At approximately 1. The maximum range for VDSL2 is approximately 1, meters. Copper loop lines are susceptible to signal attenuation and copper loop lengths which limit fast transmission speeds. VDSL2 supports the capability of bonding two or more twisted copper pairs to increase banding. But pair-bonding also functions to extend the reach of a copper network. Pair-bonding can be compared to adding more lanes to a freeway so that it can support more traffic. VDSL2 uses vectoring to remove crosstalk and interference reduces actual performance.
VDSL2 measures crosstalk from all lines in a network and applies anti-phase signals to cancel out noise. VDSL2 vectoring works in similar fashion to noise-cancelling headphones. Assia Inc. Having a cable bundle consisting of 2 or more VDSL2 profiles will exhibit intermittent sync, port status errors and poor performance.
The 30a profile will run on 30 Mhz while the 17a profile will run on 17Mhz. This also means it can offer a much quicker time to market. Another advantage of the technology is its reliance on DSL, which remains the main method of connecting to the internet worldwide.
What are the disadvantages? According to Alcatel-Lucent, sophisticated noise cancellation is CPU intensive and therefore works best over a few hundred lines. The noise cancellation process also requires measurements to be available from all lines, meaning that the lines all need to be under full control of a single service provider in order to achieve best performance.
In addition, over longer distances vectoring technology is less effective at improving download speeds. This means that in some rural areas, where homes and businesses are thousands of metres away from the street telecoms cabinet, the technology will not significantly enhance the existing connection. Where is vectoring technology being deployed?
Belgacom is also introducing vectoring technology in its domestic Belgium market through a partnership with Alcatel-Lucent. Western European countries are considered to have the most to gain from the technology due to their extensive copper infrastructure. Sign in with LinkedIn. Higher latency does not affect download or upload speeds throughput so you wouldn't notice any effect on web browsing or multimedia, but you might care about it if you were an online gamer or financial trader, where a millisecond can make a material difference i.
Interleaving is a method of error correction used on DSL lines; an interleaved profile can be applied to a line to improve resilience as opposed to a 'fast' profile to burst of errors. Interleaving can add additional latency of up to 40ms depending on the maximum interleave depth that has been enabled on the line profile.
INP Impluse Noise Protection is a method of protecting against or correcting the effects of sudden bursts of noise on your line caused by adjacent equipment, lines or other interference.
The value of INP 1,2,4 etc. The higher the INP the more resilient a line is to a burst of errors but at the cost of higher overall latency. The INP scheme used could be G. INP G. Various DrayTek models support Vectoring and G. INP - please check products' individual specifications on this web site to check.
You may also be able to download the latest firmware to add support - check the release notes. Downloads and Resources Contact Support. JavaScript seems to be disabled in your browser.
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