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Что (кто) такое High bit-rate Digital Subscriber Line - определение
HDSL2; High bit rate Digital Subscriber Line 2; High bit rate digital subscriber line 4; HDSL4; High bit rate digital subscriber line 2
Найдено результатов: 13678
High-bit-rate digital subscriber line
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 (HDSL) is a telecommunications protocol standardized in 1994. It was the first digital subscriber line (DSL) technology to use a higher frequency spectrum over copper, twisted pair cables.
High-bit-rate digital subscriber line 2
High-bit-rate digital subscriber line 2 (HDSL2) is a standard developed by the American National Standards Institute (ANSI) Committee T1E1.4 and published in 2000 as ANSI T1.
High bit-rate Digital Subscriber Line
<communications, protocol> (HDSL) A form of {Digital
Subscriber Line}, providing T1 or E1 connections over two
or three twisted-pair copper lines, respectively. Unlike
most other forms of DSL HDSL is not a typical consumer
service, it's used mostly to replace traditional T1/E1
connections, such as connecting PBXes to telco offices.
The advantage of HDSL over the Alternate Mark Inversion line
coding scheme traditionally used on T1/E1 lines is that it
requires about an order of magnitude lower bandwidth to carry
the same traffic.
(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
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 data / bit rate Digital Subscriber Line (Reference: BELLCORE, AT&T, DSL)
VDSL
![SoC]]](https://commons.wikimedia.org/wiki/Special:FilePath/Lantiq XWAY VRX288 V1.1.png?width=200 "SoC]]")
![UK VDSL]] cabinet](https://commons.wikimedia.org/wiki/Special:FilePath/Openreach Man at cabinet.jpg?width=200 "UK VDSL]] cabinet")
![DSLAM]] Cabinet installed by [[PCCW]] in [[Pat Heung]], [[Hong Kong]].](https://commons.wikimedia.org/wiki/Special:FilePath/PCCW DSLAM Cabinet.jpg?width=200 "DSLAM]] Cabinet installed by [[PCCW]] in [[Pat Heung]], [[Hong Kong]].")
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
VDSL
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 data / bit rate Digital Subscriber Line (Reference: DSL)
VDSL
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-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.
ADSL
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![[[Frequency spectrum]] of modem on ADSL line](https://commons.wikimedia.org/wiki/Special:FilePath/ADSL spectrum Fritz Box Fon WLAN.png?width=200 "[[Frequency spectrum]] of modem on ADSL line")
DSL WHERE DOWNSTREAM BANDWIDTH EXCEEDS UPSTREAM BANDWIDTH
Asynchronous Digital Subscriber Line; Asymmetric digital subscriber line; Adsl; Full-rate ADSL; Fastpath; ADSL1; Splitterless ADSL; Splitterless adsl; Asymmetric DSL; Asymmetric Digital Subscriber Line; ADSL line
ADSL is a method of transmitting digital information at high speed over telephone lines. ADSL is an abbreviation for 'asynchronous digital subscriber line'. (COMPUTING)
ADSL is always on, which makes your PC much more vulnerable to hacking.
Википедия
High-bit-rate digital subscriber line 2
High-bit-rate digital subscriber line 2 (HDSL2) is a standard developed by the American National Standards Institute (ANSI) Committee T1E1.4 and published in 2000 as ANSI T1.418-2000. Like its predecessor HDSL, HDSL2 provides a symmetric data rate of 1,544 kbit/s in both the upstream and downstream directions at a noise margin of 5-6 dB. Its primary purpose was also to provision a T-1 line, only this technology relies on fewer wires - two instead of four - and therefore costs less to set up. The modulation technique used in HDSL2 is TC-PAM, which is also used in G.SHDSL, as opposed to 2B1Q in HDSL. Spectral shaping is applied to increase compatibility with ADSL and HDSL2 on the same bundle. HDSL4 provides the same bitrate as HDSL2, but uses four wires instead of two, to increase robustness. On an AWG26 local loop, the reach of HDSL2 is 9,000 feet (2.7 km), while that of HDSL4 is 11,000 feet (3.4 km).
