Blenheim IT Specialists
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   Extricom's Interference-FreeTM Architecture - Physical Topology

 Wireless Switch at the "edge"

  • UltraThinTM Access Points connected directly to Switch
  • Access Points contain multiple, 802.11a/b/g radios
  • Standard Wi-Fi clients

 

 

extricom layout

 

  The Extricom solution is classified as a "switched wireless LAN" architecture. There are two main elements to the solution: a central wireless switch, which is connected to an array of access points we call UltraThin Access Points. This infrastructure solution supports any standard, off-the-shelf Wi-Fi client, without any extra or proprietary technology on that client. Note that, while we use the same terminology that is common to the entire "switched WLAN" industry segment, this is as far as the comparison goes. The key to understanding the differentiation of Extricom's system, is to look at the function that the two types of devices - switch and access point - actually perform in our system.

 

   

Functional Concept 

 

  • The same channel is placed everywhere
  • Placement of AP is determined based only on where capacity is needed
  • The WLAN Switch performs the function of the traditional access point
  • Client associates with the Switch, not the AP
  • The switch prevents interference through packet-by-packet control of AP transmissions
  • The AP acts as a radio point; performs no transmission processing; contains no software

 

extricom blanket

 

  The switch then creates a zone of coverage for each channel; or channel blanket. From the client's perspective, when it is inside the channel blanket, it believes it is always associated to a single access point.

   The Extricom system extends this blanket idea to multiple 802.11 channels, which creates a set of overlapping channel blankets. With this, each channel is available everywhere, as shown in the picture.  

 

  • Each UltraThin Access Point contains multiple radios
  • Switch controls multiple overlapping "channel blankets"

 

 

  Summary - Extricom WLAN System

  • Wireless tailored to business needs
    •  Multiple services and user types supported without compromise
  • Wired-like experience to the wireless LAN
    • Unmatched capacity and mobility performance
  • Dramatically simplified deployment and maintenance
    • Eliminate the single biggest cost of WLAN ownership
  • A "must-have" for real-time services such as Voice over Wi-Fi
  • A "must-have" for the toughest capacity and mobility challenges 

 

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