A Glossary of Terms. 9 July 2004, Rev. B
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1 2004 Allied Telesyn, Inc. A Glossary of Terms 9 July 2004, Rev. B A glossary of terms to guide readers through the jargon and acronyms of Wireless Local Area Network technology. PAGE 1 of 7
2 2004 Allied Telesyn, Inc. A Glossary of Terms A glossary of terms to guide readers through the jargon and acronyms of Wireless Local Area Network technology standard Developed as a standard by the Institute of Electrical and Electronic Engineers (IEEE, or I-triple-E), is a radio technology used for wireless local area networks (WLANs) is the parent standard of several technologies operating across several different frequencies a The IEEE nomenclature for wireless networking operating at 5 GHz with a maximum data transfer rate of 54 Mbps. The a specification offers more radio channels than its sister technology b b The IEEE nomenclature for wireless networking operating at 2.4 GHz with a maximum data transfer rate of 11 Mbps g The IEEE nomenclature for wireless networking operating at 2.4 GHz with a maximum data transfer rate of 11 Mbps. This technology distinguishes itself from b by using a different radio technology to boost bandwidth. access point A device that transfers data between a wireless network and a wired network. bandwidth A relative range of frequencies that can carry a signal without distortion on a transmission medium. bits per second (bps) A measure used to quantify data transmission speed over communication lines. It is based on the number of bits that can be sent or received per second. Do not confuse bits per second little bps with bytes per second BIG Bps. While bps measures transmission speed, Bps measures storage capability. PAGE 2 of 7
3 Bluetooth wireless technology A technology used to link laptop and desktop computers, personal digital assistants (PDAs), and cellular phones, allowing them to transmit data without the need for cables or wires. Bluetooth operates at 2.4 GHz and has a range of 30 feet. bridge A LAN product that allows connection of networks or subnetworks with similar architectures. client The computer from which you will access drives, directories, files, and programs that are stored on the server. See also server. compression The act of reducing the size of data to be stored or transmitted in order to save transmission time, capacity, or storage space. encryption The transformation of data, for the purpose of privacy, into an unreadable format until reformatted with a decryption key. encryption key The alphanumeric (letters and numbers) series that enables data to be encrypted and then decrypted thereby allowing it to be shared privately among members of a network. Ethernet A type of LAN that enables the transmission of data, whether computer, audio, or video. Ethernet uses CSMA/CD (carrier sense multiple access with collision detection). Ethernet is always capitalized. gateway A LAN feature that allows devices on two different subnets to communicate with each other. HotSpot A location where you can access Wi-Fi service via a wireless-enabled device. HotSpots are often found within coffee shops, airports, train stations, convention centers, hotels, or similar public gathering places. IEEE (Institute of Electrical and Electronics Engineers) Founded in 1884 as the AIEE, the IEEE was formed in 1963 when AIEE merged with IRE. IEEE is an organization composed of engineers, scientists and students. The IEEE is best known for developing standards for the computer and electronics industry. IP (Internet Protocol) A set of rules used to send and receive messages at the Internet address level. PAGE 3 of 7
4 IP telephony Technology that supports voice, data, and video transmission via IP-based LANs, WANs, and the Internet. This includes VoIP (Voice over IP). IP address A 32-bit number that identifies each sender or receiver of information that is sent across the Internet. An IP address has two parts: an identifier of a particular network on the Internet and an identifier of the particular device (which can be a server or a workstation) within that network. LAN (Local Area Network) A network that encompasses a small radius, such as an office building. Contrasts to WAN (wide area network). See also Ethernet and peer-to-peer network. Network Interface Card (NIC) An adapter card installed in a controller that enables connection to a network. The card contains both the hardware to accommodate the cables and the software to use the network's protocols. (Also referred to as a network adapter card or PCI card.) RF (Radio Frequency) A frequency at which coherent electromagnetic radiation of energy is useful for communications purposes. roaming In wireless networking, roaming refers to the ability to move from one access point coverage area to another without interruption in service or loss in connectivity. server A computer that is configured to provide services to the network, such as files and programs. See also client. standard protocol A communications protocol capable of controlling communications between two devices connected by a single data communication line. WAN (Wide Area Network) A network that encompasses a large area and involves routing nodes. Contrasts to LAN (local area network). WEP (Wired Equivalent Privacy) A security protocol for wireless local area networks (WLANs) defined in the b standard. WEP aims to provide security by encrypting data over radio waves so that it protects transmissions. PAGE 4 of 7
