Prestige 2602HW Series User’s Guide
Appendix E Wireless LAN and IEEE 802.11
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Appendix E
Wireless LAN and IEEE 802.11
A wireless LAN (WLAN) provides a flexible data communications system that you can use to
access various services (navigating the Internet, E-mail, printer services, etc.) without the use
of a cabled connection. In effect a wireless LAN environment provides you the freedom to
stay connected to the network while roaming around in the coverage area.
Benefits of a Wireless LAN
Wireless LAN offers the following benefits:
It provides you with access to network services in areas otherwise hard or expensive to wire,
such as historical buildings, buildings with asbestos materials and classrooms.
It provides healthcare workers like doctors and nurses access to a complete patient’s profile on
a handheld or notebook computer upon entering a patient’s room.
It allows flexible workgroups a lower total cost of ownership for workspaces that are
frequently reconfigured.
It allows conference room users access to the network as they move from meeting to meeting,
getting up-to-date access to information and the ability to communicate decisions while “on
the go”.
It provides campus-wide networking mobility, allowing enterprises the roaming capability to
set up easy-to-use wireless networks that cover the entire campus transparently.
IEEE 802.11
The 1997 completion of the IEEE 802.11 standard for wireless LANs (WLANs) was a first
important step in the evolutionary development of wireless networking technologies. The
standard was developed to maximize interoperability between differing brands of wireless
LANs as well as to introduce a variety of performance improvements and benefits.
The IEEE 802.11 specifies three different transmission methods for the PHY, the layer
responsible for transferring data between nodes. Two of the methods use spread spectrum RF
signals, Direct Sequence Spread Spectrum (DSSS) and Frequency-Hopping Spread Spectrum
(FHSS), in the 2.4 to 2.4825 GHz unlicensed ISM (Industrial, Scientific and Medical) band.
The third method is infrared technology, using very high frequencies, just below visible light
in the electromagnetic spectrum to carry data.
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Страница 40: ...Prestige 2602HW Series User s Guide 40 Introduction to DSL...
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Страница 102: ...Prestige 2602HW Series User s Guide 102 Chapter 6 Wireless LAN Setup...
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Страница 124: ...Prestige 2602HW Series User s Guide 124 Chapter 8 Network Address Translation NAT Screens...
Страница 130: ...Prestige 2602HW Series User s Guide 130 Chapter 9 Introduction to VoIP...
Страница 142: ...Prestige 2602HW Series User s Guide 142 Chapter 10 Voice Screens...
Страница 148: ...Prestige 2602HW Series User s Guide 148 Chapter 12 Time and Date...
Страница 162: ...Prestige 2602HW Series User s Guide 162 Chapter 13 Firewalls...
Страница 192: ...Prestige 2602HW Series User s Guide 192 Chapter 16 Remote Management Configuration...
Страница 206: ...Prestige 2602HW Series User s Guide 206 Chapter 17 Universal Plug and Play UPnP...
Страница 212: ...Prestige 2602HW Series User s Guide 212 Chapter 18 Logs Screens...
Страница 214: ...Prestige 2602HW Series User s Guide 214 Chapter 19 Maintenance Figure 102 System Status...
Страница 224: ...Prestige 2602HW Series User s Guide 224 Chapter 19 Maintenance...
Страница 232: ...Prestige 2602HW Series User s Guide 232 Chapter 20 Introducing the SMT...
Страница 236: ...Prestige 2602HW Series User s Guide 236 Chapter 21 Menu 1 General Setup...
Страница 240: ...Prestige 2602HW Series User s Guide 240 Chapter 22 Menu 2 WAN Backup Setup...
Страница 244: ...Prestige 2602HW Series User s Guide 244 Chapter 23 Menu 3 LAN Setup...
Страница 248: ...Prestige 2602HW Series User s Guide 248 Chapter 24 Wireless LAN Setup...
Страница 254: ...Prestige 2602HW Series User s Guide 254 Chapter 25 Internet Access...
Страница 268: ...Prestige 2602HW Series User s Guide 268 Chapter 27 Static Route Setup...
Страница 272: ...Prestige 2602HW Series User s Guide 272 Chapter 28 Bridging Setup...
Страница 288: ...Prestige 2602HW Series User s Guide 288 Chapter 29 Network Address Translation NAT...
Страница 304: ...Prestige 2602HW Series User s Guide 304 Chapter 31 Filter Configuration...
Страница 324: ...Prestige 2602HW Series User s Guide 324 Chapter 34 System Information and Diagnosis...
Страница 340: ...Prestige 2602HW Series User s Guide 340 Chapter 35 Firmware and Configuration File Maintenance...
Страница 345: ...Prestige 2602HW Series User s Guide Chapter 36 System Maintenance 345 24 hour intervals after starting...
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Страница 350: ...Prestige 2602HW Series User s Guide 350 Chapter 37 Remote Management...
Страница 362: ...Prestige 2602HW Series User s Guide 362 Chapter 39 Call Scheduling...
Страница 366: ...Prestige 2602HW Series User s Guide 366 Chapter 40 Internal SPTGEN...
Страница 372: ...Prestige 2602HW Series User s Guide 372 Chapter 41 Troubleshooting...
Страница 376: ...Prestige 2602HW Series User s Guide 376 Appendix A Hardware Specifications...
Страница 396: ...Prestige 2602HW Series User s Guide 396 Appendix C IP Subnetting...
Страница 402: ...Prestige 2602HW Series User s Guide 402 Appendix E Wireless LAN and IEEE 802 11...
Страница 409: ...Prestige 2602HW Series User s Guide Appendix H Triangle Route 409...
Страница 410: ...Prestige 2602HW Series User s Guide 410 Appendix H Triangle Route...
Страница 434: ...Prestige 2602HW Series User s Guide 434 Appendix J Command Interpreter...
Страница 436: ...Prestige 2602HW Series User s Guide 436 Appendix K Firewall Commands...