CN102685464A - Optical workstation of cable television system - Google Patents
Optical workstation of cable television system Download PDFInfo
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- CN102685464A CN102685464A CN2012100945365A CN201210094536A CN102685464A CN 102685464 A CN102685464 A CN 102685464A CN 2012100945365 A CN2012100945365 A CN 2012100945365A CN 201210094536 A CN201210094536 A CN 201210094536A CN 102685464 A CN102685464 A CN 102685464A
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Abstract
The invention discloses an optical workstation of a cable television system. The optical workstation comprises a cable television (CATV) optical receiving unit, an Ethernet passive optical network (EPON) optical transmission unit and an Ethernet over coax (EOC) modulation head end unit which are integrally arranged in a machine body, wherein optical signals are accessed into the input end of the CATV optical receiving unit, and radio-frequency signals are transmitted to the EOC modulation head end unit through the output end of the CATV optical receiving unit. The EPON optical transmission unit comprises an optical fiber network unit which transmits high-speed data signals to the EOC modulation head end unit. The EOC modulation head end unit modulates the high-speed data signals to a low-frequency radio frequency channel, and the high-speed data signals are combined with the radio-frequency signals. By aid of the mode, the CATV optical receiving technology, the EPON optical transmission technology and the EOC modulation technology are combined into the same cable television system workstation, unified network management is adopted, whole process monitoring is conducted, the functions of the optical workstation of the cable television system are added, and the optical workstation of the cable television system is simplified in structure, reduced in cost, convenient to use, safe and reliable.
Description
Technical field
The present invention relates to cable television system optical transmission device field, particularly relate to a kind of cable television system optical workstation.
Background technology
Optical workstation is meant the TV signal of major network and converts light signal into radiofrequency signal through after the Optical Fiber Transmission, is assigned to then in the net and goes.
Traditional CATV broadcast allocation net, the transformation of the hybrid network (being hfc plant) that combines with optical fiber and coaxial cable, to the two-way interactive net development of communication formula, fiber optic network and passive cable distribution network will be the dominant patterns of hfc plant framework.
The target of hfc plant becomes an ability provides multiple information service service for this area (city) broadband this communications platform of many matchmakers exactly; See to have tangible characteristics from present hfc plant developing state: optical fiber progressively extends to the user; The service radius of light contact is more and more littler; Two-way user increases gradually, and the application of RF amplifier is fewer and feweri, and the later network reliability of light contact is greatly improved.
Along with the raising of user to quality of service requirement, the light contact is the passive distribution network the most at last, does not promptly adopt the RF amplifier, only by optical receiving device high level signal is provided, and covers node user on every side.Common optical receiver can't be competent at the high request as light contact receiving equipment again.
In the prior art, have the EPON optical transport technology is combined with the EOC modulation technique, constitute the two-in-one local side all-in-one of optical-fiber network, also have CATV light acceptance technology and EPON optical transport technology are combined, constitute light-receiving dual-purpose all-in-one.Light-receiving dual-purpose all-in-one is used for light-receiving, receive the back through optical transport technology output, and the two-in-one local side all-in-one of optical-fiber network is bearer network and output with signal data modulation becoming collection data, video, voice one, satisfies the demand of radio and television users.When cable television system was installed, both were the equipment that needn't lack, but both are individual for independently, need Installation and Debugging one by one, and installation period is long, inefficiency, and equipment takes up space bigger.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of cable television system optical workstation, can above-mentioned three kinds of technology be combined in the equipment, and designs simplification, reliable, easy to use.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of cable television system optical workstation is provided; Comprise: body, CATV light receiving unit, EPON optical transmission unit, EOC modulation local side unit, said CATV light receiving unit, EPON optical transmission unit and EOC modulation local side unit one are located in the said body, and said CATV light receiving unit input is through the optical fiber incoming light signal; Said CATV light receiving unit converts light signal into radiofrequency signal; Through said CATV light receiving unit output said radio signal transmission is modulated the local side unit to said EOC, said EPON optical transmission unit comprises optical network unit, and said optical network unit is through Ethernet transmitting high speed data signal; Said high speed data signal transmission to EOC modulation local side unit; Said EOC modulation local side unit is modulated to high-speed data signal on the low frequency radio frequency passage, and combines with said radiofrequency signal, forms the comprehensive bearer network of the multiple signal of transmission set.
