CN114090486A - Ethernet and USB integrated communication interface - Google Patents
Ethernet and USB integrated communication interface Download PDFInfo
- Publication number
- CN114090486A CN114090486A CN202111404179.3A CN202111404179A CN114090486A CN 114090486 A CN114090486 A CN 114090486A CN 202111404179 A CN202111404179 A CN 202111404179A CN 114090486 A CN114090486 A CN 114090486A
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- usb
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Transfer Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
A communication interface and a communication method for fusing Ethernet and USB comprise a special data interface component and a special signal conversion component. The dedicated data interface assembly uses an RJ45 connector as a carrier. The hundred mega Ethernet uses 4 needles, and the other 4 needles are used for USB port connection. The dedicated signal conversion assembly includes two RJ45 connectors and one USB connector. And the special data interface component is converted into a universal hundred-mega Ethernet interface and a universal USB interface by the special signal conversion group. The device with the Ethernet interface is integrated with the USB interface, and is matched with abundant USB expansion functions, so that the functions of product debugging, system updating, state backup and the like can be realized, the product performance is enriched, and the product volume is saved.
Description
Technical Field
The invention relates to a network interface and a USB interface, in particular to a communication interface with integration of Ethernet and USB
Background
With the development of network technology, network interfaces on embedded devices have become standard configurations. But in the actual development and debugging process, a serial port or other interfaces can be used for equipment configuration and debugging. In order to meet the debugging requirements, debugging interfaces such as DB9 and the like are required to be reserved on the embedded device besides the network interface for debugging serial port application. To save debug port volume, most embedded devices use a special connector rather than the standard DB9 interface used by serial ports.
With the development of electronic technology, the computer is basically not equipped with interfaces such as DB9, DB25 and the like, and the network and USB interfaces are standard configurations of the computer. If a serial port is needed, a debugging line for converting the USB into the serial port is specially configured. In order to meet the requirement of a special interface, a cable of a DB9 debugging port is required to be arranged. In the actual use process, the cables are more, special cables need to be customized, and the use is very inconvenient.
Disclosure of Invention
The purpose of the invention is: an Ethernet and USB converged communication interface is provided.
The scheme of the invention is as follows:
1. an Ethernet and USB converged communication interface comprises a special data interface component and a special signal conversion component.
a) The dedicated data interface assembly uses an RJ45 connector as a carrier. The hundred mega Ethernet uses 4 needles, and the other 4 needles are used for USB port connection.
b) The special signal conversion assembly comprises two RJ45 connectors and a USB connector.
The first RJ45 connection includes the definition of a hundred mega ethernet and USB interface, the second RJ45 connector includes the definition of a hundred mega ethernet signal only, and the USB connector includes the definition of a USB signal. The three connectors are connected in an electric connection mode.
2. The first RJ45 connector in the special data interface component and the special signal conversion component is connected by a common network cable; a second RJ45 connector in the special signal conversion component is connected with a network port of the auxiliary debugging equipment by using a common network cable; the USB connector in the special signal conversion component uses a common USB line to connect with a USB port of the auxiliary debugging equipment.
3. The special signal conversion component converts the hundred-mega Ethernet signal in the special communication interface into a common Ethernet signal through a connecting line between the first RJ45 and the second RJ 45; the special signal conversion component converts the USB signal in the special communication interface into a common USB signal through a connection wire between the first RJ45 and the USB connector. The first RJ45 connector and the USB connector may be separate connectors or an RJ45+ USB unified connector may be used.
4. The dedicated signal conversion assembly may use a PCB for signal distribution conversion and may also use a dedicated communication cable for signal distribution conversion.
When the special communication cable is used for signal distribution conversion, the special communication cable is characterized in that: one end of the cable is connected with an 8-core universal network cable and a crystal head in a compression mode, and the other end of the cable divides 4 cables used by the hundred-mega Ethernet and 4 cables used by USB signals into two groups which are respectively connected with an RJ45 crystal head and a USB connector.
