CN110620963B - Adaptive connector - Google Patents
Adaptive connector Download PDFInfo
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- CN110620963B CN110620963B CN201910931335.8A CN201910931335A CN110620963B CN 110620963 B CN110620963 B CN 110620963B CN 201910931335 A CN201910931335 A CN 201910931335A CN 110620963 B CN110620963 B CN 110620963B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/028—Subscriber network interface devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/03—Power distribution arrangements
- H04Q1/032—Power distribution arrangements power failure protection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/11—Protection against environment
- H04Q1/116—Protection against environment lightning or EMI protection, e.g. shielding or grounding
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Abstract
The application relates to an adaptive connector, and belongs to the technical field of network communication. The adapter connector includes: network interface, coaxial line interface and matching circuit. The matching circuit includes: the isolation transformer, the both ends of isolation transformer's first coil all with network interface connection, the one end of isolation transformer's second coil with coaxial line interface connection, the other termination of second coil simulation ground, the impedance of first coil side with network line impedance match, the impedance of second coil side with coaxial line impedance match. The matching circuit is used for performing impedance matching on the signal input by the network interface and then outputting the signal to the coaxial line interface, or performing impedance matching on the signal input by the coaxial line interface and then outputting the signal to the network interface. The adaptive connector can realize the signal conversion of two different networks, namely a coaxial network and a network cable network.
Description
Technical Field
The application belongs to the technical field of network communication, and particularly relates to an adaptive connector.
Background
With the development of network technology, coaxial networks (referred to as networks based on coaxial transmission) and network networks (referred to as networks based on network transmission) are very common and are commonly deployed in the environments of homes, shopping malls, and the like. However, the two networks belong to different network systems respectively, and have different wiring requirements, so that direct intercommunication cannot be realized.
Disclosure of Invention
In view of the above, embodiments of the present application provide an adaptive connector to solve the problem that the existing heterogeneous networks cannot be directly connected.
The embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides an adaptive connector, including: the device comprises a network interface, a coaxial line interface and a matching circuit; the network interface is used for connecting a network cable; the coaxial line interface is used for connecting a coaxial line; the matching circuit includes: the two ends of a first coil of the isolation transformer are both connected with the network interface, one end of a second coil of the isolation transformer is connected with the coaxial line interface, the other end of the second coil is connected with an analog ground, the impedance of the first coil side is matched with the impedance of the network line, and the impedance of the second coil side is matched with the impedance of the coaxial line; the matching circuit is used for performing impedance matching on the signal input by the network interface and then outputting the signal to the coaxial line interface, or performing impedance matching on the signal input by the coaxial line interface and then outputting the signal to the network interface.
In the embodiment of the application, the adapter connector connects the network interface and the coaxial line interface through the isolation transformer, and the impedance of the first coil side is matched with the impedance of the network line connected with the network interface, and the impedance of the second coil side is matched with the coaxial line impedance connected with the axis interface, so that the signal conversion of two different networks of the coaxial line network and the network line network is realized, and further when one of the networks cannot conveniently apply a proper network due to reasons such as difficult wiring and the like, the signal conversion can be realized in a different network form, or in some special occasions (for example, the line of the original line is insufficient), the original line can be prolonged by using the different line.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: and one end of the first blocking capacitor is connected with one end of the second coil, and the other end of the first blocking capacitor is connected with the coaxial line interface. In the embodiment of the application, the direct current blocking capacitor is arranged on the line on the second coil side, so that the influence of the direct current component on the line is eliminated.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: and one end of the electrostatic protection element is connected with one end of the second coil, and the other end of the electrostatic protection element is connected with the analog ground. In the embodiment of the application, the electrostatic protection element is arranged on the circuit on the second coil side, so that sensitive electronic circuits are protected from being damaged by electrostatic discharge events.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: one end of the first discharge tube is connected with one end of the second coil, and the other end of the first discharge tube is connected with a shielding ground. In the embodiment of the application, the discharge tube is arranged on the line on the second coil side, so that a sensitive electronic circuit is protected from being damaged by lightning stroke, and the common-mode voltage is reduced.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: the device comprises a first blocking capacitor and an electrostatic protection element, wherein one end of the electrostatic protection element is connected with one end of the second coil, the other end of the electrostatic protection element is connected with the analog ground, one end of the first blocking capacitor is connected with one end of the electrostatic protection element, and the other end of the first blocking capacitor is connected with the coaxial line interface.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: and one end of the first discharge tube is connected with the other end of the first DC blocking capacitor, and the other end of the first discharge tube is connected with a shielding ground.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: the coaxial line connector comprises a first blocking capacitor and a first discharge tube, wherein one end of the first blocking capacitor is connected with one end of a second coil, the other end of the first blocking capacitor is connected with the coaxial line connector, one end of the first discharge tube is connected with the other end of the first blocking capacitor, and the other end of the first discharge tube is connected with a shielding ground.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: an isolation capacitor, the analog ground being shielded ground by the isolation capacitor. In the embodiment of the application, the isolation capacitor is arranged between the analog ground and the shielding ground, so that the influence of a direct current component on a line on the analog ground side is eliminated.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: and one end of the second discharge tube is connected with one end of the first coil, and the other end of the second discharge tube is connected with the other end of the first coil. In the embodiment of the application, the discharge tube is arranged on the line on the first coil side, so that sensitive electronic circuits are protected from being damaged by lightning strike, and differential mode voltage is reduced.
