CN2891492Y - Converter that converts four ways of Ethernet signals into two ways of transmission signals - Google Patents
Converter that converts four ways of Ethernet signals into two ways of transmission signals Download PDFInfo
- Publication number
- CN2891492Y CN2891492Y CN 200620039670 CN200620039670U CN2891492Y CN 2891492 Y CN2891492 Y CN 2891492Y CN 200620039670 CN200620039670 CN 200620039670 CN 200620039670 U CN200620039670 U CN 200620039670U CN 2891492 Y CN2891492 Y CN 2891492Y
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- transformer
- coil winding
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- way
- signals
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- Expired - Lifetime
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Disclosed is a transfer device which translates a four-way ether signal into a two-way transmission signal, comprising a transformer A and a transformer B, wherein a coil winding A1 provided on one side of the transformer A and a coil winding B2 provided on one side of the transformer B are respectively connected with a four-way input output interface, a midpoint tap of a coil winding which is arranged on the other side of the transformer A is connected with one end of a coil winding B1 of the transformer B, and the other end of the coil winding B1 is connected to earth, the other end of the coil winding A3 of the transformer A is connected with a matched resistance R, the other end of the matched resistance R is connected with one way input output interface, the other end of a coil winding A2 of the transformer A is connected with one way input output interface. The utility model can translate two descending data signals which is provided in ether-net 5 lines into one descending radio-frequency signal which is transmitted in a coaxial cable, and transmits one up-bound radio-frequency signal de-multiplex which is transmitted from the coaxial cable into two up-bound data signals in the 5 lines, and the problems of the prior ether-net signal encounters in the coaxial cable transmission can be resolved, meanwhile line impedance matching can be kept.
Description
Technical field
The utility model relates to a kind of chromacoder, particularly a kind of conversion equipment that four road ether signals is converted into the two-way transmission signals.
Background technology
Along with popularizing and the development of cable TV technology of China's cable television network, the structure of domestic cable TV distribution network also changes thereupon.Traditional finger assignments type dendroid network is substituted by the star network that is made of the cable TV signal hub just gradually.The topological structure of this novel distribution network is identical with Ethernet, thereby makes cable TV signal and the transmission of Ethernet conllinear become possibility.
The principle that the coaxial cable altogether of Ethernet inserts is: in the cable TV network, the spectral range of broadcasting/TV signal is 47/750MHz, and transmission feed characteristic is a unbalanced.The baseband I P signal of 10Mbps Ethernet accounts for the about 45MHz of frequency range, and they are covered with diverse frequency range.Thereby, can in same medium (coaxial cable), transmit this two kinds of dissimilar signals simultaneously fully, insert with the common cable of realizing radio and television and high-speed data service.
And the transmission of ethernet signal is at present transmitted by 5 class lines, wherein be divided into two-way upward signal and two-way downstream signal, therefore in the process that cable inserts altogether, at first the technical problem that will solve is how the multiplexing one-tenth one tunnel descending radiofrequency signal of data-signal that two-way is up is transmitted in coaxial cable, demultiplexing into the up data-signal of two-way with the radiofrequency signal of going on the way that will transmit in the coaxial cable transmits at 5 class lines, finish coaxial cable and balance to the conversion between the line by the balance/imbalance translation circuit, promptly finish the 2/4 line conversion of data channel full duplex.
The utility model content
The purpose of this utility model provides a kind of being applied to and in cable TV signal and the Ethernet conllinear coaxial transmission process four road ethernet signals is converted into the conversion equipment that the two-way transmission signals keeps impedance matching simultaneously.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of conversion equipment that four road ether signals is converted into the two-way transmission signals, comprise transformer A and transformer B, the lateral coil winding B2 of the lateral coil winding A1 of transformer A and transformer B connects four road input/output interfaces respectively, the centre tap of the opposite side coil windings of transformer A links to each other with the end of the coil windings B1 of transformer B, the other end ground connection of coil windings B1; Another termination one build-out resistor R of the coil windings A3 of transformer A, another termination one road input/output interface of build-out resistor R, another termination one road input/output interface of the coil windings A2 of transformer A.
