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Network management method for power supply in cable TV network

A technology for cable television network and network management, which is applied in the field of network management of power supply in cable television network, can solve the problems that the power supply is not standardized, cannot realize remote control, and is not suitable for broadband IP applications, so as to ensure reliability and save investment. , to avoid the loss of video signals and data

Inactive Publication Date: 2004-06-16
深圳市劲成光纤网络设备有限公司
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AI Technical Summary

Problems solved by technology

[0003] The current two-way HFC network can provide users with high-speed data communication services through cable modems, and adopts the MCNS DOCSIS (Multimedia CableNetwork System Partners' Data Over Cable System Interface Specification) protocol standard for video and data signals, but there is no specification for the power supply. The network management in the network is mainly carried out on the FSK (namely: frequency shift keying) modulator of other manufacturers of cable TV stations, and passively performs status polling and display. Since each manufacturer has not formed a unified standard, such as in Multiple products are used in one HFC network, and status monitoring itself is difficult to realize, and remote control cannot be realized. It is not suitable for the application of broadband IP (Internet Protocol) in HFC access network. So far, there is no complete cable TV power supply in China. network management system

Method used

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  • Network management method for power supply in cable TV network
  • Network management method for power supply in cable TV network
  • Network management method for power supply in cable TV network

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Embodiment Construction

[0019] figure 1 It is a schematic diagram of the cable UPS power supply connected to the HFC network. The control / MAC / framing module and demodulator form the cable router. The downlink signal of the video source and the cable router is mixed by the mixer and distributed to the Rx / Tx module. After being converted into an optical signal by the forward optical transmitter TX, it is transmitted to the optical node Tx / Rx through the optical fiber. An optical node is a device that completes the conversion of optical signals and RF (radio frequency) electrical signals. It converts downlink optical signals into RF electrical signals, and it also converts uplink signals sent by users through the coaxial cable distribution network into optical signals. Signal. The downlink signal is converted into a radio frequency signal by the optical node Tx / Rx and then transmitted to the user through the coaxial cable distribution network. Since the radio frequency signal is attenuated during the ...

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Abstract

A network management method for UPSs in cable TV network containing optical fibre and coaxial cable features that a DOCSIS interface and a RF modem with a fixed address code are connected to said UPS for direct communication in the environment of mixed network and the network management information of the optical receiver and amplifier, driven by the UPS, is transmitted via RF modem and mixed network.

Description

technical field [0001] The invention relates to an information transmission method in a network, in particular to a network management method for an uninterruptible power supply in a cable television network. Background technique [0002] The current cable television system adopts a hybrid fiber-coaxial cable network (HFC: Hybrid Fiber Coaxial). Generally, the public power supply system and the HFC distribution system are two different networks. Between the optical node and the end user, the HFC distribution network Usually several different public power grids are used. When these grids are used to supply power to HFC, any power outage between the optical node and the user will cause interruption of video services, and a power outage of the public grid will cause instantaneous loss of video programs. If the broadband HFC network provides value-added services (such as data, IP telephony and multimedia services), this short power failure may even cause the complete loss of dat...

Claims

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Application Information

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IPC IPC(8): H04N7/22
Inventor 潘劲舟
Owner 深圳市劲成光纤网络设备有限公司
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