Broadband remote-transmission centralized control system based on multiple SHDSLs
A centralized control system, broadband technology, used in the field of communication
Active Publication Date: 2013-09-25
NANJING HUADONG ELECTRONICS GRP
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Problems solved by technology
There is no multi-point to multi-point multi-channel SHDSL broadband remote communication system
Method used
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[0010] control attached figure 1 , a broadband remote transmission centralized control system based on multi-channel SHDSL, which is characterized in that it includes M central office equipment, M sound enhancement equipment and M remote equipment, wherein the central office equipment is interconnected with the remote equipment, and the sound enhancement equipment It is installed between the central office equipment and the remote equipment, and the central office equipment can be cascaded to form a long-distance, broadband self-organizing local area network. The said M = 1, 2.. N.
[0011] The central office equipment, sound reinforcement equipment and remote equipment all use SHDSL modulation modules; the transmission bandwidth of the central office equipment, sound reinforcement equipment and remote equipment is adjustable from 128Kpbs to 8Mpbs, and the transmission distance under light duplication lines is 3.5 Km to 15Km; the central office device is capable of accessing t...
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The invention discloses a broadband remote-transmission centralized control system based on multiple SHDSLs. The broadband remote-transmission centralized control system based on the multiple SHDSLs is characterized by comprising M local side devices, M repeater devices and M far-end devices, wherein M is equal to 1, 2, 3...N, the local side devices and the far-end devices are mutually connected, the repeater devices are arranged between the local side devices and the far-end devices, and the local side devices are used in a cascade mode so that a remote broadband-self-organization local area network can be formed. The broadband remote-transmission centralized control system based on the multiple SHDSLs has the advantages that the multiple far end devices are accessed and managed in a centralized mode through the local side devices; the local side devices serve as the center, a plurality of far-end devices and repeater devices are equipped, a multimedia comprehensive digital communication system network which integrates packet switching and circuit switching is formed, and the radiation radius can reach tens of kilometers; one single local side device has 10 paths of double twisted-pair broadband communication, a plurality of local side devices can be piled up to form a larger self-organization network and circuit software does not need to be changed.
Description
technical field [0001] The invention relates to a multi-channel SHDSL-based broadband remote transmission centralized control system, which belongs to the technical field of communication. Background technique [0002] SHDSL (Symmetric High bit rate Digital Subscriber Line), a single-pair high-speed digital subscriber line, follows ITU-T G.991.2, G994.2 and other protocol standards. It is developed on the basis of HDSL technology. In recent years, the protocol has been supplemented . SHDSL adopts TC-PAM encoding method, the higher the encoding, the faster the transmission speed. With the extended TC-PAM 4 / 8 / 16 / 32 / 64 / 128, the transmission bandwidth of SHDSL covers the range of 64Kbps~15296 Kbps. Only one pair of telephone lines is needed to realize multiple communication transmission types such as voice, data and video, which greatly reduces the consumption of copper wire resources of operators and users. Another feature of SHDSL lies in the advantages of its TC-PAM modula...
Claims
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IPC IPC(8): H04B3/04H04L12/28
Inventor 丁昌青严奎沈瑞松冯宝理陈民志黄瑞平董文华陈玥凌孝明
Owner NANJING HUADONG ELECTRONICS GRP