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Что (кто) такое Very high bit-rate Digital Subscriber Line - определение

DIGITAL SUBSCRIBER LINE TECHNOLOGIES

Very-high-bit-rate digital subscriber line 2; VDSL2; Very-high-bit-rate Digital Subscriber Line; VHDSL; Very-high-bit-rate Digital Subscriber Line 2; Very high data rate Digital Subscriber Line; G.993.2; G.993.1; Very High Speed Digital Subscriber Line; Very High Bitrate Digital Subscriber Line; Very High Speed Digital Subscriber Line 2; Very high bitrate digital subscriber line; ITU G.993.2; ITU G.993.1; Very-high-bitrate digital subscriber line; Very high bit rate digital subscriber line; Very high speed digital subscriber line 2; G.vector; G.993.5; Vdsl 2; Vdsl2; Vdsl; Vectoring; Vplus; Very-high-bit-rate digital subscriber line

Very high bit-rate Digital Subscriber Line

<communications, protocol> (VDSL) A form of {Digital Subscriber Line} similar to ADSL but providing higher speeds at reduced lengths. (1998-05-18)

HDSL

TELECOMMUNICATIONS PROTOCOL STANDARDIZED IN 1994, DEVELOPED TO TRANSPORT DS1 SERVICES AT 1.544 MBIT/S AND 2.048 MBIT/S OVER TELEPHONE LOCAL LOOPS WITHOUT A NEED FOR REPEATERS

HDSL; High Data Rate Digital Subscriber Line; High data rate Digital Subscriber Line; G.991.1; High bit rate Digital Subscriber Line; ITU G.991.1; High bit rate digital subscriber line; ITU-T G.991.1

High-level Data Specification Language

HDSL

TELECOMMUNICATIONS PROTOCOL STANDARDIZED IN 1994, DEVELOPED TO TRANSPORT DS1 SERVICES AT 1.544 MBIT/S AND 2.048 MBIT/S OVER TELEPHONE LOCAL LOOPS WITHOUT A NEED FOR REPEATERS

HDSL; High Data Rate Digital Subscriber Line; High data rate Digital Subscriber Line; G.991.1; High bit rate Digital Subscriber Line; ITU G.991.1; High bit rate digital subscriber line; ITU-T G.991.1

High bit-rate Digital Subscriber Line

Википедия

VDSL

Very high-speed digital subscriber line (VDSL) and very high-speed digital subscriber line 2 (VDSL2) are digital subscriber line (DSL) technologies providing data transmission faster than the earlier standards of asymmetric digital subscriber line (ADSL) G.992.1, G.992.3 (ADSL2) and G.992.5 (ADSL2+).

VDSL offers speeds of up to 52 Mbit/s downstream and 16 Mbit/s upstream, over a single twisted pair of copper wires using the frequency band from 25 kHz to 12 MHz. These rates mean that VDSL is capable of supporting applications such as high-definition television, as well as telephone services (voice over IP) and general Internet access, over a single connection. VDSL is deployed over existing wiring used for analog telephone service and lower-speed DSL connections. This standard was approved by the International Telecommunication Union (ITU) in November 2001.

Second-generation systems (VDSL2; ITU-T G.993.2 approved in February 2006) use frequencies of up to 30 MHz to provide data rates exceeding 100 Mbit/s simultaneously in both the upstream and downstream directions. The maximum available bit rate is achieved at a range of about 300 metres (980 ft); performance degrades as the local loop attenuation increases.

https://en.wikipedia.org/wiki/VDSL

Примеры употребления для Very high bit-rate Digital Subscriber Line

1. The Bonn–based regulator argued in October that VDSL, very high bit rate digital subscriber line, was a new product that should be free from regulation, as it was impossible to tell what services it might spawn.