Compared with the prior art, the invention has the following characteristics:
the invention provides a communication interface integrating Ethernet and USB, which has the following advantages:
1. one RJ45 interface is fused with hundred mega Ethernet and USB signals, so that the connector and the design area are saved, and the production cost is reduced;
2. based on the abundant expansion performance of the USB, a USB expansion circuit is designed in the embedded device, so that various debugging functions can be conveniently expanded;
3. external signal switching can be realized by matching a designed PCB with a standard cable or designing a special debugging cable, so that the number of the external signal switching devices is reduced
Drawings
FIG. 1 is a schematic diagram of a dedicated data interface module of the present invention;
FIG. 2 shows the principle of the signal conversion module of the present invention
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
1. The Ethernet and USB converged communication interface is characterized by comprising a special data interface component and a special signal conversion component.
2. The special data interface module is designed on an embedded device, a universal RJ45 connector is used, a wiring schematic diagram is shown in the attached figure 1, and signals are defined as follows:
TABLE 1 Special data interface component Signal Definitions
| Pin number | Definition of | Description of the invention |
| PIN1 | ETHTX_P | Hundred-million Ethernet data transmission differential signal positive |
| PIN2 | ETHTX_N | Differential signal negative for hundred mega Ethernet data transmission |
| PIN3 | ETHRX_P | Differential signal positive for hundred mega Ethernet data receiving |
| PIN4 | USBGND | USB power supply |
| PIN5 | USBVCC | USB power supply |
| PIN6 | ETHRX_N | Differential signal negative for hundred mega Ethernet data receiving |
| PIN7 | USBD_P | USB data differential signal positive |
| PIN8 | USBD_N | USB data differential signal negative |
4 pins of 8 pins of the RJ45 connector are selected as one hundred mega Ethernet data signals, and the rest 4 pins are used as USB signals.
4. The schematic diagram of the dedicated signal conversion module is shown in FIG. 2, and three connector signals are defined as
TABLE 2 Signal Definitions for specialized Signal conversion Components
5. The dedicated signal connection component signal distribution can take a variety of forms, and two embodiments are referenced below:
a) and designing a PCB (printed circuit board) to realize signal switching. In this scheme, the first RJ45 and the second RJ45 can be RJ45 sockets, USB connector selection sockets (typeA, typeB, typeC, microsb, etc.). The three devices are mounted on a PCB, which is connected to three connectors by printed copper conductors according to fig. 2, thereby achieving signal transfer distribution. In practical use, the first RJ45 and the dedicated data interface module are connected by a common network cable, so that the second RJ45 socket and the USB socket have standard hundred-mega ethernet signals and USB signals. The functions of communication, debugging, backup and the like between the embedded device and the embedded device can be realized by connecting a computer or other auxiliary equipment with a standard network cable and a USB connecting cable.
b) And designing a special connecting cable to realize signal switching. In this arrangement, the first and second RJ45 connectors use RJ45 crystal heads and the USB uses typeA plugs. The cable was first crimped to a normal network using a normal network and a first RJ45 connector, and then the other end of the network was split according to table 2. Four wires 1, 2, 3, 6 and a second RJ45 are crimped as shown in table 2 and four wires 4, 5, 7, 8 are soldered to the USB connector as shown in table 2. In order to ensure the firmness of the three joints, the three connectors and the network cable connecting part can use the processes of glue dispensing, injection molding and the like during manufacturing, so that the reliability is ensured. When the special connecting cable is used, the first RJ45 crystal head is connected with the special data interface component, and the second RJ45 crystal head and the typeA USB plug are respectively connected with a computer or other auxiliary equipment, so that the functions of communication, debugging, backup and the like between the embedded device and the embedded device can be realized.
