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Internet speed test. License. Freeware. Website. www .speedtest .net. Speedtest.net, also known as Speedtest by Ookla, is a web service that provides free analysis of Internet access performance metrics, such as connection data rate and latency. It is the flagship product of Ookla, a web testing and network diagnostics company founded in 2006 ...
Cross section of a single-mode optical fiber patch cord end, taken with a fiberscope. The circle is the cladding, 125 microns in diameter. Debris is visible as a streak on the cross-section, and glows due to the illumination. A typical single-mode optical fiber has a core diameter between 8 and 10.5 µm and a
Transmission rates are defined by rate of the bitstream of the digital signal and are designated by hyphenation of the acronym OC and an integer value of the multiple of the basic unit of rate, e.g., OC-48. The base unit is 51.84 Mbit/s. [2] Thus, the speed of optical-carrier-classified lines labeled as OC-n is n × 51.84 Mbit/s.
An optical time-domain reflectometer ( OTDR) is an optoelectronic instrument used to characterize an optical fiber. It is the optical equivalent of an electronic time domain reflectometer which measures the impedance of the cable or transmission line under test. An OTDR injects a series of optical pulses into the fiber under test and extracts ...
Fibre Channel ( FC) is a high-speed data transfer protocol providing in-order, lossless [1] delivery of raw block data. [2] Fibre Channel is primarily used to connect computer data storage to servers [3] [4] in storage area networks (SAN) in commercial data centers . Fibre Channel networks form a switched fabric because the switches in a ...
Google's test of a super-fast Internet connection in Kansas City is off to a speedy start. A survey by analysts at Bernstein Research finds 42 percent of residents in Kansas City have signed up ...
Acoustic representation of the speed of light, at every beep the light makes a full circle around the equator. Given that the equatorial circumference of the Earth is about 40 075 km and that c is about 300 000 km/s, the theoretical shortest time for a piece of information to travel half the globe along the surface is about 67 milliseconds.
Multi-mode optical fiber is a type of optical fiber mostly used for communication over short distances, such as within a building or on a campus. Multi-mode links can be used for data rates up to 800 Gbit/s. Multi-mode fiber has a fairly large core diameter that enables multiple light modes to be propagated and limits the maximum length of a ...
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