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