Archive for the ‘WLAN Switches’ Category
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Radio frequency (abbreviated RF, rf, orr.f.)
The frequencyof an RF signal is inversely proportional to the wavelengthof the EM field to which it corresponds. At 9 kHz, the free-spacewavelength is approximately 33 kilometers (km) or 21 miles (mi). At the highestradio frequencies, the EM wavelengths measure approximately one millimeter (1 mm). As the frequency isincreased beyond that of the RF spectrum, EM energy takes the form ofinfrared (IR), visible, ultraviolet (UV), X rays, and gamma rays.
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single stream 802.11n
The goal of single-stream 802.11n is to improve the quality of service on mobile devices by taking advantage of 802.11n’s wider radio frequency channel and mechanism for decreasing time between transmissions. Single-stream 802.11n takes advantage of the fact that the second draft of the 802.11n specification
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Push Voice is a service
tracking for cost monitoring, audit and compliance records
immediate use of company extensions and phone numbers
use of leased lines and negotiated calling rates. -
Optical wireless refers to the combined use of two technologies
A major problem facing the developers of fiber optic communications systems is the fact that it is expensive to provide each end user with a separate fiber optic line. While this has been done for large corporations in a few geographic regions, the fiber-to-the-home ideal remains impractical. But RF wireless at ultra-high frequencies (UHF) and microwave frequencies can carry broadband signals to individual computers at substantial data speeds, and the cost is reasonable.
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Protected Extensible Authentication Protocol
Cisco Systems, Microsoft and RSA Security are promoting PEAP as an Internet standard. Currently in draft status, the protocol is gaining support and is expected to displace Cisco’s proprietary Lightweight Extensible Authentication Protocol (LEAP).
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patch antenna
Patch antennas are also known as panel, flat panel or microstrip antennas. They are formed by overlaying two metallic plates, one larger than the other, with a dielectric sheet in the middle. This type of antenna is usually encased in white or black plastic, not only to protect the antenna, but also to make it easy to mount. Because they are flat, thin and lightweight, patch antennas are often hung on walls or ceilings where they remain visually unobtrusive and blend easily into the background.
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One Laptop Per Child
OLPC is not, at heart, a technology program, nor is the XO a product in any conventional sense of the word. OLPC is a non-profit organization providing a means to an end—an end that sees children in even the most remote regions of the globe being given the opportunity to tap into their own potential, to be exposed to a whole world of ideas, and to contribute to a more productive and saner world community.
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Improve in Aruba
Because improve newly, Aruba will be prevented a mobility system of saving the cost to use for meeting the strict security requirement of retail industry, and the legacy and new mobile device through standing reliably and employing handing over and investing in protecting.
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Update OS in Aruba
The bandwidth is controlled –Solve the obtuse customer’s problem and allow one grade of protocols of service of every SSID
The sound manages and controls –Expand but the elasticity, -
Siemens’ goal VOIP
This notice is set up on main VoIP communication file of Siemens through the foundation in the range of enterprise of setting up mobility. Through offering safely, can regulate and the manageable foundation of centre, it is that enterprises dispose the solution moved proved on a large scale that Siemens offers ability for enterprise now.
