CN102098197A

CN102098197A - Signal access device for connecting optical network with coaxial network

Info

Publication number: CN102098197A
Application number: CN2010105971422A
Authority: CN
Inventors: 陈亮; 奚玉玺
Original assignee: HANGZHOU PREVAIL OPTOELECTRONIC EQUIPMENT CO Ltd
Current assignee: HANGZHOU PREVAIL OPTOELECTRONIC EQUIPMENT CO Ltd
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2011-06-15

Abstract

The invention relates to a signal access device for connecting an optical network with a coaxial network, comprising a master control switching module, a power supply module and an optical network unit (ONU) module, wherein the master control switching module is connected with the power supply module and the ONU module. The signal access device is characterized by comprising a plurality of communication line terminal (CLT) modules, an MMEAD driver module and a multi-media extension (MME) adapter module, wherein each CLT module is independent of the ONU module in a physical form, and provided with an operation administration and maintenance (OAM) protocol interface; the ONU module is in butt joint with the MME adapter module by the MMEDA driver module; and the MME adapter module is connected with the OAM protocol interface of each CLT module. The signal access device has the beneficial effects of being capable of adapting to the CLT modules in different schemes, being convenient to extending the different CLT modules in accordance with actual subscriber number, and being quick in networking speed.

Description

A kind of signal access device that connects optical-fiber network and coaxial network

Technical field

The present invention relates to communication technique field, particularly a kind of signal access device that connects optical-fiber network and coaxial network.

Background technology

Along with the fast development of information technology and industry, the data transmission network that makes up separately round business such as data, voice, videos exists problems, such as a plurality of bearer network repeated construction, causes the wasting of resources, operation cost aggravation etc.Because present majority of network finishes with cable, network sets up and does not spread to also that Fiber to the home, and the situation in FTTC or Fiber-To-The-Building road is many, and what coaxial in this case conduct was last 200 meters is inevitable to the family access medium.At present, broadcasting and TV are being quickened the transformation of two-way data communication business, and the signal access device that connects optical-fiber network and coaxial network is just essential.Existing optical-fiber network and coaxial network connected mode mostly adopt the PON+EoC access technology.The EOC technology is based on the general designation of the Ethernet access technology of coaxial cable, and its technical scheme is numerous.The EoC scheme of Cai Yonging is divided into active, passive type in the market, and active EoC is divided into the high and low frequency type.Active EoC is based on modulation technique mostly, and such as HomePlugAV, HomeBPL, HomePNA etc., but their working frequency range and modulation technique are all variant.We are called an EoC network with a connected CNU terminal of CLT module, the CLT module can only connect the CNU of same approach, be that same EoC network can only be made up of CLT and the CNU with a kind of EoC scheme, can only connect the CNU of HomePlugAV as the CLT module of HomePlugAV.At present, the EoC of various schemes all has, and in the network insertion process, a kind of EoC of scheme will mate a kind of PON of scheme, needs from new design access device in the process that expands new EoC network, and networking speed is slow, and workload is big.Explanation of nouns: PON is an EPON, EoC is that the ether data are transmitted by coaxial cable, ONU is an optical node, CLT is a coaxial line terminal, MMEAD is an administrative messag inlet adapter, and MME is the administrative messag inlet, and OAM is an Operations, Administration and Maintenance, CATV is a cable TV, and HomePlugAV, HomeBPL, HomePNA are communication technology standard.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of networking speed fast, the connection optical-fiber network of the CLT module of convenient expansion different schemes and the signal access device of coaxial network.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of signal access device that connects optical-fiber network and coaxial network, comprise master control Switching Module, power module and ONU module, the master control Switching Module connects power module and ONU module, it is characterized in that: also comprise some CLT modules, MMEAD driver module and MME adaptation module, each CLT module all is independent of the ONU module on physical aspect, each CLT module is equipped with the OAM protocol interface; The ONU module is by MMEAD driver module butt joint MME adaptation module, and the MME adaptation module connects the OAM protocol interface of each CLT module.

Described CLT module is HomePlugAV CLT module or HomeBPL CLT module or HomePNA CLT module.

