Appendix B - Wireless Technology

TKIP

Short for Temporal Key Integration, is part of the IEEE 802.11i encryption standard for wireless LANs. TKIP provides per-packet key mixing, message integrity check and re-keying mechanism, thus ensuring every data packet is sent with its own unique encryption key. Key mixing increases the complexity of decoding the keys by giving the hacker much less data that has been encrypted using any one key.

WEP

Short for Wired Equivalent Privacy (WEP), is a scheme used to secure wireless networks (Wi-Fi). A wireless network broadcasts messages using radio which are particularly susceptible to hacker attacks. WEP was intended to provide the confidentiality and security comparable to that of a traditional wired network. As a result of identified weaknesses in this scheme, WEP was superseded by Wi-Fi Protected Access (WPA), and then by the full IEEE 802.11i standard (also known as WPA2).

WPA

Wi-Fi Protected Access (WPA and WPA2) is a class of system used to secure wireless (Wi-Fi) computer networks. It was created in response to several serious weaknesses researchers had found in the previous WEP system. WPA implements the majority of the IEEE 802.11i standard, and was intended as an intermediate measure to take the place of WEP while 802.11i was prepared (WPA2).

WPA is designed to work with all wireless network interface cards, but not necessarily with first generation wireless access points.

To resolve problems with WEP, the Wi-Fi Alliance released WPA (FIG. 96) which integrated 802.1x, TKIP and MIC. Within the WPA specifications the RC4 cipher engine was maintained from WEP. RC4 is widely used in SSL (Secure Socket Layer) to protect internet traffic.

FIG. 96 WPA Overview

Modero Touch Panels

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AMX NXD-700Vi manual Tkip

NXD-700Vi specifications

The AMX NXD-700Vi is a cutting-edge touchscreen control panel designed to enhance the user experience in various AV environments, including conference rooms, classrooms, and home theaters. Featuring a sleek and modern design, the NXD-700Vi combines advanced technology with an intuitive interface, making it an ideal solution for both commercial and residential applications.

At the heart of the NXD-700Vi is a 7-inch high-resolution LCD touchscreen, which delivers vibrant colors and crisp details, ensuring that users can easily navigate through the various functionalities and options available. The screen is equipped with an anti-glare coating that allows for optimal visibility in different lighting conditions, making it suitable for any setting.

One of the standout features of the NXD-700Vi is its customizable interface. Users can personalize the layout and graphics, tailoring the control panel to meet specific needs or branding requirements. This flexibility not only enhances usability but also provides a unique touch that can resonate with the intended audience.

The NXD-700Vi employs advanced networking capabilities, allowing for seamless integration with a wide array of AV devices and systems. It supports Ethernet connectivity, enabling users to control various devices from anywhere within the network. This flexibility is particularly useful in large installations where managing multiple systems can be cumbersome.

In addition to its networking capabilities, the NXD-700Vi incorporates infrared (IR) control, enabling it to communicate directly with many AV components. This dual-functionality ensures that users can manage their complete AV setup, including projectors, audio systems, and lighting, all from a single interface.

Another notable characteristic of the NXD-700Vi is its robust security features. The panel can be configured to restrict access to certain functions or settings, ensuring that sensitive content or equipment is protected from unauthorized use. This is particularly critical in environments where information security is paramount.

The unit is also designed for easy installation and management. With a built-in web server, users can configure the NXD-700Vi remotely, streamlining setup and maintenance. This feature reduces the need for on-site visits, saving both time and resources.

Overall, the AMX NXD-700Vi stands out as a sophisticated, versatile solution for modern AV control needs. With its intuitive touchscreen, customizable interface, and comprehensive integration capabilities, it is an essential tool for enhancing control and interaction in both commercial and residential environments.