5 Wi-Fi (Wireless Fidelity) This trade term is promoted by the Wireless Ethernet Compatibility Alliance (WECA). Products certified as Wi-Fi by WECA are interoperable even if they are from different manufacturers. A user with a Wi-Fi product can use any brand of access point with any other brand of client hardware that is built to the Wi-Fi standard. WLAN (wireless LAN or Wireless Local Area Network) A communication system serving as either an extension or alternative to a wired LAN within a building or campus. Using electromagnetic waves, a WLAN transmits and receives data through the air, minimizing the need for wired connections. Grateful acknowledgement is made to TechWeb s TechEncylopedia, AetherSystems.com, Internet.com, and CIOMagazine.com for use of some of the above definitions. PAGE 5 of 7
6 A global company with nearly two decades of continuous profitability. Allied Telesyn focuses entirely on end-toend, purpose-built Ethernet applications. A world-class engineering and support organization spanning five continents and more than 30 countries. Founded in 1987 with the goal of producing feature-rich, reliable, standardsbased networking products, Allied Telesyn has a proven track record in bridging the gap left by other Ethernet networking manufacturers, whose solutions are often limited in scope or cost-prohibitive. By taking cues directly from our customers and leveraging our global manufacturing competencies, we ve evolved a market-focused approach to system development that is geared entirely to applications, rather than individual components. And by concentrating on battle-tested, end-to-end solutions for vertical market applications we avoid the scattershot, companyfocused approach common in the industry. Our tagline: It s our Network, too is a testament to our high-level of accountability and to our investment in our customers bottom line success. Allied Telesyn focuses entirely on end-to-end, purpose-built Ethernet and IP applications; with a complete line of networking products that includes Layer 2 switches, Layer 3 switches, carrier class fiber/copper Multiservice Access Platforms, wireless access points, wireless adapter cards and residential gateways. No other networking vendor can match Allied Telesyn s breadth and depth of Ethernet products we are the leading manufacturer of media converters, unmanaged Fast Ethernet switches and hubs, fiber optic network adapters and other feature-rich interconnectivity products, worldwide. Additionally, Allied Telesyn has developed a world class systems engineering and support organization that ensures networks are designed and implemented to handle the stress of providing voice, video and data services. With engineering, manufacturing, sales, and distribution divisions strategically located throughout the Americas, Europe, Asia and Japan, Wireless LAN: A Glossary of Terms, 6 July 2004, Rev. B PAGE 6 of 7
7 The ideal choice for cost-conscious IT professionals who are looking for highquality, feature-rich network solutions. Allied Telesyn is able to deploy solutions anywhere in the world, quickly and efficiently. And by rigorously testing products in design and support centers and leveraging our design and manufacturing competencies, Allied Telesyn is able to offer solutions for the access edge that are both customized and plug-and-play. This ideal combination helps our customers keep costs low, speed network deployment and maximize network uptime. Our customer-driven approach combined with a pragmatic, value-based pricing scheme and a superlative service organization has made Allied Telesyn a global networking leader, with more than 17 years of continuous profitability and products deployed in more than 50,000 companies in 30 countries and five continents. Allied Telesyn: the ideal choice for costconscious IT professionals who are looking for high-quality, feature-rich network solutions at a lower price. This white paper was adapted with permission from Intermec s published paper: Wireless LAN Glossary. Wireless LAN: A Glossary of Terms, 6 July 2004, Rev. B PAGE 7 of 7
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