In preferred embodiment of the present invention, the radiofrequency signal of said CATV light receiving unit output output is the downlink radio-frequency signal of 47-862MHz.
In preferred embodiment of the present invention, the power of said light signal is-7 ~+2dBm.
In preferred embodiment of the present invention, said body comprises working power, anti-thunderbolt power supply, and said working power voltage scope is AC30 ~ 260V.
In preferred embodiment of the present invention, said comprehensive bearer network comprises high-speed data signal, vision signal and voice signal.
In preferred embodiment of the present invention, said EOC modulation local side unit transmits with a plurality of EOC modulation terminals unit and is connected, and exports the signal of said comprehensive bearer network to user side through said EOC modulation terminal.
In preferred embodiment of the present invention, said body also comprises a network management unit, and said network management unit is connected with said CATV light receiving unit, EPON optical transmission unit and EOC modulation local side unit respectively.
In preferred embodiment of the present invention, said optical network unit is provided with more than or equal to four ether ports, and said ether port is supported 10/100/1000Mbps.
In preferred embodiment of the present invention, said EOC modulation local side also comprises duplexer in the unit.
In preferred embodiment of the present invention, said body is equipped with a signal lamp outward, and said signal lamp is connected with said working power, said CATV light receiving unit, EPON optical transmission unit and EOC modulation local side unit respectively.
The invention has the beneficial effects as follows: cable television system optical workstation of the present invention is combined in CATV light-receiving technology, EPON optical transport technology, EOC modulation technique in the cable television system optical workstation; Adopt united net management, carry out the full name monitoring, increased the function of cable television system optical workstation; Simplified structure; Reduced cost, easy to use, safe and reliable.
Description of drawings
Fig. 1 is the structural representation of cable television system optical workstation one preferred embodiment of the present invention;
The mark of each parts is following in the accompanying drawing: 1, CATV light receiving unit, 2, the EPON optical transmission unit, 3, EOC modulation local side unit.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the embodiment of the invention comprises:
A kind of cable television system optical workstation; Comprise: body, CATV light receiving unit 1, EPON optical transmission unit 2, EOC modulation local side unit 3, said CATV light receiving unit 1, EPON optical transmission unit 2 and EOC modulation local side unit 3 one are located in the said body.
Said CATV light receiving unit 1 input is through the optical fiber incoming light signal; Said CATV light receiving unit 1 converts light signal into radiofrequency signal; Through said CATV light receiving unit 1 output said radio signal transmission is modulated local side unit 3 to said EOC, said EPON optical transmission unit 2 comprises optical network unit, and said optical network unit is through Ethernet transmitting high speed data signal; Said high speed data signal transmission to EOC modulation local side unit 3; Said EOC modulation local side unit 3 is modulated to high-speed data signal on the low frequency radio frequency passage, and combines with said radiofrequency signal, forms the comprehensive bearer network of the multiple signal of transmission set.
The CATV optical receiver is through the optical fiber receiving optical signals, and the power of said light signal is-7 ~+2dBm.Light signal converts the radio frequency model into, and through said CATV light receiving unit 1 output output, this radiofrequency signal is the downlink radio-frequency signal of 47-862MHz.
In EOC modulation local side unit 3, radiofrequency signal is combined with high-speed data signal, formed the comprehensive bearer network of three kinds of transmission that integrate high-speed data, video, voice.Satisfy the demand of television network broadcast bidirectional rebuilding, strengthened the function of cable television system optical workstation.
