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A catv module and system with double working mode
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A technology of dual working mode and mode, applied in the direction of duplex signal operation, electrical components, selective content distribution, etc., to achieve the effect of increased bandwidth, convenient switching, and convenient operation
Active Publication Date: 2017-02-08
SHANGHAI BROADBAND TECH
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[0005] At present, in the HFC network, there are still CMTS signals in some areas. In the near future, the CMTS may be removed or the CMTS signal will be added, so the cable bridge switch will face an upgrade.
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Embodiment 1
[0032] The present embodiment provides a kind of CATV module of double working mode, as figure 1 As shown, the CATV module 1 of the dual working mode includes: an EoC module 11 , a switch slot 12 , a first mixer 13 , a second mixer 14 , and a third mixer 2 .
[0033] The switching slot 12 includes a first port, a second port, a third port, and a fourth port; the fourth port is connected to the EoC module 11; the first mixer 13 includes an LP end of 5-30MHz, 36-100MHz HP end, COM end; the LP end of the first mixer is connected to the first port; the COM end of the first mixer is connected to the second port.
[0034] Described second mixer 14 comprises the LP end of 5-65MHz, the HP end of 87-1000MHz, COM end; The LP end of the second mixer is connected with the described 3rd port; The COM end of the second mixer is the first output.
[0035] The third mixer 2 includes an LP end of 5-65MHz, an HP end of 87-1000MHz, and a COM end; the COM end of the third mixer is both an input...
Embodiment 2
[0042] The present embodiment provides a kind of CATV system of double working mode, as figure 2 As shown, the CATV system with dual working modes includes: a third mixer 2 , a first distributor 3 , a second distributor 4 and at least one CATV module 1 with dual working modes.
[0043] Each double working mode CATV module 1 includes: an EoC module 11 , a switch slot 12 , a first mixer 13 , and a second mixer 14 .
[0044] The switching slot 12 includes a first port, a second port, a third port, and a fourth port; the fourth port is connected to the EoC module 11 .
[0045] Described first mixer 13 comprises the LP end of 5-30MHz, the HP end of 36-100MHz, COM end; The LP end of the first mixer is connected with the described 1st port; The COM end of the first mixer is connected with the described first port. The second port is connected; the HP end of the first mixer is connected with the input end of the second distributor 4 .
[0046] Described second mixer 14 comprises th...
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Abstract
The invention provides a double-working mode CATV module and system. The module comprises an EoC module, a switching groove, a first mixer and a second mixer. The switching groove comprises a first port, a second port, a third port and a fourth port; the fourth port is connected with the EoC module; the first mixer comprises a 5-30MHz LP end, a 36-100MHz HP end and a COM end; the LP end of the first mixer is connected with the first port; the COM end of the first mixer is connected with the second port; the second mixer comprises a 5-65MHz LP end, an 87-1000MHz HP end and a COM end; the LP end of the second mixer is connected with the third port; the COM end of the second mixer servers as a first output end; the fourth port of the switching groove is connected with the first port; when the second port and the third port are connected, the CATV module works in a 64 mode; and when the fourth port of the switching groove is connected with the third port, the CATV module works in a 74 mode. By using the module and system provided by the invention, convenient switching between the two modes is realized, the two modes are not interfered with each other, and upgrading processing can be carried out without dismounting a cable bridge switch.
Description
technical field [0001] The invention belongs to the technical field of HFC network equipment, and relates to a switch, in particular to a CATV module and system with dual working modes. Background technique [0002] The cable bridge switch is a kind of optical node access equipment for radio and television NGB construction based on the two-way transformation of the radio and television HFC network using the EPON+EoC access mode; The central office unit, EPON terminal ONU, and network unit are all independent components. [0003] Among them, HFC is the abbreviation of HybridFiber-Coax, which refers to a broadband transmission platform that combines an optical fibertransmission system with a coaxial cable distribution network. With the development of technology, HFC network is often endowed with new meanings, especially CATV (Community Antenna Television, cable TV network) network that uses hybridoptical fiber coaxial for broadband digital communication. At present, accor...
Claims
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Application Information
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