With reference to one possible implementation manner of the embodiment of the first aspect, the matching circuit further includes: and one end of the second blocking capacitor is connected with one end of the first coil, and the other end of the second blocking capacitor is connected with the network interface. In the embodiment of the application, the direct current blocking capacitor is arranged on the line on the first coil side, so that the influence of direct current components on the line is eliminated.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. The foregoing and other objects, features and advantages of the application will be apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be to scale as practical, emphasis instead being placed upon illustrating the subject matter of the present application.
Fig. 1 is a schematic structural diagram illustrating a mating connector according to an embodiment of the present disclosure.
Fig. 2 shows a schematic circuit diagram of a matching circuit according to an embodiment of the present application.
Fig. 3 shows a schematic circuit diagram of another matching circuit provided in an embodiment of the present application.
Icon: 10-an adapter connector; 11-a network interface; 12-coaxial line interface; 13-matching circuit.
Detailed Description
Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In view of the problem that a coaxial cable network and a network cable network cannot be directly intercommunicated, an embodiment of the present application provides an adaptive connector to implement signal interconnection between two heterogeneous network system lines, namely, the coaxial cable network and the network cable network, so that when one of the networks cannot be conveniently applied to a suitable network due to reasons such as difficult wiring, a heterogeneous network form may be used for signal conversion, or, in some special occasions (for example, insufficient lines of an original line), the original line may be extended by using a heterogeneous line.
The present embodiment provides an adapter connector 10, as shown in fig. 1. The adapter connector 10 includes: a network interface 11, a coaxial line interface 12 and a matching circuit 13. The adapter connector 10 adopts a passive device to perform network matching, and realizes impedance matching of heterogeneous networks through PCB impedance design and parameter adjustment of components (such as capacitors, diodes and the like). In the embodiment of the present application, the passive adapter connector 10 is used for performing heterogeneous network matching, which is simple in operation and low in cost, and avoids additional implementation constraints of active conversion (such as power requirement), and meanwhile, can avoid the problem of high cost of active + protocol conversion.
The network interface 11 is used for connecting a network cable. The network interface 11 is of various kinds, and may be, for example, a conventional RJ45 interface (ethernet interface) or an RJ11 interface (telephone line interface).
The coaxial line interface 12 is used for connecting coaxial lines, and the coaxial line interface 12 has various types, such as a Coax interface, an RG-series interface, and the like.
The matching circuit 13 is respectively connected to the network interface 11 and the coaxial line interface 12, and is configured to output a signal input by the network interface 11 to the coaxial line interface 12 after performing impedance matching, or output a signal input by the coaxial line interface 12 to the network interface 11 after performing impedance matching.
As an alternative embodiment, as shown in fig. 2, the matching circuit 13 includes: isolation transformer T1. Two ends of a first coil of the isolation transformer T1 are both connected with the network interface 11, one end of a second coil of the isolation transformer T1 is connected with the coaxial line interface 12, and the other end of the second coil is connected with the analog ground. The matching circuit 13 adopts the isolation transformer T1 to adapt to impedance characteristics of different networks, and adopts a coil coupling mode to reduce mutual interference of signals in the different networks, thereby improving transmission efficiency.
