UTHSC Wireless LAN

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UTHSC Wireless LAN

• Todays wireless technology is designed to be an
  extension of the LAN (Local Area Network),
  providing mobility within an office, building, or
  campus environment.
• 802.11 technology achieves this by putting an
  Ethernet signal over a radio frequency.
• 802.11 is similar to your desktop Ethernet
  connection, although not designed to replace your
  desktop hard-wired LAN connection.
• 802.11 is designed to provide mobility for
  laptops, allowing users to move about their
  environment maintain LAN connectivity.
• 802.11 LANs are created by placing an Access
  Point with an antennae
• which provides a circular Cell of LAN
  signal coverage.
• Laptops with built-in 802.11 technology, or
  laptops with PC card slots
• which accept 802.11 cards, can then
  receive the Access Points LAN
• signal, as well as send a LAN signal back
  to the Access Point.
• Voila, were networking!!!

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UTHSC Wireless LAN

• 802.11 Wireless Ethernet Standards
• 802.11a
• 5.6 gHz RF with a 50-60 ft range
• 56 mb Ethernet
• Good/Bad Costly to deploy due to short range
  requiring large number of Access Points. Higher
  bandwidth.
• 802.11b
• 2.4 gHz RF with a 150-160 ft range
• 11 mb Ethernet
• Good/Bad Affordable deployment due to much
  increased range requiring fewer access points.
  Low bandwidth.
• the New Kid on the block
• 802.11g
• 2.4 gHz RF with a 100-125 ft range
• 56 mb Ethernet
• Good/Bad Same coverage as 802.11b, but with the
  bandwidth of 802.11a.
• Wireless Nirvana!!!

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UTHSC Wireless LAN

• UTHSC currently has 802.11b wireless LAN coverage
  in several buildings on campus providing mobile
  LAN connectivity to Faculty, Students Staff.
• 90 of UTHSCs current wireless LAN
  infrastructure is upgradeable to the new 802.11g
  technology, providing a path for increasing
  bandwidth as needed, while maintaining existing
  802.11b wireless LAN coverage.
• UTHSC 802.11b wireless LAN coverage includes
• Alexander Bldg All floors including
  Library
• Coleman Bldg 1st floor including
  Auditoriums
• G.E.B. Student Study areas on the 1st,
  2nd 3rd floors
• Plaza Bldg Lobby Coverage includes
  dining areas
• S.A.C. All floors including Meeting
  Rooms Fitness Facility (SAC only)
• Hyman Bldg All floors including
  Chancellors Conference Room
• A few other areas are covered for
  Clinical Research efforts.

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UTHSC Wireless LAN

• To access the UTHSC 802.11b wireless LAN all you
  need is a Laptop with a built-in 802.11b chipset,
  or a Laptop with an 802.11b PC card.
• To connect youll need to enable the 802.11b
  wireless LAN interface in your Laptop. It should
  then see the 802.11b LAN signal, requesting the
  entry of a Network Key to access the wireless
  LAN. The Key info is available from the Help
  Desk the Help Desks webpage.
• After enabling your 802.11b wireless LAN
  interface on your laptop, you will need to
  register for a TCP/IP address for your wireless
  LAN interface, just as with your hard-wired LAN
  connection. And then youre ready to be a UTHSC
  wireless LAN mobile user.
• This registration also creates your wireless
  authentication profile, assuring only registered
  UTHSC Faculty, Students Staff devices are
  accessing the UTHSC wireless LAN.
• UTHSC wireless LAN utilizes 802.11 WEP (Wireless
  Encryption Protocol) 64-bit technology to protect
  data during transfer future campus network
  infrastructure upgrades will further increase
  wireless LAN security.
• UTHSC 802.11b wireless LAN configuration
  instructions are available on the Help Desk
  webpage at
• http//www.utmem.edu/c
  omp/campus/wireless.htm
• Or you can call the UTHSC Help Desk for
  wireless LAN configuration assistance at 8-2222.

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UTHSC Wireless LAN

• PC Cards
• Most any IEEE 802.11b wireless PC card should
  work with the UTHSC wireless LAN. UTHSC Network
  Services
• has tested many PC cards from vendors such as
  Apple, Cisco, Orinoco 3com.
• UTHSC Network Services recommends the 3com X-jack
  PC card, which features a retractable antennae
  that allows the card to remain in the laptop
  during transport.
• 3coms X-jack PC cards are available in both an
  802.11b version (65) an 802.11a/b/g version
  (110).
• They can be purchased at CDW/Mac-PC Warehouse,
  Global Computing most Internet PC/Mac
  companies.
• NOTE Many current PDAs Palm PCs
  also offer 802.11b wireless LAN capabilities.

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UTHSC Wireless LAN

• If you or your department is interested in UTHSC
  wireless LAN coverage in your building or
  facilities, please contact UTHSC Network Services
  at 8-8460.
• UTHSC Network Services will perform a site survey
  to determine the number of Access Points required
  to provide the wireless LAN coverage requested,
  providing detailed installation costs.
• UTHSC Network Services is always available to
  answer questions discuss any concerns you or
  your department may have regarding wireless
  networking.
• Wm.Billy Hatcher, Jr.
  bhatcher_at_utmem.edu
• Mgr, Network Services
  901-448-8122