CN206195787U - C virtual headend equipment of DOCSIS based on wavelength devision multiplex - Google Patents
C virtual headend equipment of DOCSIS based on wavelength devision multiplex Download PDFInfo
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- CN206195787U CN206195787U CN201621332527.5U CN201621332527U CN206195787U CN 206195787 U CN206195787 U CN 206195787U CN 201621332527 U CN201621332527 U CN 201621332527U CN 206195787 U CN206195787 U CN 206195787U
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- docsis
- module
- wavelength
- division multiplex
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Abstract
The utility model discloses a C virtual headend equipment of DOCSIS based on wavelength devision multiplex, go upward optical receiver module, C including what connect gradually DOCSIS conversion module, radio frequency hybrid module, down optical transmission module and WDM module. The utility model discloses a passive WDM module is mixed, original 1550nm live broadcast signal without photoelectricity - - - and the lightning switch processing directly down passes. Do you avoid C the influence to the 1550nm live broadcast signal transmission that DOCSIS equipment trouble brought. The mode of on the other hand borrowed light output replaces radio frequency output mode, improves network reliability and suitability.
Description
Technical field
The utility model belongs to technical field of photo communication, virtual more particularly, to a kind of C-DOCSIS based on wavelength-division multiplex
Headend equipment.
Background technology
C-DOCSIS is a kind of coaxial access technology in edge based on the standards of international DOCSIS 3.0, can be backward compatible, symbol
NGB high bandwidths, multiservice requirement are closed, deep optical node deployment, the network condition of residential density high is more adapted to.If using C-
DOCSIS technologies, can not only meet the requirement of high standard specification, realize the development of high bandwidth OTT business, but also can be with simultaneous
Hold the CM terminals that existing market has largely been disposed, in the long run, more agree with the development prospect of China Broadcast ＆ Television bidirectional network reconstruction.
The unidirectional access networks of broadcasting and TV HFC generally use 1550nm signal optical transports.Current commonly used C-DOCSIS local sides
Equipment is that radio frequency exports form, is used as the local side apparatus of broadcasting and TV broadband access network.How C-DOCSIS technology realities is being used
During existing broadcasting and TV bidirectional network reconstruction, the transmission of original 1550nm optical signals is not destroyed, that is, ensure the transmitting of former net live signal, be
The subject matter confronted.
Utility model content
Problem to be solved in the utility model is to provide a kind of C-DOCSIS virtual front-end equipment based on wavelength-division multiplex.
In order to solve the above-mentioned technical problem, the utility model is adopted the following technical scheme that：C- based on wavelength-division multiplex
DOCSIS virtual front-end equipment, including up Optical Receivers, C-DOCSIS modular converters, the radio frequency hybrid guided mode being sequentially connected
Block, descending light emission module and WDM modules；
The up Optical Receivers is realized that uplink optical signal is demodulated into radiofrequency signal and exports and is turned to the C-DOCSIS
Mold changing block；
The C-DOCSIS modular converters complete the conversion of IP signals and the radiofrequency signal；
The radio frequency mixing module is realized being changed for the IPQAM signals of digital television on-demand dilatation and the C-DOCSIS
The mixing of the downstream signal of module；
The descending light emission module realizes the light modulation transmitting of the downlink radio-frequency signal from the radio frequency mixing module
Output；
The WDM modules realize 1550nm live signals and the downlink radio-frequency signal from the descending light emission module
Mixing output.
The C-DOCSIS modular converters regard the DM-C01-R2V2 series modular converters of science and technology using Shanghai cloud.
The radio frequency mixing module uses the ZBM204 mixing modules of Guangdian Science ＆ Technology Co., Ltd., Zhejiang.
The descending light emission module uses the 6001B series lasers of XESTON companies of the U.S..
The WDM modules use the SUN-13/15 series WDM modules of Guilin Guang Long photoelectricity company.
The up Optical Receivers is managed using the OPD-1-2-4-P-SCA types PIN of Chongqing Ou Shengde companies.
The beneficial effects of the utility model：Using radio frequency hybrid technology the downstream broadband signal of C-DOCSIS and for counting
The IPQAM signals of word video on demand dilatation are mixed, then export 1310nm optical signals by descending light emission module, are used
1310nm＆1550nm Wavelength division multiplexing modules (WDM modules) are realized mixing output with 1550nm live signals；Up Optical Receivers
Uplink optical signal is received, radiofrequency signal is converted into and is given C-DOCSIS modular converters；C-DOCSIS modular converters are realized descending, up
The conversion of radiofrequency signal and broadband IP signal.
Mixed by passive WDM modules, original 1550nm live signals without photoelectricity --- electro-optic conversion treatment, directly
It is access to down and passes.Avoid the influence to the transmission of 1550nm live signals that C-DOCSIS equipment faults bring.On the other hand use
The mode of light output substitutes the radio frequency way of output, improves network reliability and applicability.