The impedance of the first coil side is matched with the impedance of the network cable, and the impedance of the second coil side is matched with the impedance of the coaxial cable, for example, the network interface 11 is an RJ11 interface, and the coaxial cable interface 12 is a Coax interface, where the RJ11 interface is connected to a telephone line, and the Coax interface is connected to a Coax cable (coaxial cable), and since the characteristic impedance of the telephone line is 600 ohms, the impedance of the first coil side needs to be 600 ohms so as to be matched with the impedance of the telephone line; whereas the characteristic impedance of the Coax cable is 75 ohms, it is therefore necessary to make the impedance of the second coil side 75 ohms in order to match the impedance of the coaxial line. For another example, when the network interface 11 is an RJ45 interface, the RJ45 interface is connected to a standard network cable and has an impedance of 120 ohms, so that the impedance of the first coil needs to be 120 ohms so as to match the impedance of the network cable. As can be seen from this example, the impedance of the matching circuit 13 is not fixed, but can be designed specifically according to the adaptation requirement, and the impedance of the matching circuit 13 can be changed to adapt to different types of networks.
Wherein, when no electronic component is provided on the connecting wire of the first coil side, at this time, the impedance of the first coil side includes: the impedance of the first coil and the impedance of the connection line for communicating the first coil with the network interface 11, that is, the impedance of the first coil side is the sum of the impedance of the first coil and the impedance of the connection line for communicating the first coil with the network interface 11. When an electronic component is further disposed on the connection line, the impedance of the first coil side further includes the impedance of the electronic component disposed on the connection line of the first coil side, that is, the impedance of the first coil side is the sum of the impedance of the first coil, the impedance of the connection line for communicating the first coil with the network interface 11, and the impedance of the electronic component disposed on the connection line of the first coil side. Here, the case of the impedance of the second coil side is similar to that of the first coil side, and is not described again for the sake of avoiding redundancy.
The first coil or the second coil may be a primary coil and a secondary coil. When a signal is input from the coaxial line interface 12, the second coil is a primary coil, and correspondingly, the first coil is a primary coil; when a signal is input from the network interface 11, the first coil is a primary coil, and correspondingly, the second coil is a secondary coil.
In order to reduce the attenuation of signals transmitted in heterogeneous networks, as shown in fig. 3, as an alternative embodiment, the matching circuit 13 further includes: one end of the first dc blocking capacitor C1 and one end of the first dc blocking capacitor C1 are connected to one end of the second coil, and the other end of the first dc blocking capacitor C1 is connected to the coaxial line interface 12. It should be noted that, in this embodiment, the matching circuit 13 may only include the isolation transformer T1 and the first dc blocking capacitor C1, and may not include the reference numerals C2, C0, D1, D2, and E1 in the drawing.
In order to protect sensitive electronic circuits from electrostatic discharge events, as an alternative embodiment, the matching circuit 13 further comprises: one end of the electrostatic protection element E1 and one end of the electrostatic protection element E1 are connected to one end of the second coil, and the other end of the electrostatic protection element E1 is connected to an analog ground. The electrostatic protection element E1 may be a Transient Voltage Super (TVS) or an ESD protection diode. In this embodiment, the matching circuit 13 may include only the isolation transformer T1 and the electrostatic protection element E1, and may not include the reference numerals C1, C2, C0, D1, and D2 in the drawing.
In order to protect sensitive electronic circuits from lightning strikes, the matching circuit 13 further comprises, as an alternative embodiment: one end of the first discharge tube D1 is connected to one end of the second coil, and the other end of the first discharge tube D1 is grounded (a case). The first discharge tube D1 can also pull the common mode voltage low. The first discharge tube D1 may be a discharge tube commonly used at present, such as a gas discharge tube, a ceramic discharge tube, or the like. In this embodiment, the matching circuit 13 may include only the isolation transformer T1 and the first discharge tube D1, and may not include the reference numerals C1, C2, C0, D2, and E1 in the drawing.
In another embodiment, the matching circuit 13 may include at least two components of the first dc blocking capacitor C1, the electrostatic protection element E1, and the first discharge tube D1 on the second coil side. For example, the second coil side only comprises: when the first dc blocking capacitor C1 and the electrostatic protection element E1 are connected, at this time, one end of the electrostatic protection element E1 may be connected to one end of the second coil, the other end of the electrostatic protection element E1 is connected to the analog ground, one end of the first dc blocking capacitor C1 is connected to one end of the electrostatic protection element E1, and the other end of the first dc blocking capacitor C1 is connected to the coaxial line interface 12; one end of the first dc blocking capacitor C1 may be connected to one end of the second coil, the other end of the first dc blocking capacitor C1 may be connected to the coaxial line interface 12, one end of the electrostatic protection element E1 may be connected to the other end of the second coil, and the other end of the electrostatic protection element E1 may be connected to the analog ground. Similarly, the second coil side only includes: the first discharge tube D1 and the electrostatic protection element E1 or the first dc blocking capacitor C1 and the first discharge tube D1 may be arranged in an interchangeable manner, i.e., one of the elements may be located on the left side or the right side of the other element. For example, one end of the first dc blocking capacitor C1 is connected to one end of the second coil, the other end of the first dc blocking capacitor C1 is connected to the coaxial line interface 12, one end of the first discharge tube D1 is connected to the other end of the first dc blocking capacitor C1, and the other end of the first discharge tube D1 is grounded. Similarly, when the second coil side includes the three elements, the first dc blocking capacitor C1 may be located at the leftmost side, the middle side, or the rightmost side of the three elements, for example, one end of the electrostatic protection element E1 may be connected to one end of the second coil, the other end of the electrostatic protection element E1 may be connected to an analog ground, one end of the first dc blocking capacitor C1 may be connected to one end of the electrostatic protection element E1, the other end of the first dc blocking capacitor C1 may be connected to the coaxial line interface 12, one end of the first discharge tube D1 may be connected to the other end of the first dc blocking capacitor C1, and the other end of the first discharge tube D1 may be connected to a shielded ground.
