VDSL
Very High Rate DSL - The peculiarity of the VDSL (after the family xDSL) Is the possibility of bringing flow via an optical fiber connection to the sub -DispatchersThen distribute them among customers via the copper pair and equipment DSLAM Under the specific allocation. This innovative technology could be used by France Telecom to improve eligibility for DSL technologies.
VDSL can reach very high speeds: it can provide up to 52 Mbps downstream and 2 Mbps upstream over a single copper pair.
VDSL 2
Providing 100 Mbit / s on the copper pair connecting the subscriber to less than 500 m, VDSL 2 is a good candidate for high flow the end of the local loop.
VDSL 2 standard was May 27, 2005 by theInternational Telecommunication Union (ITU) under the name G.993.
Using a spectrum of frequencies extended up to 30 MHz, 12 MHz cons for the first generation of VDSL, VDSL 2 dope at 100 Mbit / s theoretical throughput transmitted over a telephone subscriber in the down direction and upward simultaneously, a total aggregate throughput 200 Mbit / s per port. At this level of throughput, the maximum range of a VDSL connection drops to less than 500 m between the subscriber and the equipment operator, knowing that combinations asymmetric 70 Mbit / s (downstream) and 30 Mbit / s (bottom) are also possible. Techniques of echo cancellation were added to satisfy the need of transmission between 1 and 2 km.
Heatpipe
Set up a cooling fan and a coil fins (called usually radiator), intended to be attached (with glue and clips) on a Processor d 'computer.
Ver
Programs often confused with virus. But unlike them, they are Self on HDD instead parasitize the existing files.
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