Linksys WPC4400N manual What Ieee 802.11g features are supported?

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Wireless-N Business Notebook Adapter

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 ad-hoc mode?

When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other. This type of network will not communicate with any wired network.

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 user to communicate continuously while 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.

Appendix A: Troubleshooting

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Frequently Asked Questions

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Contents Wireless-N Business Notebook Adapter How to Use this User Guide Copyright and TrademarksTable of Contents Windows XP Wireless Zero Configuration List of Figures Front Panel10 Creating Profiles Manual Setup Network Settings 44 Administration Modify Access Point Account Introduction WelcomeWhat’s in this User Guide? Wireless-N Business Notebook Adapter Roaming Planning your Wireless NetworkNetwork Topology Network Layout Getting to Know the Wireless-N Business Notebook Adapter LED IndicatorsStarting the Setup Setup Wizard’s License AgreementConnecting the Adapter Setting up the AdapterWEP WPA-PersonalWPA2-Personal CongratulationsManual Setup Creating a Profile11 Ad-Hoc Mode Settings 13 Wireless Security WPA Personal WPA Enterprise EAP-TLS17 Wireless Security WPA2 Enterprise-EAP WPA2 EnterpriseRadius Leap Using the Wireless Network Monitors Using the Wireless Network MonitorAccessing the Wireless Network Monitor Link InformationLink Information Wireless Network Status StatusLink Information Wireless Network Statistics StatisticsProfiles Profile InformationCreating Profiles Available Wireless Network Create a New ProfileCreating Profiles Congratulations 10 Creating Profiles Manual Setup Network Settings 12 Creating Profiles Manual Setup Wireless Security WEP WPA Personal WPA Enterprise WPA2 Enterprise Radius 21 Creating Profiles Manual Setup Wireless Security Leap 23 Creating Profiles Manual Setup Congratulations 25 Editing Profiles Ad Hoc Mode Editing a ProfileWEP 28 Editing Profiles Wireless Security WPA Personal 30 Editing Profiles Wireless Security WPA Enterprise EAP-TLS 33 Editing Profiles Wireless Security WPA2 Enterprise Peap Radius EAP-TLS Leap 39 Editing Profiles Congratulations Site Survey Site InformationTroubleshooting AdministrationAccess Point Account Log in as the Access Points administrator45 Administration Security Monitor Account Security Monitor AccountAdministrative Functions in the Wireless Network Monitor Administration Login Security Monitor AccountClassification ClassificationAdvanced Settings Trusted MAC AddressesAllowed Vendor List Configuration Allowed Ssid ConfigurationAllowed Channel Configuration AP Inventory Security MonitorChannel Usage Client Inventory Alert ListAlert Information 14 Security Monitor POP-UP AlertAdvice Windows FirewallAppendix a Troubleshooting Common Problems and SolutionsFrequently Asked Questions What is 802.11n standard?What Ieee 802.11g features are supported? What is ISM band? Appendix B Windows XP Wireless Zero Configuration Windows XP Wireless Zero ConfigurationFigure B-4 Available Wireless Network Figure B-6 Network Connection Wireless Security Appendix C Wireless-N Interoperability Figure C-1 Advanced TabSecurity Threats Facing Wireless Networks Appendix D Wireless SecuritySecurity Precautions Appendix D Wireless Security Wireless-N Business Notebook Adapter Network Neighborhood/My Network Places Appendix E Windows HelpShared Resources Appendix F Glossary Wireless-N Business Notebook Adapter Wireless-N Business Notebook Adapter Wireless-N Business Notebook Adapter Wireless-N Business Notebook Adapter Standards Appendix G SpecificationsAuthentication Tolerance +/- 1.5dBDimensions Unit Weight 76 oz 0.05 kg CertificationsAppendix H Warranty Information Limited WarrantyAppendix I Regulatory Information FCC StatementWireless-N Business Notebook Adapter Wireless-N Business Notebook Adapter Wireless-N Business Notebook Adapter Wireless-N Business Notebook Adapter Wireless-N Business Notebook Adapter Appendix J Contact Information

WPC4400N specifications

The Linksys WPC4400N is a wireless networking card that epitomizes the fusion of advanced technology and user-friendly design, intended primarily for laptops and desktop computers. This product stands out for its compatibility with the IEEE 802.11n standard, which promises improved wireless coverage and higher data transfer speeds compared to its predecessors.

One of the most significant features of the WPC4400N is its dual-band capability. Operating on both the 2.4GHz and 5GHz frequency bands, it allows users to choose the optimal frequency for their needs. The 2.4GHz band offers extended range, making it ideal for general browsing and streaming, whereas the 5GHz band provides increased speed, making it perfect for high-bandwidth activities such as gaming and video conferencing.

Incorporating MIMO (Multiple Input Multiple Output) technology, the WPC4400N enhances wireless performance by using multiple antennas to transmit and receive data simultaneously. This results in a more stable connection and a significant boost in throughput. MIMO technology ensures that users experience fewer drops in connectivity and improved speeds, even when multiple devices are connected to the network.

Additionally, the WPC4400N supports backward compatibility with the 802.11b and 802.11g standards. This feature ensures that users can connect to older routers and devices seamlessly, providing flexibility and convenience in mixed-device environments. The card is equipped with a simple installation process, making it easy for users to set up their network connection without requiring extensive technical knowledge.

The WPC4400N also prioritizes security, featuring advanced encryption protocols such as WPA2, which safeguards user data from potential threats. The device’s robust security features help protect sensitive information when used in public networks, making it a reliable choice for both home and business users.

In summary, the Linksys WPC4400N is a versatile wireless networking card that combines dual-band connectivity, MIMO technology, backward compatibility, and strong security measures. These characteristics make it an excellent choice for users who demand high-performance wireless connections in a variety of settings. Whether for streaming, gaming, or day-to-day internet use, the WPC4400N is designed to deliver a seamless and efficient networking experience.
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