In order to isolate the analog ground and the shield ground, optionally, the matching circuit 13 further comprises: and the isolation capacitor C0 is connected with the shielding ground through the isolation capacitor C0 in an analog mode so as to isolate the analog ground from the shielding ground, and the influence of a direct current component on a line on the analog ground side is eliminated.
In order to reduce the attenuation of the signal during transmission in the heterogeneous network, the first dc blocking capacitor C1 may be provided on the second coil side, and the dc blocking capacitor provided on the first coil side may be referred to as the second dc blocking capacitor C2 for convenience of distinction, in which case one end of the second dc blocking capacitor C2 is connected to one end of the first coil, and the other end of the second dc blocking capacitor C2 is connected to the network interface 11. In this embodiment, the matching circuit 13 may include only the isolation transformer T1 and the second dc blocking capacitor C2, and may not include the reference numerals C1, C0, D1, D2, and E1 in the drawing. It should be noted that the number of the second dc blocking capacitors C2 may be 1, or 2, and when the number of the second dc blocking capacitors C2 is 1, the second dc blocking capacitors C2 may be disposed on the line of TIP in fig. 3, or may be disposed on the line of RING.
In order to protect sensitive electronic circuits from being damaged by lightning strikes, the first discharge tube D1 may be disposed on the first coil side in addition to the second coil side, and for the sake of convenience of distinction, the discharge tube disposed on the first coil side is referred to as a second discharge tube D2, and in this case, one end of the second discharge tube D2 is connected to one end of the first coil, and the other end of the second discharge tube D2 is connected to the other end of the first coil. In this embodiment, the matching circuit 13 may include only the isolation transformer T1 and the second discharge tube D2, and may not include the reference numerals C1, C2, C0, D1, and E1 in the drawing.
In another embodiment, the matching circuit 13 may include two components, i.e., a second dc blocking capacitor C2 and a second discharge tube D2, on the first coil side. For example, the positional relationship of the two elements may be interchanged, i.e., one of the elements may be located on the left or right of the other element. For example, one end of the second dc blocking capacitor C2 is connected to one end of the first coil, the other end of the second dc blocking capacitor C2 is connected to the network interface 11, one end of the second discharge tube D2 is connected to one end of the first coil, and the other end of the second discharge tube D2 is connected to the other end of the first coil.
It should be noted that the matching circuit 13 may not include any component on the second coil side, and in this case, includes only a connection line, or may include at least one component of the first dc blocking capacitor C1, the electrostatic protection element E1, and the first discharge tube D1; similarly, the matching circuit 13 may not include any component on the first coil side, and in this case, includes only the connection line, or may include at least one of the second dc blocking capacitor C2 and the second discharge tube D2. This may be combined into various embodiments and therefore the schematic illustrations presented above should not be construed as limiting the application.
Wherein, J1 in fig. 2 and 3 represents the network interface 11, J2 represents the coaxial line interface 12, and the figure shows the 6-pin RJ11 type network interface 11.
