CN111858425A - USB-optical fiber conversion device and USB communication equipment - Google Patents
USB-optical fiber conversion device and USB communication equipment Download PDFInfo
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- CN111858425A CN111858425A CN202010489700.7A CN202010489700A CN111858425A CN 111858425 A CN111858425 A CN 111858425A CN 202010489700 A CN202010489700 A CN 202010489700A CN 111858425 A CN111858425 A CN 111858425A
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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
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4009—Coupling between buses with data restructuring
- G06F13/4018—Coupling between buses with data restructuring with data-width conversion
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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
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The embodiment of the application discloses a USB-optical fiber conversion device and USB communication equipment. The technical scheme provided by the embodiment of the application is that the USB equipment is connected with the USB connection module through the USB connection module, USB data communication with the USB equipment is realized, Ethernet data received from the optical fiber Ethernet receiving and transmitting module is converted into USB data through the USB extension module, the received USB data is converted into the Ethernet data and then is transmitted to the optical fiber Ethernet receiving and transmitting module, the transmission distance of the USB data is extended, the photoelectric conversion module is connected with the photoelectric conversion module in the USB-optical fiber conversion device at the other end through communication optical fibers, photoelectric conversion between the Ethernet data is realized, USB connection extension is carried out between the two USB equipment through the optical fibers, on-site wiring and cable withdrawal are facilitated, use experience is optimized, and the USB connection device has the advantages of being reusable and capable of enduring different use environments.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a USB-optical fiber conversion device and USB communication equipment.
Background
The USB (universal serial bus) has the characteristics of hot plug, small volume, low cost, unified standard and the like, and is widely used in various electronic devices, wherein the bandwidth of the USB2.0 reaches 480Mbps (bit rate, number of bits transmitted per second), which is enough to meet the bandwidth requirements of most peripheral devices.
Because the USB transmission distance is short and cannot meet the requirement of long-distance transmission, the USB is often converted into other media for transmission, and at present, the USB transmission distance is generally extended by a USB to twisted pair method. However, the existing device for prolonging the USB wiring through the twisted pair is not suitable for some field wiring application occasions, is inconvenient for field wiring and disconnection, and affects use experience.
Disclosure of Invention
The embodiment of the application provides a USB-optical fiber conversion device and USB communication equipment, so that on-site wiring and disconnection are facilitated, and the use experience is optimized.
In a first aspect, an embodiment of the present application provides a USB-optical fiber conversion apparatus, including a USB connection module, a USB extension module, an optical fiber ethernet transceiver module, and a photoelectric conversion module, which are communicatively connected, where:
the photoelectric conversion module is connected with the optical fiber Ethernet transceiver module and used for accessing a communication optical fiber and realizing photoelectric conversion of Ethernet data between the optical fiber Ethernet transceiver module and the communication optical fiber;
the USB connecting module is connected with the USB extension module and used for providing a USB interface and realizing USB data transmission with the USB extension module;
the USB extension module is connected to the optical fiber Ethernet transceiving module, the USB extension module is used for realizing conversion between USB data and Ethernet data, and the optical fiber Ethernet transceiving module is used for realizing data transmission between the USB extension module and the photoelectric conversion module.
Further, the photoelectric conversion module is connected to the optical fiber ethernet transceiving module through an OFE interface.
Further, the photoelectric conversion module includes a data receiving module and a data transmitting module, an OFE _ RX _ P pin, an OFE _ RX _ N pin, and an OFE _ IMON pin of the fiber-optic ethernet receiving and transmitting module are respectively connected to an RXP pin, an RXN pin, and an IMON pin of the data receiving module, and an OFE _ TX _ P pin, an OFE _ TX _ N pin, and an OFE _ TX _ EN pin of the fiber-optic ethernet receiving and transmitting module are respectively connected to a TXP pin, a TXN pin, and a TX _ EN pin of the data transmitting module.
Further, the USB extension module is connected to the fiber ethernet transceiver module through an RGMII interface, a GMII interface, or an MII interface.
