroductionWhat’s in This User Guide? Network Topology Planning Your Wireless NetworkRoaming Topology the physical layout of a networkNetwork Layout Overview Getting to Know the Wireless-G Bridge for Phone AdaptersLEDs PortOr IP phone CableRunning the Setup Wizard Starting the Setup WizardCheck for Compatibility Screen Power on the Bridge Screen Wireless-G Bridge Setup Screen Encryption encoding data transmitted in a network WPA11 Security Settings WEP 64-Bit Screen 13 Confirmation Screen Wireless-G Bridge for Phone Adapters 19 Wireless is Now Active Screen 20 Congratulations Screen Common Problems and Solutions Appendix a TroubleshootingSpeed of the wireless connection is very slow What is the Ieee 802.11b standard? Frequently Asked QuestionsWhat is the Ieee 802.11g standard? What Ieee 802.11b features are supported?What is infrastructure mode? What Ieee 802.11g features are supported?What is roaming? What is the ISM band?What is DSSS? What is FHSS? And what are their differences? What is Spread Spectrum?What is WEP? What is WPA?Security Precautions Appendix B Wireless SecuritySecurity Threats Facing Wireless Networks Appendix B Wireless Security Wireless-G Bridge for Phone Adapters Appendix C Upgrading Firmware To upgrade the Bridge’s firmware, follow these instructionsFigure 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 TCP/IP Appendix D Windows HelpAppendix 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 WBP54G Appendix F SpecificationsCertifications Limited Warranty Appendix G Warranty InformationObtaining Warranty Service Technical Support Appendix 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