Said body comprises working power, anti-thunderbolt power supply, and said working power voltage scope is AC30 ~ 260V.Working power comprises low pressure feedback electricity, and voltage range is 30-65V, and mains-supplied, voltage range are 165-260V.When anti-thunderbolt power supply guarantees that work station is worked in the open air, avoid being influenced normal operation by thunderbolt.
Said EOC modulation local side unit 3 transmits with a plurality of EOC modulation terminals unit and is connected, and exports the signal of said comprehensive bearer network to user side through said EOC modulation terminal.EOC modulation local side unit 3 is selected the local side apparatus of state-of-the-art technology for use, can support 506 EOC terminals, supports remote network management, is provided with and manages QOS, encryption, statistics, state information searching etc. through modes such as WEB, SNMP, TELNET.For convenient radiofrequency signal combines with high-speed data signal, in said EOC modulation local side unit 3, also comprise duplexer.
Said body also comprises a network management unit, and said network management unit is connected with said CATV light receiving unit 1, EPON optical transmission unit 2 and EOC modulation local side unit 3 respectively.United net management is realized in three unit, complete monitoring, easy to use, safe and reliable.
Said optical network unit is provided with more than or equal to four ether ports, and said ether port is supported 10/100/1000Mbps.Have characteristics such as carrier class can move, can manage, easy care.
Said body is equipped with a signal lamp outward, and said signal lamp is connected with said working power, said CATV light receiving unit 1, EPON optical transmission unit 2 and EOC modulation local side unit 3 respectively.
External signal lamp after connecting working power, the blue lamp flicker, expression localpower part is in proper working order.
Light signal inserts in the CATV light receiving unit 1, and luminous power shows corresponding power, and external signal lamp blue lamp is long bright, and expression photoelectricity part is operate as normal.
Optical network unit high speed data in the EPON optical transmission unit 2 insert, and external signal lamp green light is long bright, the registered success of expression optical network unit, and the unregistered success of optical network unit is explained in the green light flicker.
Optical network unit is connected with EOC modulation local side, external signal lamp green light flicker, the expression network signal connects.
Cable television system optical workstation of the present invention is combined in CATV light-receiving technology, EPON optical transport technology, EOC modulation technique in the optical workstation; Adopt united net management, carry out the full name monitoring, increased the function of cable television system optical workstation; Simplified structure; Reduced cost, easy to use, safe and reliable.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. cable television system optical workstation; It is characterized in that; Comprise: body, CATV light receiving unit, EPON optical transmission unit, EOC modulation local side unit, said CATV light receiving unit, EPON optical transmission unit and EOC modulation local side unit one are located in the said body, and said CATV light receiving unit input is through the optical fiber incoming light signal; Said CATV light receiving unit converts light signal into radiofrequency signal; Through said CATV light receiving unit output said radio signal transmission is modulated the local side unit to said EOC, said EPON optical transmission unit comprises optical network unit, and said optical network unit is through Ethernet transmitting high speed data signal; Said high speed data signal transmission to EOC modulation local side unit; Said EOC modulation local side unit is modulated to high-speed data signal on the low frequency radio frequency passage, and combines with said radiofrequency signal, forms the comprehensive bearer network of the multiple signal of transmission set.
2. cable television system optical workstation according to claim 1 is characterized in that, the radiofrequency signal of said CATV light receiving unit output output is the downlink radio-frequency signal of 47-862MHz.
3. cable television system optical workstation according to claim 1 is characterized in that, the power of said light signal is-7 ~+2dBm.
4. cable television system optical workstation according to claim 1 is characterized in that, said body comprises working power, anti-thunderbolt power supply, and said working power voltage scope is AC30 ~ 260V.
5. cable television system optical workstation according to claim 1 is characterized in that, said comprehensive bearer network comprises high-speed data signal, vision signal and voice signal.