The master control Switching Module connects power module and ONU module, the ONU module is connected several CLT modules by the MMEAD driver module with the MME adaptation module, each CLT module can be the CLT module of HomePlugAV scheme, also can be the CLT module of HomeBPL scheme, can also be the CLT module of HomePNA scheme.Power module is controlled the start or stop of this device.The light signal that wide area network inserts is an ethernet signal by the ONU module converts at first, ethernet signal is a coaxial signal by the CLT module converts, simultaneously, the CLT module also is blended into the CATV anolog TV signals in the coaxial signal, and coaxial signal is transferred in the user family by coaxial cable.CNU terminal equipment in the user family is separated the CATV signal from coaxial signal, all the other signals are reduced to ethernet signal, not only can see simulated television but also purpose that can broadband access thereby reach the user.

The ONU module is docked the OAM protocol interface of each CLT module among the present invention by MMEAD driver module and MME adaptation module.Though the OAM protocol interface of the CLT module setting of different schemes is had nothing in common with each other, but the MMEAD driver module can adapt to variant OAM protocol interface by the MME adaptation module, manage each CLT module concentratedly by the MMEAD driver module, the CLT module of different schemes just can adapt with same ONU module like this.

Each CLT module all is independent of the ONU module on physical aspect, can realize Hot insertion hot swapping between each CLT module and the ONU module, when expanding new CLT module, does not need to redesign the signal access device, and extension of network is convenient and swift.

In sum, the present invention has the CLT module of energy self adaptation different schemes, conveniently expands different CLT modules according to actual user's quantity, the fireballing beneficial effect of networking.

Description of drawings

Fig. 1 is for connecting the signal access device structural representation of optical-fiber network and coaxial network

Embodiment

As shown in Figure 1, a kind of signal access device that connects optical-fiber network and coaxial network, comprise master control Switching Module 2, power module 1, ONU module 3, MMEAD driver module 4, MME adaptation module 5, HomePlugAVCLT module 6, HomeBPL CLT module 7, HomePNA CLT module 8, HomePlugAV CLT module is provided with HomePlugAV OAM protocol interface 61, HomeBPL CLT module is provided with HomeBPL OAM protocol interface 71, HomePlugAV CLT module is provided with HomePlugAV OAM protocol interface 81, master control Switching Module 2 connects power module 1 and ONU module 3, ONU module 3 connects MMEAD driver module 4, and the MMEAD driver module is by the OAM protocol interface of MME adaptation module 5 each CLT module of butt joint.Master control Switching Module 2 is by the start or stop of power module 1 this device of control.The light signal that wide area network inserts at first is converted to ethernet signal by ONU module 3, ethernet signal is a coaxial signal by each CLT module converts, simultaneously, each CLT module also is blended into the CATV anolog TV signals in the coaxial signal, and coaxial signal is transferred in the user family by coaxial cable.HomePlugAV CNU terminal equipment in the user family or HomeBPL CNU terminal equipment or HomePNA CNU terminal equipment dock with HomePlugAV CLT module or HomeBPL CLT module or HomePNA CLT module accordingly, HomePlugAV CNU terminal equipment after the butt joint or HomeBPLCNU terminal equipment or HomePNA CNU terminal equipment are separated the CATV signal from coaxial signal, all the other signals are reduced to ethernet signal, not only can see simulated television but also purpose that can broadband access thereby reach the user.

Claims

1. signal access device that connects optical-fiber network and coaxial network, comprise master control Switching Module, power module and ONU module, the master control Switching Module connects power module and ONU module, it is characterized in that: also comprise some CLT modules, MMEAD driver module and MME adaptation module, each CLT module all is independent of the ONU module on physical aspect, each CLT module is equipped with the OAM protocol interface; The ONU module is by MMEAD driver module butt joint MME adaptation module, and the MME adaptation module connects the OAM protocol interface of each CLT module.

2. the signal access device of connection optical-fiber network according to claim 1 and coaxial network is characterized in that: described CLT module is HomePlugAV CLT module or HomeBPL CLT module or HomePNA CLT module.