The embodiment of the application also provides a method for extending a line by using a different line, which comprises the following steps: the target line is extended by a pair of the above-mentioned adapter connectors 10, two adapter connectors 10 are connected by a specific line, an input terminal of one adapter connector 10 is connected to the target line, and an output terminal of the other adapter connector 10 is connected to the device to be connected. When the target line is a network line, the specific line is a coaxial line, and when the target line is a coaxial line, the specific line is a network line.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The method provided by the embodiment of the present invention has the same implementation principle and technical effect as the foregoing adaptive connector 10 embodiment, and for the sake of brief description, no part of the method embodiment is mentioned, and reference may be made to the corresponding contents in the foregoing adaptive connector 10 embodiment.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. An adapter connector, comprising:
the network interface is used for connecting a network cable;
the coaxial line interface is used for connecting a coaxial line;
and a matching circuit, the matching circuit comprising: the two ends of a first coil of the isolation transformer are both connected with the network interface, one end of a second coil of the isolation transformer is connected with the coaxial line interface, the other end of the second coil is connected with an analog ground, the impedance of the first coil side is matched with the impedance of the network line, and the impedance of the second coil side is matched with the impedance of the coaxial line;
the matching circuit is used for outputting the signal input by the network interface to the coaxial line interface after impedance matching, or outputting the signal input by the coaxial line interface to the network interface after impedance matching,
the matching circuit further includes: a second blocking capacitor and a second discharge tube;
one end of the second blocking capacitor is connected with one end of the first coil, and the other end of the second blocking capacitor is connected with the network interface;
one end of the second discharge tube is connected with one end of the first coil through one second blocking capacitor, and the other end of the second discharge tube is connected with the other end of the first coil through the other second blocking capacitor.
2. The mating connector of claim 1, wherein the matching circuit further comprises: and one end of the first blocking capacitor is connected with one end of the second coil, and the other end of the first blocking capacitor is connected with the coaxial line interface.
3. The mating connector of claim 1, wherein the matching circuit further comprises: and one end of the electrostatic protection element is connected with one end of the second coil, and the other end of the electrostatic protection element is connected with the analog ground.
4. The mating connector of claim 1, wherein the matching circuit further comprises: one end of the first discharge tube is connected with one end of the second coil, and the other end of the first discharge tube is connected with a shielding ground.
5. The mating connector of claim 1, wherein the matching circuit further comprises: the device comprises a first blocking capacitor and an electrostatic protection element, wherein one end of the electrostatic protection element is connected with one end of the second coil, the other end of the electrostatic protection element is connected with the analog ground, one end of the first blocking capacitor is connected with one end of the electrostatic protection element, and the other end of the first blocking capacitor is connected with the coaxial line interface.
6. The mating connector of claim 5, wherein the matching circuit further comprises: and one end of the first discharge tube is connected with the other end of the first DC blocking capacitor, and the other end of the first discharge tube is connected with a shielding ground.
7. The mating connector of claim 1, wherein the matching circuit further comprises: the coaxial line connector comprises a first blocking capacitor and a first discharge tube, wherein one end of the first blocking capacitor is connected with one end of a second coil, the other end of the first blocking capacitor is connected with the coaxial line connector, one end of the first discharge tube is connected with the other end of the first blocking capacitor, and the other end of the first discharge tube is connected with a shielding ground.
8. The mating connector of claim 1, 3 or 5, wherein the matching circuit further comprises: an isolation capacitor, the analog ground being shielded ground by the isolation capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931335.8A CN110620963B (en) | 2019-09-27 | 2019-09-27 | Adaptive connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931335.8A CN110620963B (en) | 2019-09-27 | 2019-09-27 | Adaptive connector |
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| CN110620963A CN110620963A (en) | 2019-12-27 |
| CN110620963B true CN110620963B (en) | 2022-04-15 |
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| CN201910931335.8A Active CN110620963B (en) | 2019-09-27 | 2019-09-27 | Adaptive connector |
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| CN103730800A (en) * | 2012-10-16 | 2014-04-16 | 上海贝尔股份有限公司 | Conversion connector |
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| CN208986322U (en) * | 2018-09-26 | 2019-06-14 | 昆山捷尔普电子科技有限公司 | Coaxial cable EOC network adapter suitable for different characteristics impedance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070173077A1 (en) * | 2006-01-24 | 2007-07-26 | Hwa Yao Technologies Co., Ltd. | Universal serial bus (usb) network adapter connectable to external antenna |
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| 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 |
| CN201878169U (en) * | 2010-11-29 | 2011-06-22 | 寿哲男 | Switch for switching between twisted pair signals and coaxial signals |
| CN103730800A (en) * | 2012-10-16 | 2014-04-16 | 上海贝尔股份有限公司 | Conversion connector |
| CN106374306A (en) * | 2016-08-26 | 2017-02-01 | 浙江大华技术股份有限公司 | Passive coaxial network converter and power over Ethernet system |
| CN208986322U (en) * | 2018-09-26 | 2019-06-14 | 昆山捷尔普电子科技有限公司 | Coaxial cable EOC network adapter suitable for different characteristics impedance |
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| CN110620963A (en) | 2019-12-27 |
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