CN201878169U - Switch for switching between twisted pair signals and coaxial signals - Google Patents
Switch for switching between twisted pair signals and coaxial signals Download PDFInfo
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- CN201878169U CN201878169U CN2010206297771U CN201020629777U CN201878169U CN 201878169 U CN201878169 U CN 201878169U CN 2010206297771 U CN2010206297771 U CN 2010206297771U CN 201020629777 U CN201020629777 U CN 201020629777U CN 201878169 U CN201878169 U CN 201878169U
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- loading coil
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Abstract
The utility model discloses a switch for switching between twisted pair signals and coaxial signals, and relates to the technical field of data switches. The switch solves the technical problem of building a home local area network by using coaxial cables. The switch comprises a data exchange chip and a plurality of impedance conversion network transformers, wherein the upper connection port of the data exchange chip is connected with an RJ45 network connector, and the impedance conversion network transformers are divided into two groups, namely a first transformer group and a second transformer group; and the four-wire balance signal interface of each impedance conversion network transformer in the first transformer group is connected with each lower connection port of the data exchange chip, and the two-wire coaxial signal interface of each impedance conversion network transformer in the first transformer group is connected with a coaxial cable connector. The switch provided by the utility model can build the home local area network by using the indoor original cable television coaxial cables.
Description
Technical field
The utility model relates to the exchanges data machine technology, particularly relates to a kind of technology that is used for the switch changed between twisted-pair feeder signal and the coaxial signal.
Background technology
At present, it is more and more general to have the phenomenon of multiple computers in the one family.But, the broadband ethernet signal all has only an output port when inserting single household family, will realize in single household family that multiple computers is surfed the Net simultaneously must set up family lan, because the input/output signal of existing network switch all transmits by twisted-pair feeder, therefore utilizing the existing network switch to set up family lan need be at many netting twine of indoor laying, and this can influence the attractive in appearance of indoor original decoration.
The utility model content
At the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides a kind of switch of changing between twisted-pair feeder signal and the coaxial signal of being used for that can utilize indoor original cable tv coax to set up family lan.
In order to solve the problems of the technologies described above, a kind of switch of changing between twisted-pair feeder signal and the coaxial signal of being used for provided by the utility model, comprise the exchanges data chip that is used for network data is exchanged processing, described exchanges data chip is provided with a upper united mouth and a plurality of second line of a couplet mouth, its upper united mouth is connected to a RJ45 type Network connecting member, it is characterized in that: also comprise a plurality of impedance inverting network transformers;
Described each impedance inverting network transformer is divided into two groups, is respectively first transformer group and second transformer group;
Each impedance inverting network transformer is equipped with one or two line coaxial signal interface, one or four line balance signaling interfaces, four line balance signaling interfaces of each the impedance inverting network transformer in first transformer group are connected respectively to each second line of a couplet mouth of exchanges data chip, and two line coaxial signal interfaces of each the impedance inverting network transformer in first transformer group respectively connect a coaxial cable connector.
Further, described impedance inverting network transformer comprises that one or four pin connectors, one or two pin connector, send transformer, a receiving transformer, a loading coil;
Described loading coil has three exits, is respectively first exit, second exit, three terminal, and its first exit and second exit are drawn from the two ends of loading coil, and its three terminal is drawn from the centre of loading coil;
The winding two ends, former limit of the winding two ends, former limit of described transmission transformer and receiving transformer are connected to four pins of four pin connectors respectively, constitute four line balance signaling interfaces of impedance inverting network transformer;
The secondary winding one end ground connection of described transmission transformer, the other end connects first exit of loading coil, an end ground connection of the secondary winding of described receiving transformer, the other end connects second exit of loading coil;
First exit and second exit of described loading coil are connected in series through a resistance; A pin of described two pin connectors connects the three terminal of loading coil through an electric capacity, and its another root pin ground connection constitutes two line coaxial signal interfaces of impedance inverting network transformer.
The utility model provides is used for the switch changed between twisted-pair feeder signal and the coaxial signal, by the exchanges data chip can be multichannel output with the broadband ethernet conversion of signals of one tunnel input, and the four line balance conversion of signals that will need to transmit by twisted-pair feeder by the impedance inverting network transformer are can be by two line unbalanced signals of coaxial cable transmission, therefore can utilize indoor original cable tv coax to set up family lan, need not can not influence the attractive in appearance of indoor original decoration at indoor laying netting twine.
Description of drawings
Fig. 1 is the structured flowchart that is used for the switch changed between twisted-pair feeder signal and the coaxial signal of the utility model embodiment;
Fig. 2 is the circuit diagram of the impedance inverting network transformer that is used for the switch changed between twisted-pair feeder signal and the coaxial signal of the utility model embodiment.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection range of the present utility model in.