Claims (4)
1. The Ethernet and USB converged communication interface is characterized by comprising a special data interface component and a special signal conversion component.
a) The dedicated data interface assembly uses an RJ45 connector as a carrier. The hundred mega Ethernet uses 4 needles, and the other 4 needles are used for USB port connection.
b) The special signal conversion assembly comprises two RJ45 connectors and a USB connector. The first RJ45 connection includes the definition of a hundred mega ethernet and USB interface, the second RJ45 connector includes the definition of a hundred mega ethernet signal only, and the USB connector includes the definition of a USB signal. The three connectors are connected in an electric connection mode.
2. The ethernet and USB converged communication interface of claim 1, wherein the first RJ45 connector of the dedicated data interface module and the dedicated signal conversion module is connected using a common network cable; a second RJ45 connector in the special signal conversion assembly is connected with a network port of the auxiliary debugging equipment by using a common network cable; the USB connector in the special signal conversion component uses a common USB line to connect with a USB port of the auxiliary debugging equipment.
3. The Ethernet and USB converged communication interface of claim 1, wherein the dedicated signal conversion module is configured to convert the hundred mega Ethernet signals in the dedicated communication interface into the normal Ethernet signals through a connection between the first RJ45 and the second RJ 45; the special signal conversion component converts the USB signal in the special communication interface into a common USB signal through a connecting line between the first RJ45 and the USB connector. The first RJ45 connector and the USB connector may be separate connectors or an RJ45+ USB unified connector may be used.
4. The ethernet and USB converged communication interface of claim 1, wherein the dedicated signal conversion module is capable of performing signal distribution conversion using a PCB and also capable of performing signal distribution conversion using a dedicated communication cable.
When the special communication cable is used for signal distribution conversion, the special communication cable is characterized in that: one end of the USB plug is connected with an 8-core universal network cable and a crystal head in a crimping mode, and the other end of the USB plug is used for dividing 4 cables used by a hundred mega Ethernet and 4 cables used by USB signals into two groups and respectively connected with an RJ45 crystal head and a USB connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111404179.3A CN114090486A (en) | 2021-11-24 | 2021-11-24 | Ethernet and USB integrated communication interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111404179.3A CN114090486A (en) | 2021-11-24 | 2021-11-24 | Ethernet and USB integrated communication interface |
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| Publication Number | Publication Date |
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| CN114090486A true CN114090486A (en) | 2022-02-25 |
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| CN202111404179.3A Pending CN114090486A (en) | 2021-11-24 | 2021-11-24 | Ethernet and USB integrated communication interface |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040136384A1 (en) * | 2003-01-10 | 2004-07-15 | Double Win Enterprise Co., Ltd. | Ethernet communication apparatus, bridge thereof and connection device |
| CN1671145A (en) * | 2004-03-16 | 2005-09-21 | 华为技术有限公司 | Line conjunction method for communication interface and line partition apparatus |
| CN201590833U (en) * | 2010-01-20 | 2010-09-22 | 中兴通讯股份有限公司 | Multifunctional ethernet interface device |
| CN102497455A (en) * | 2011-12-03 | 2012-06-13 | 南京南瑞继保电气有限公司 | Data communication interface physically fusing 100M Ethernet interface and serial port |
| CN107357698A (en) * | 2017-07-07 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of method and device of acquisition BMC Serial Port Informations |
-
2021
- 2021-11-24 CN CN202111404179.3A patent/CN114090486A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040136384A1 (en) * | 2003-01-10 | 2004-07-15 | Double Win Enterprise Co., Ltd. | Ethernet communication apparatus, bridge thereof and connection device |
| CN1671145A (en) * | 2004-03-16 | 2005-09-21 | 华为技术有限公司 | Line conjunction method for communication interface and line partition apparatus |
| CN201590833U (en) * | 2010-01-20 | 2010-09-22 | 中兴通讯股份有限公司 | Multifunctional ethernet interface device |
| CN102497455A (en) * | 2011-12-03 | 2012-06-13 | 南京南瑞继保电气有限公司 | Data communication interface physically fusing 100M Ethernet interface and serial port |
| CN107357698A (en) * | 2017-07-07 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of method and device of acquisition BMC Serial Port Informations |
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