CN203761398U - FTTH (Fiber To The Home) extension equipment suitable for point-to-point axial access - Google Patents
FTTH (Fiber To The Home) extension equipment suitable for point-to-point axial access Download PDFInfo
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- CN203761398U CN203761398U CN201320878935.0U CN201320878935U CN203761398U CN 203761398 U CN203761398 U CN 203761398U CN 201320878935 U CN201320878935 U CN 201320878935U CN 203761398 U CN203761398 U CN 203761398U
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Abstract
The utility model discloses FTTH (Fiber To The Home) extension equipment suitable for point-to-point axial access, and the equipment comprises a photoreceiver module, an ONU module, a plurality of front-end data multiplexer modules, and at least one terminal data multiplexer. The signal output end of the photoreceiver module is connected with the high-frequency input ends of the plurality of front-end data multiplexer modules. The signal output end of the ONU module is connected with the low-frequency input ends of the plurality of front-end data multiplexer modules. The signal output ends of the plurality of front-end data multiplexer modules with the input end of the terminal data multiplexer through coaxial lines. The beneficial effects of the utility model lie in that the equipment makes the most of the conventional coaxial lines in a house of a user; the user does not need to rewire; the equipment achieves the bi-direction of a wired network and a cable television in each room economically and effectivelyafter FTTH.
Description
Technical field
The utility model relates to a kind of FTTH extension device that is applicable to the coaxial access of point-to-point, and this equipment belongs to the technical field of coaxial wide band multi-business Access Network.
Background technology
At present, the application of communication system has obtained the development of advancing by leaps and bounds, digital technology, network technology have obtained popularization and application, along with the release of the broadband internet services such as IPTV, HDTV, VoIP, make user day by day vigorous for the broadband access demand of the multimedia communications such as data, voice, image, the trend of " integration of three networks " is also more and more obvious.
Have data to show, the investment of subscribers feeder accounts for the 40%-50% of whole Access Network investment, if can utilize existing network to realize Broadband Network Access, so just can avoid laying the new communications network involving great expense.Cable TV network (CATV) is as one of the widest network of coverage, there is the feature such as bandwidth, aboundresources, CATV optical fiber simultaneously/coaxial hybrid network is also one of infrastructure of Future Information highway, if can it be transformed, be used for realizing being connected between user and telecommunication transport network, the broadband inserting service of economical and efficient will inevitably be provided for user so.Like this in realizing cable TV network Two-way transformation, for radio network of future generation (NGB) provides the profitable carrier-class broadband cable scheme of registering one's residence.
Fiber to the home, and (FTTH) is a kind of transmission method of optical-fibre communications, be directly optical fiber receive user family in (place that user is required).Particularly, FTTH refers to optical network unit (ONU) is arranged on to household user or enterprise customer place, be in light access series except FTTD (fiber to the desk) the most close user's optical access network application type.The remarkable technical characterstic of FTTH is the bandwidth that not only provides larger, and has strengthened the transparency of network to data format, speed, wavelength and agreement, has relaxed the requirement such as environmental condition and power supply, has simplified and has safeguarded and install.But optical fiber main line has arrived given place in user family, can not arrive each room of user family, if other rooms need the Two-way of wiring logging-on function and cable TV, need extra bracing wire, this seriously damages layout of houses.Nowadays, the wiring in most houses is all interior lines, and a kind of equipment can connect coaxial line transmission Ethernet and cable TV signal, and realizing each room can wiring logging-on function and cable TV Two-way.
What the FTTH of telecommunications adopted is that unidirectional platform is data platform, adopts multicast mode, the bandwidth of 1G, and actual transmissions is 32Mbps code stream, almost can not transmit a set of high-definition television program; Be that bi-directional platform is RF broadcast platform and data platform and the FTTH of CATVA adopts, the bandwidth of 1G, and the actual 6Gbps code stream that can transmit, can transmit hundreds of cover high-definition television program, and what our this system adopted is bi-directional platform.
HomePlug AV, MOCA technology etc. have all realized each room desktop of fiber-to-the-subscriber, and their equipment cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of FTTH extension device that is applicable to the coaxial access of point-to-point, solves wiring logging-on function and cable TV Two-way after Fiber to the home, and this equipment cost is low, signal stabilization.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of FTTH extension device that is applicable to the coaxial access of point-to-point, comprise optical receiver module, ONU module, plurality of front end data multiplexer module and at least one terminal data multiplexer, described optical receiver module signal output part is connected with the high frequency input terminal of described plurality of front end data multiplexer module, described ONU module by signal output is connected with the low frequency input terminal of described plurality of front end data multiplexer module, described front end data multiplexer module signal output part is connected with described terminal data multiplexer input through coaxial line, wherein, described terminal data multiplexer low frequency port is connected with computer, for ether data-signal is transferred to computer, high frequency port is connected with CATV set-top-box, be used for Cable TV Signal Transmission to CATV set-top-box.