As shown in Figure 1, the utility model embodiment is provided a kind of switch of changing between twisted-pair feeder signal and the coaxial signal of being used for, comprise the exchanges data chip that is used for network data is exchanged processing, described exchanges data chip is provided with a upper united mouth and a plurality of second line of a couplet mouth, its upper united mouth is connected to a RJ45 type Network connecting member, it is characterized in that: also comprise a plurality of impedance inverting network transformers;
Described each impedance inverting network transformer is divided into two groups, is respectively first transformer group and second transformer group;
Each impedance inverting network transformer is equipped with one or two line coaxial signal interface, one or four line balance signaling interfaces, four line balance signaling interfaces of each the impedance inverting network transformer in first transformer group are connected respectively to each second line of a couplet mouth of exchanges data chip, and two line coaxial signal interfaces of each the impedance inverting network transformer in first transformer group respectively connect a coaxial cable connector;
As shown in Figure 2, among the utility model embodiment, described impedance inverting network transformer comprises that one or four pin connector J1, one or two pin connector J2, one send transformer B2, a receiving transformer B3, a loading coil B1;
Described loading coil B1 has three exits, is respectively first exit, second exit, three terminal, and its first exit and second exit are drawn from the two ends of loading coil B1, and its three terminal is drawn from the centre of loading coil B1;
The winding two ends, former limit of the winding two ends, former limit of described transmission transformer B2 and receiving transformer B3 are connected to four pins of four pin connector J1 respectively, constitute four line balance signaling interfaces of impedance inverting network transformer;
The secondary winding one end ground connection of described transmission transformer B2, the other end connects first exit of loading coil B1, an end ground connection of the secondary winding of described receiving transformer B3, the other end connects second exit of loading coil B1;
First exit and second exit of described loading coil B1 are connected in series through a resistance R, are used for the received signal (RX) of balance Ethernet and send signal (TX);
The pin of described two pin connector J2 connects the three terminal of loading coil B1 through a capacitor C, and its another root pin ground connection constitutes two line coaxial signal interfaces of impedance inverting network transformer.
Among the utility model embodiment, the model of described exchanges data chip is the network exchanging chip of RTL8309.
When the utility model embodiment uses, the broadband ethernet signal is connected to the RJ45 type Network connecting member that connects data exchange chip upper united mouth by twisted-pair feeder, one end of indoor original each cable tv coax is connected respectively to each coaxial cable connector of the two line coaxial signal interfaces that connect each the impedance inverting network transformer in first transformer group, the other end of indoor original each cable tv coax connects two line coaxial signal interfaces of each the impedance inverting network transformer in second transformer group respectively, and each user terminal computer is connected to four line balance signaling interfaces of each the impedance inverting network transformer in second transformer group by twisted-pair feeder.
The operation principle of the utility model embodiment is as follows:
The broadband ethernet signal inserts the exchanges data chip by the upper united mouth of exchanges data chip, the exchanges data chip carries out the network data exchange to the broadband ethernet signal that inserts and handles the back from each second line of a couplet mouth output, the four line balance conversion of signals that each impedance inverting network transformer in first transformer group of each second line of a couplet mouth of connection data exchange chip is exported the exchanges data chip are to export from two line coaxial signal interfaces behind the two line coaxial signals, and transferring to each impedance inverting network transformer in second transformer group by coaxial cable, each the impedance inverting network transformer in second transformer group passes to user terminal computer after again two line coaxial signals being converted to four line balance signals.
Claims (2)
1. one kind is used for the switch changed between twisted-pair feeder signal and the coaxial signal, comprise the exchanges data chip that is used for network data is exchanged processing, described exchanges data chip is provided with a upper united mouth and a plurality of second line of a couplet mouth, its upper united mouth is connected to a RJ45 type Network connecting member, it is characterized in that: also comprise a plurality of impedance inverting network transformers;
Described each impedance inverting network transformer is divided into two groups, is respectively first transformer group and second transformer group;
Each impedance inverting network transformer is equipped with one or two line coaxial signal interface, one or four line balance signaling interfaces, four line balance signaling interfaces of each the impedance inverting network transformer in first transformer group are connected respectively to each second line of a couplet mouth of exchanges data chip, and two line coaxial signal interfaces of each the impedance inverting network transformer in first transformer group respectively connect a coaxial cable connector.
2. the switch changed between twisted-pair feeder signal and the coaxial signal of being used for according to claim 1 is characterized in that: described impedance inverting network transformer comprises that one or four pin connectors, one or two pin connector, send transformer, a receiving transformer, a loading coil;
Described loading coil has three exits, is respectively first exit, second exit, three terminal, and its first exit and second exit are drawn from the two ends of loading coil, and its three terminal is drawn from the centre of loading coil;
The winding two ends, former limit of the winding two ends, former limit of described transmission transformer and receiving transformer are connected to four pins of four pin connectors respectively, constitute four line balance signaling interfaces of impedance inverting network transformer;
The secondary winding one end ground connection of described transmission transformer, the other end connects first exit of loading coil, an end ground connection of the secondary winding of described receiving transformer, the other end connects second exit of loading coil;
First exit and second exit of described loading coil are connected in series through a resistance; A pin of described two pin connectors connects the three terminal of loading coil through an electric capacity, and its another root pin ground connection constitutes two line coaxial signal interfaces of impedance inverting network transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206297771U CN201878169U (en) | 2010-11-29 | 2010-11-29 | Switch for switching between twisted pair signals and coaxial signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206297771U CN201878169U (en) | 2010-11-29 | 2010-11-29 | Switch for switching between twisted pair signals and coaxial signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201878169U true CN201878169U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206297771U Expired - Fee Related CN201878169U (en) | 2010-11-29 | 2010-11-29 | Switch for switching between twisted pair signals and coaxial signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201878169U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880610A (en) * | 2018-07-19 | 2018-11-23 | 深圳振华富电子有限公司 | Low-loss network information transfer device |
| CN110620963A (en) * | 2019-09-27 | 2019-12-27 | 深圳市共进电子股份有限公司 | Adaptive connector |
-
2010
- 2010-11-29 CN CN2010206297771U patent/CN201878169U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880610A (en) * | 2018-07-19 | 2018-11-23 | 深圳振华富电子有限公司 | Low-loss network information transfer device |
| CN108880610B (en) * | 2018-07-19 | 2023-11-10 | 深圳振华富电子有限公司 | Low-loss network information transmission device |
| CN110620963A (en) * | 2019-09-27 | 2019-12-27 | 深圳市共进电子股份有限公司 | Adaptive connector |
| CN110620963B (en) * | 2019-09-27 | 2022-04-15 | 深圳市共进电子股份有限公司 | Adaptive connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131129 |