Cisco Systems WUSB54GX4 What is DSSS? What is FHSS? And what are their differences?, What is WEP?

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Wireless-G USB Network Adapter with SRX400

the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).

What is DSSS? What is FHSS? And what are their differences?

Frequency-Hopping Spread-Spectrum (FHSS) uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver. Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise. Direct-Sequence Spread- Spectrum (DSSS) generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The longer the chip, the greater the probability that the original data can be recovered. Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission. To an unintended receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband receivers.

Would the information be intercepted while transmitting on air?

The Adapter features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling. On the software side, the Adapter offers a variety of security methods, including WEP and WPA, to enhance security and access control. For more information, refer to “Appendix C: Wireless Security.”

What is WEP?

WEP is Wired Equivalent Privacy, a data privacy mechanism based on a shared key algorithm, as described in the

IEEE 802.11 standard. For more information, refer to “Appendix C: Wireless Security.”

What is WPA?

WPA is Wi-Fi Protected Access, a wireless security protocol that can be used in conjunction with a RADIUS server.

For more information, refer to “Appendix C: Wireless Security.”

What is RADIUS?

RADIUS is Remote Authentication Dial-In User Service, which uses an authentication server to control network access. For more information, refer to “Appendix C: Wireless Security.”

Appendix A: Troubleshooting

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Frequently Asked Questions

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Contents Wireless- G Word definition How to Use This User GuideCopyright and Trademarks Table of Contents USB Network Adapter with SRX400’s LEDs USB Network Adapter with SRX400’s USB PortProfiles Screen Welcome IntroductionWhat’s in This User Guide? Adapter a device that adds network functionality to your PCIntroduction What’s in This User Guide? Network Topology Planning Your Wireless NetworkRoaming Topology the physical layout of a networkNetwork Layout LEDs USB PortSetup Wizard’s Welcome Screen Starting the Setup WizardWindows will begin copying the files onto your PC Setting Up the AdapterAvailable Wireless Network Screen Setting Up the Adapter with an Available NetworkWPA-Personal Needed for Connection 10 Available Wireless Network Screen Setting Up the Adapter with Manual Setup12 Wireless Mode Screen WEP 17 Wireless Security WPA2 Personal Screen EAP-TLS Radius 22 Confirm New Settings Screen Accessing the Wireless Network Monitor Using the Wireless Network MonitorWireless Network Status screen Link Information ScreensMore Information Wireless Network Status Screen Wireless Network StatusProfile Wireless Network StatisticsSite Information Site SurveyWPA-Personal Needed for Connection Profiles Screen Profiles12 Create a New Profile Creating a New Profile14 Available Wireless Network Screen 16 WPA-Personal Needed for Connection 20 Network Settings Screen 21 Wireless Mode Screen 23 Wireless Security Screen 26 Wireless Security WPA2 Personal Screen 27 Wireless Security WPA Enterprise Using EAP-TLS Screen 30 Wireless Security Radius Screen 32 Congratulations Screen Common Problems and Solutions Appendix a TroubleshootingMy computer does not recognize the USB Network Adapter USB Network Adapter does not work properlyWhat 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 is ad-hoc mode?What is roaming? What is ISM band?What is WEP? What is DSSS? What is FHSS? And what are their differences?What is WPA? What is RADIUS?Figure B-1 Wireless Network Monitor Icon Appendix B Using Windows XP Wireless Zero ConfigurationFigure B-4 Available Wireless Network Figure B-6 Network Connection Wireless Security Security Threats Facing Wireless Networks Appendix C Wireless SecuritySecurity Precautions Appendix C Wireless Security Wireless-G USB Network Adapter with SRX400 Network Neighborhood/My Network Places Appendix D Windows HelpShared Resources Appendix E Glossary Wireless-G USB Network Adapter with SRX400 Wireless-G USB Network Adapter with SRX400 Wireless-G USB Network Adapter with SRX400 Wireless-G USB Network Adapter with SRX400 Model Appendix F SpecificationsOperating Temp Storage TempLimited Warranty Appendix G Warranty InformationFCC Statement Appendix H Regulatory InformationWireless-G USB Network Adapter with SRX400 Wireless-G USB Network Adapter with SRX400 Wireless-G USB Network Adapter with SRX400 Wireless-G USB Network Adapter with SRX400 Wireless-G USB Network Adapter with SRX400 Appendix I Contact Information

WUSB54GX4 specifications

The Cisco Systems WUSB54GX4 is a versatile and efficient wireless USB adapter designed to enhance connectivity for a range of devices. This compact hardware solution, developed by Cisco, is particularly popular for users looking to upgrade their network capabilities with minimal fuss.

One of the standout features of the WUSB54GX4 is its support for the 802.11g wireless standard, which allows for data transfer rates of up to 54 Mbps. This provides a reliable and robust connection, making it suitable for demanding tasks such as streaming videos or online gaming. Additionally, the device is backward compatible with the older 802.11b standard, ensuring that it can connect seamlessly to an array of routers and networks, regardless of their specifications.

Leveraging advanced MIMO (Multiple Input Multiple Output) technology, the WUSB54GX4 offers not only improved range but also enhanced signal quality. MIMO technology utilizes multiple antennas to transmit and receive data, significantly boosting wireless performance and reducing interference. This is particularly useful in environments with heavy obstructions or where the signal must traverse longer distances.

The installation process for the WUSB54GX4 is user-friendly, making it accessible even for those who may not be tech-savvy. The adapter typically comes with a plug-and-play setup, which means that users can quickly connect it to their computers without complicated configurations. Additionally, the included software provides easy management of network settings, allowing users to monitor their connection and troubleshoot issues efficiently.

Another notable characteristic of the WUSB54GX4 is its portability. The compact design allows users to easily carry it and use it with various devices, making it an excellent choice for mobile professionals or individuals frequently on the move. Furthermore, it supports both Windows and Mac OS, broadening its usability across different platforms.

In conclusion, the Cisco Systems WUSB54GX4 exemplifies a robust wireless USB adapter offering useful features such as high-speed connectivity, MIMO technology, and ease of installation. Its compact size and compatibility with multiple operating systems make it a popular choice for enhancing wireless capabilities in various settings, from home offices to on-the-go scenarios.
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