Preferably, described optical receiver module signal output part is connected with the high frequency input terminal of described plurality of front end data multiplexer module respectively through splitter.
Preferably, described ONU module by signal output is connected with the low frequency input terminal of described plurality of front end data multiplexer module respectively through splitter.
Preferably, this FTTH extension device upward signal that is applicable to the coaxial access of point-to-point transmits and uses identical frequency band with downstream signal, and the upward signal employing TDD time division duplex of communicating by letter with downstream signal.
Preferably, this is applicable to FTTH extension device cable TV signal and the broadband ether data-signal frequency division multiplexing of the coaxial access of point-to-point, and wherein broadband ether data-signal frequency band takies 5～65MHz, and cable TV signal frequency band takies 65～860MHz.
Particularly preferred, broadband ether data-signal adopts n-VSB modulation technique.
Front end data multiplexer module transfers to the terminal data multiplexer in user room through coaxial line after cable TV signal and ethernet signal are mixed, and after terminal data multiplexer, again cable TV signal and ethernet signal is connected to respectively to user's TV set-top box (STB) and subscriber computer.
The utility model is in data downstream direction, the mixed signal being made up of low frequency ether data-signal and high frequency cable TV signal issues from local side apparatus broadcast, transfer to terminal equipment data multiplexer through coaxial line, the mixed signal of low frequency ether data-signal and high frequency cable TV signal is separated access user end equipment respectively by data multiplexer; In the utility model, data are transmitted in both directions, in like manner up.
Compared with prior art, the beneficial effects of the utility model are: make full use of existing coaxial line in user family, user does not need rewiring, realize cost-effectively the Two-way that enters each room desktop and cable TV after Fiber to the home.
Brief description of the drawings
Fig. 1 is the module frame chart that is applicable to the FTTH extension device of the coaxial access of point-to-point in the utility model;
Fig. 2 is that the utility model is applicable to the plane graph of the coaxial FTTH extension device accessing of point-to-point in practice.
Embodiment
Consult Fig. 1, this FTTH extension device that is applicable to the coaxial access of point-to-point comprises optical receiver module, ONU module, three front end data multiplexer module and three terminal data multiplexers, optical receiver module signal output part is connected with the high frequency input terminal of a front end data multiplexer module and another splitter through a splitter, another splitter is connected with the high frequency input terminal of two other front end data multiplexer module, ONU module by signal output is connected with three low frequency input terminals of front end data multiplexer module, three front end data multiplexer module signal output parts are connected with three terminal data multiplexer inputs respectively through coaxial line, wherein, terminal data multiplexer low frequency port is connected with computer, for ether data-signal is transferred to computer, high frequency port is with CATV set-top-box and be connected, be used for Cable TV Signal Transmission to CATV set-top-box.
Preferably, this FTTH extension device upward signal that is applicable to the coaxial access of point-to-point transmits and uses identical frequency band with downstream signal, and the upward signal employing TDD time division duplex of communicating by letter with downstream signal.
Preferably, this is applicable to FTTH extension device cable TV signal and the broadband ether data-signal frequency division multiplexing of the coaxial access of point-to-point, and wherein broadband ether data-signal frequency band takies 5～65MHz, and cable TV signal frequency band takies 65～860MHz.
Particularly preferred, broadband ether data-signal adopts n-VSB modulation technique.
Front end data multiplexer module transfers to the terminal data multiplexer in user room through coaxial line after cable TV signal and ethernet signal are mixed, and after terminal data multiplexer, again cable TV signal and ethernet signal is connected to respectively to user's TV set-top box (STB) and subscriber computer.
The utility model is in data downstream direction, the mixed signal being made up of low frequency ether data-signal and high frequency cable TV signal issues from local side apparatus broadcast, transfer to terminal equipment data multiplexer through coaxial line, the mixed signal of low frequency ether data-signal and high frequency cable TV signal is separated access user end equipment respectively by data multiplexer; In the utility model, data are transmitted in both directions, in like manner up.
Consult Fig. 2, in user family for comprising parlor 1, master bedroom 2, secondary room 3 and study 4, cable TV signal enters parlor 1 and accesses optical receiver module 5 through optical fiber 13, data-signal enters parlor 1 through optical fiber 14 and accesses ONU module 6, optical receiver module 5 signal output parts are connected with the high frequency input terminal of a front end data multiplexer module 8 and another splitter 7 through a splitter 7, another splitter 7 is connected with the high frequency input terminal of two other front end data multiplexer module 8, ONU module 6 signal output parts are connected with three low frequency input terminals of front end data multiplexer module 8 respectively, wherein, master bedroom 2, secondary room 3 and study 4 are provided with terminal data multiplexer 10, three front end data multiplexer module 8 existing coaxial line 9 in user family is connected with three terminal data multiplexers 10, and front end data multiplexer 8 and terminating multiplexer 10 are one-to-one relationships, terminal data multiplexer 10 low frequency ports are connected with computer 11, high frequency port is connected with CATV set-top-box 12.Like this can be in the situation that not destroying user's wiring, the cost-effective Two-way of realizing computer internet and cable TV.