Brief description of the drawings
Fig. 1 is the C-DOCSIS virtual front-end equipment principle block diagrams that the utility model is based on wavelength-division multiplex
Specific embodiment
As shown in figure 1, the C-DOCSIS virtual front-end equipment based on wavelength-division multiplex, including the up light-receiving being sequentially connected
Module, C-DOCSIS modular converters, radio frequency mixing module, descending light emission module and WDM modules；
The up Optical Receivers is realized that uplink optical signal is demodulated into radiofrequency signal and exports and is turned to the C-DOCSIS
Mold changing block；
The C-DOCSIS modular converters complete the conversion of IP signals and the radiofrequency signal；
The radio frequency mixing module is realized being changed for the IPQAM signals of digital television on-demand dilatation and the C-DOCSIS
The mixing of the downstream signal of module；
The descending light emission module realizes the light modulation transmitting of the downlink radio-frequency signal from the radio frequency mixing module
Output；
The WDM modules realize 1550nm live signals and the downlink radio-frequency signal from the descending light emission module
Mixing output.
Wave division multiplexing WDM (Wavelength Division Multiplexing) is by two or more different wave lengths
Optical carrier (carrying various information) is merged together in transmitting terminal through multiplexer (also known as wave multiplexer, Multiplexer), and
It is coupled to the technology being transmitted in same optical fiber of optical link；In receiving terminal, demultiplexed device (also known as channel-splitting filter or goes
Multiplexer, Demultiplexer) light carrier of various wavelength is separated, then it is for further processing to recover by photoreceiver
Original signal.The technology of this simultaneous transmission in same optical fiber two or numerous different wave length optical signals, referred to as wavelength-division multiplex.
The C-DOCSIS modular converters, the DM-C01-R2V2 series modular converters of science and technology are regarded using Shanghai cloud, complete IP
The conversion of signal and radiofrequency signal, radiofrequency signal includes downlink radio-frequency signal and upstream radio-frequency signal.By General Bureau of Radio, Film and Television's standard, under
Row radio frequency signal frequency bandwidth is generally 87~1000MHz, and upstream radio-frequency signal frequency bandwidth is generally 5~65MHz.
The radio frequency mixing module, using the ZBM204 mixing modules of Guangdian Science ＆ Technology Co., Ltd., Zhejiang, realizes
The mixing of C-DOCSIS downstream signals and the IPQAM signals for digital television on-demand dilatation.
The descending light emission module, using the 6001B series lasers of XESTON companies of the U.S., realize 87~
The light modulation transmitting output of the downlink radio-frequency signal of 1000MHz frequency bandwidths, launch wavelength 1310nm.
The WDM modules, using the SUN-13/15 series WDM modules of Guilin Guang Long photoelectricity company, realize 1310nm and
The wavelength-division multiplex of 1550nm optical signals.
The up Optical Receivers, is managed, in realization using the OPD-1-2-4-P-SCA types PIN of Chongqing Ou Shengde companies
Traveling optical signal is demodulated into the radiofrequency signal of 5~65MHz frequency bandwidths.
Claims (6)
1. the C-DOCSIS virtual front-end equipment of wavelength-division multiplex is based on, it is characterised in that including the up light-receiving being sequentially connected
Module, C-DOCSIS modular converters, radio frequency mixing module, descending light emission module and WDM modules；
The up Optical Receivers realizes that uplink optical signal is demodulated into radiofrequency signal and exports to the C-DOCSIS moduluss of conversion
Block；
The C-DOCSIS modular converters complete the conversion of IP signals and the radiofrequency signal；
The radio frequency mixing module realizes the IPQAM signals and the C-DOCSIS modular converters for digital television on-demand dilatation
Downstream signal mixing；
The descending light emission module realizes the light modulation transmitting output of the downlink radio-frequency signal from the radio frequency mixing module；
The WDM modules realize the mixing of 1550nm live signals and the downlink radio-frequency signal from the descending light emission module
Output.
2. the C-DOCSIS virtual front-end equipment based on wavelength-division multiplex according to claim 1, it is characterised in that the C-
DOCSIS modular converters regard the DM-C01-R2V2 series modular converters of science and technology using Shanghai cloud.
3. the C-DOCSIS virtual front-end equipment based on wavelength-division multiplex according to claim 1, it is characterised in that described to penetrate
Frequency mixing module uses the ZBM204 mixing modules of Guangdian Science ＆ Technology Co., Ltd., Zhejiang.
4. the C-DOCSIS virtual front-end equipment based on wavelength-division multiplex according to claim 1, it is characterised in that under described
Row light emission module uses the 6001B series lasers of XESTON companies of the U.S..
5. the C-DOCSIS virtual front-end equipment based on wavelength-division multiplex according to claim 1, it is characterised in that described
WDM modules use the SUN-13/15 series WDM modules of Guilin Guang Long photoelectricity company.
6. the C-DOCSIS virtual front-end equipment based on wavelength-division multiplex according to claim 1, it is characterised in that on described
Row Optical Receivers is managed using the OPD-1-2-4-P-SCA types PIN of Chongqing Ou Shengde companies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332527.5U CN206195787U (en) | 2016-12-06 | 2016-12-06 | C virtual headend equipment of DOCSIS based on wavelength devision multiplex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332527.5U CN206195787U (en) | 2016-12-06 | 2016-12-06 | C virtual headend equipment of DOCSIS based on wavelength devision multiplex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195787U true CN206195787U (en) | 2017-05-24 |
Family
ID=58723529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621332527.5U Expired - Fee Related CN206195787U (en) | 2016-12-06 | 2016-12-06 | C virtual headend equipment of DOCSIS based on wavelength devision multiplex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206195787U (en) |
-
2016
- 2016-12-06 CN CN201621332527.5U patent/CN206195787U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20170524 Termination date: 20191206 |