After adopting technique scheme, the utility model can be easily becomes the two-way transmission signals with four tunnel conversion of signals of Ethernet, being about to the descending data-signal of two-way in the Ethernet 5 class lines is converted to one tunnel descending radiofrequency signal and transmits in coaxial cable, demultiplex into the up data-signal of two-way with the radiofrequency signal of going on the way that will transmit in the coaxial cable and transmit, solved existing ethernet signal and in coaxial cable, transmitted the problem that runs at 5 class lines.The utlity model has simple in structure, working stability, the advantage that transmission quality is good.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural principle schematic diagram of the present utility model.
Embodiment
Referring to accompanying drawing, a kind of conversion equipment that four road ether signals is converted into the two-way transmission signals, comprise transformer A and transformer B, the lateral coil winding B2 of the lateral coil winding A1 of transformer A and transformer B connects four road input/output interfaces respectively, the centre tap of the opposite side coil windings of transformer A links to each other with the end of the coil windings B1 of transformer B, the other end ground connection of coil windings B1; Another termination one build-out resistor R of the coil windings A3 of transformer A, another termination one road input/output interface of build-out resistor R, another termination one road input/output interface of the coil windings A2 of transformer A.
Certainly,, do not spend performing creative labour, on the basis of the foregoing description, can do multiple variation, can realize the purpose of this utility model equally for one of ordinary skill in the art.But this variation obviously should be in the protection range of claims of the present utility model.
Claims (1)
1, a kind of conversion equipment that four road ether signals is converted into the two-way transmission signals, it is characterized in that, comprise transformer A and transformer B, the lateral coil winding B2 of the lateral coil winding A1 of transformer A and transformer B connects four road input/output interfaces respectively, the centre tap of the opposite side coil windings of transformer A links to each other with the end of the coil windings B1 of transformer B, the other end ground connection of coil windings B1; Another termination one build-out resistor R of the coil windings A3 of transformer A, another termination one road input/output interface of build-out resistor R, another termination one road input/output interface of the coil windings A2 of transformer A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039670 CN2891492Y (en) | 2006-02-22 | 2006-02-22 | Converter that converts four ways of Ethernet signals into two ways of transmission signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039670 CN2891492Y (en) | 2006-02-22 | 2006-02-22 | Converter that converts four ways of Ethernet signals into two ways of transmission signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891492Y true CN2891492Y (en) | 2007-04-18 |
Family
ID=38022152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039670 Expired - Lifetime CN2891492Y (en) | 2006-02-22 | 2006-02-22 | Converter that converts four ways of Ethernet signals into two ways of transmission signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891492Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457417A (en) * | 2010-10-27 | 2012-05-16 | 上海澳润通信技术有限公司 | Coaxial network transforming device for 100M Ethernet |
| CN105657193A (en) * | 2014-11-14 | 2016-06-08 | 周美杉 | Sidetone elimination technology based two-line Ethernet communication interface circuit |
-
2006
- 2006-02-22 CN CN 200620039670 patent/CN2891492Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457417A (en) * | 2010-10-27 | 2012-05-16 | 上海澳润通信技术有限公司 | Coaxial network transforming device for 100M Ethernet |
| CN105657193A (en) * | 2014-11-14 | 2016-06-08 | 周美杉 | Sidetone elimination technology based two-line Ethernet communication interface circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI ONLAN INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: AOLAN COMMUNICATION TECH CO., LTD., SHANGHAI |
|
| CP03 | Change of name, title or address |
Address after: 201700, No. 7888, Pine Road, Qingpu District, Shanghai, 101-B21 Patentee after: Online Technology Co., Ltd. Address before: 201700 No. 10 Daxing Road, Qingpu District, Shanghai Patentee before: Shanghai Onlan Communication Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070418 |
|
| EXPY | Termination of patent right or utility model |