Below be only concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.
Claims (6)
1. one kind is applicable to the FTTH extension device of the coaxial access of point-to-point, comprise optical receiver module and ONU module, it is characterized in that, it also comprises plurality of front end data multiplexer module and at least one terminal data multiplexer, described optical receiver module signal output part is connected with the high frequency input terminal of described plurality of front end data multiplexer module, described ONU module by signal output is connected with the low frequency input terminal of described plurality of front end data multiplexer module, described front end data multiplexer module signal output part is connected with described terminal data multiplexer input through coaxial line, wherein, described terminal data multiplexer low frequency port is connected with computer, for ether data-signal is transferred to computer, high frequency port is connected with CATV set-top-box, be used for Cable TV Signal Transmission to CATV set-top-box.
2. the FTTH extension device that is applicable to the coaxial access of point-to-point according to claim 1, is characterized in that, described optical receiver module signal output part is connected with the high frequency input terminal of described plurality of front end data multiplexer module respectively through splitter.
3. the FTTH extension device that is applicable to the coaxial access of point-to-point according to claim 1, is characterized in that, described ONU module by signal output is connected with the low frequency input terminal of described plurality of front end data multiplexer module respectively through splitter.
4. the FTTH extension device that is applicable to the coaxial access of point-to-point according to claim 1, it is characterized in that, this FTTH extension device upward signal that is applicable to the coaxial access of point-to-point transmits and uses identical frequency band with downstream signal, and the upward signal employing TDD time division duplex of communicating by letter with downstream signal.
5. the FTTH extension device that is applicable to the coaxial access of point-to-point according to claim 1, it is characterized in that, this is applicable to FTTH extension device cable TV signal and the broadband ether data-signal frequency division multiplexing of the coaxial access of point-to-point, wherein broadband ether data-signal frequency band takies 5～65MHz, and cable TV signal frequency band takies 65～860MHz.
6. the FTTH extension device that is applicable to the coaxial access of point-to-point according to claim 4, is characterized in that, broadband ether data-signal adopts n-VSB modulation technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878935.0U CN203761398U (en) | 2013-12-27 | 2013-12-27 | FTTH (Fiber To The Home) extension equipment suitable for point-to-point axial access |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878935.0U CN203761398U (en) | 2013-12-27 | 2013-12-27 | FTTH (Fiber To The Home) extension equipment suitable for point-to-point axial access |
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| Publication Number | Publication Date |
|---|---|
| CN203761398U true CN203761398U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878935.0U Expired - Fee Related CN203761398U (en) | 2013-12-27 | 2013-12-27 | FTTH (Fiber To The Home) extension equipment suitable for point-to-point axial access |
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| CN (1) | CN203761398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578158A (en) * | 2016-02-29 | 2016-05-11 | 四川九洲智能装备有限公司 | Integrated cascadable optical fiber tuner module |
-
2013
- 2013-12-27 CN CN201320878935.0U patent/CN203761398U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578158A (en) * | 2016-02-29 | 2016-05-11 | 四川九洲智能装备有限公司 | Integrated cascadable optical fiber tuner module |
| CN105578158B (en) * | 2016-02-29 | 2018-06-08 | 四川九洲智能装备有限公司 | A kind of integration can cascade optical fiber reception tuner module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Haixiong Inventor after: Jiang Xiaobing Inventor after: Wang Bin Inventor after: Liang Guoping Inventor after: Zhang Bin Inventor after: Li Li Inventor after: Li Zhe Inventor after: Qin Xingjian Inventor after: Wei Muxin Inventor after: Huang Gaoxuan Inventor before: Chen Haixiong Inventor before: Jiang Xiaobing Inventor before: Liang Guoping Inventor before: Wang Bin Inventor before: Zhang Bin Inventor before: Li Li Inventor before: Li Zhe Inventor before: Qin Xingjian Inventor before: Wei Muxin Inventor before: Huang Gaoxuan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN HAIXIONG LIANG GUOPING WANG BIN ZHANG BIN LI LI LI ZHE QIN XINGJIAN WEI MUXIN HUANG GAOXUAN JIANG XIAOBING TO: CHEN HAIXIONG WANG BIN LIANG GUOPING ZHANG BIN LI LI LI ZHE QIN XINGJIAN WEI MUXIN HUANG GAOXUAN JIANG XIAOBING |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20161227 |