6. cable television system optical workstation according to claim 1 is characterized in that, said EOC modulation local side unit transmits with a plurality of EOC modulation terminals unit and is connected, and exports the signal of said comprehensive bearer network to user side through said EOC modulation terminal.
7. cable television system optical workstation according to claim 1 is characterized in that said body also comprises a network management unit, and said network management unit is connected with said CATV light receiving unit, EPON optical transmission unit and EOC modulation local side unit respectively.
8. cable television system optical workstation according to claim 1 is characterized in that, said optical network unit is provided with more than or equal to four ether ports, and said ether port is supported 10/100/1000Mbps.
9. cable television system optical workstation according to claim 1 is characterized in that, said EOC modulation local side also comprises duplexer in the unit.
10. cable television system optical workstation according to claim 4; It is characterized in that; Said body is equipped with a signal lamp outward, and said signal lamp is connected with said working power, said CATV light receiving unit, EPON optical transmission unit and EOC modulation local side unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100945365A CN102685464A (en) | 2012-04-01 | 2012-04-01 | Optical workstation of cable television system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100945365A CN102685464A (en) | 2012-04-01 | 2012-04-01 | Optical workstation of cable television system |
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| CN102685464A true CN102685464A (en) | 2012-09-19 |
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| CN2012100945365A Pending CN102685464A (en) | 2012-04-01 | 2012-04-01 | Optical workstation of cable television system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320639A (en) * | 2014-10-30 | 2015-01-28 | 成都康特电子高新科技有限责任公司 | Optical work station based on radio and television network system |
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| CN101345589A (en) * | 2008-08-25 | 2009-01-14 | 杭州华三通信技术有限公司 | Apparatus and method for integrating passive optical network and coaxial Ethernet component |
| CN101944955A (en) * | 2010-09-20 | 2011-01-12 | 青岛有线电视网络中心 | Converged network transmission system carrying data and video signals |
| CN101951352A (en) * | 2010-10-15 | 2011-01-19 | 江苏烨鑫电子有限公司 | Cable television integrated gateway |
| CN201928398U (en) * | 2010-12-14 | 2011-08-10 | 罗正华 | FEoC access system for two-way transformation of broadcasting and television network |
| CN102387055A (en) * | 2011-10-19 | 2012-03-21 | 烽火通信科技股份有限公司 | EPON (Ethernet passive optical network) optical network unit supporting CATV (cable television) optical access and fusing EoC (Ethernet over coaxial cable) functions |
| CN202551239U (en) * | 2012-04-01 | 2012-11-21 | 江苏海虹电子有限公司 | Optical workstation for cable television system |
-
2012
- 2012-04-01 CN CN2012100945365A patent/CN102685464A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345589A (en) * | 2008-08-25 | 2009-01-14 | 杭州华三通信技术有限公司 | Apparatus and method for integrating passive optical network and coaxial Ethernet component |
| CN101944955A (en) * | 2010-09-20 | 2011-01-12 | 青岛有线电视网络中心 | Converged network transmission system carrying data and video signals |
| CN101951352A (en) * | 2010-10-15 | 2011-01-19 | 江苏烨鑫电子有限公司 | Cable television integrated gateway |
| CN201928398U (en) * | 2010-12-14 | 2011-08-10 | 罗正华 | FEoC access system for two-way transformation of broadcasting and television network |
| CN102387055A (en) * | 2011-10-19 | 2012-03-21 | 烽火通信科技股份有限公司 | EPON (Ethernet passive optical network) optical network unit supporting CATV (cable television) optical access and fusing EoC (Ethernet over coaxial cable) functions |
| CN202551239U (en) * | 2012-04-01 | 2012-11-21 | 江苏海虹电子有限公司 | Optical workstation for cable television system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320639A (en) * | 2014-10-30 | 2015-01-28 | 成都康特电子高新科技有限责任公司 | Optical work station based on radio and television network system |
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Application publication date: 20120919 |