Further, the RGMII/MII _ RXEN pin, the RGMII/MII _ RXCLK pin, the RGMII/MII _ RXD3 pin, the RGMII/MII _ RXD 634 pin, the RGMII/MII _ RXD1 pin, the RGMII/MII _ RXD0 pin, the RGMII/MII _ TXEN pin, the RGMII/MII _ TXCLK pin, the RGMII/MII _ TXD3 pin, the RGMII/MII _ TXD2 pin, the RGMII/MII _ TXD1 pin, and the RGMII/MII _ TXD0 pin of the fiber ethernet transceiver module are connected to the RGMII _ TXEN pin, the RGMII _ TXCLK pin, the RGMII _ TXD3 pin, the RGMII _ TXD _ 3 pin, the MII _ 1 pin, the RGMII _ rxi _ RXD0 pin, the RGMII _ TXD _ RXCLK pin, the RGMII _ TXD 895397 pin, the RGMII _ TXD 6336 pin, the RGMII _ TXD 6326 pin, and the RGMII _ TXD 8236 pin of the USB extender module, respectively.
Furthermore, the USB connecting module is a USB connector, and a D-pin and a D + pin of the USB extension module are respectively connected with the D-pin and the D + pin of the USB connecting module.
Further, the USB extension module is configured with a USB-related sublayer and a PCS sublayer that are connected to each other, the fiber-optic ethernet transceiver module is configured with a PCS sublayer and a PMA sublayer that are connected to each other, and the photoelectric conversion module is configured with a PMD sublayer and a fiber interface that are connected to each other, wherein:
the USB connection module is connected with a USB related sublayer of the USB extension module, a PCS sublayer of the USB extension module is connected with a PCS sublayer of the optical fiber Ethernet receiving and transmitting module, and a PMA sublayer of the optical fiber Ethernet receiving and transmitting module is connected with a PMD sublayer of the photoelectric conversion module.
Furthermore, the optical fiber ethernet transceiver module is a plastic optical fiber ethernet transceiver chip, and the communication optical fiber is a plastic optical fiber.
In a second aspect, an embodiment of the present application provides a USB communication device, including two USB-to-optical fiber conversion apparatuses as described in the first aspect, where the two USB-to-optical fiber conversion apparatuses respectively provide a USB interface through a USB connection module for connecting with a USB device, and a photoelectric conversion module of each of the two USB-to-optical fiber conversion apparatuses is connected through a communication optical fiber.
Furthermore, the communication optical fiber is a plastic optical fiber which can be extended through the interface.
The USB device is connected with the USB device through the USB connecting module, USB data communication with the USB device is achieved, Ethernet data received from the optical fiber Ethernet receiving and transmitting module is converted into USB data through the USB extending module, the received USB data are converted into the Ethernet data and then are transmitted to the optical fiber Ethernet receiving and transmitting module, transmission distance extension of the USB data is achieved, the photoelectric conversion module is connected with the photoelectric conversion module in the USB-optical fiber conversion device at the other end through the communication optical fiber, photoelectric conversion between the Ethernet data is achieved, USB wiring extension is conducted between the two USB devices through the optical fiber, wiring and withdrawing on the site are facilitated, use experience is optimized, and the USB device has the advantages of being reusable and capable of enduring different use environments.
Drawings
Fig. 1 is a block diagram illustrating a USB-to-optical fiber conversion apparatus according to an embodiment of the present disclosure;
fig. 2 is an expanded block diagram of a USB-to-optical fiber conversion apparatus according to an embodiment of the present application;
fig. 3 is a schematic circuit connection diagram of an optical fiber ethernet transceiver module and a photoelectric conversion module according to an embodiment of the present application;
Fig. 4 is a schematic circuit diagram of a fiber-optic ethernet transceiver module and a USB extension module according to an embodiment of the present application;
fig. 5 is a block diagram of a USB communication device according to a second embodiment of the present application.
Reference numerals: 1. a USB connection module; 2. a USB extension module; 3. a fiber optic Ethernet transceiver module; 4. a photoelectric conversion module; 41. a data receiving module; 42. and a data sending module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings.
In the description of the embodiments of the present application, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Fig. 1 shows a block diagram of a USB-optical fiber conversion device according to an embodiment of the present disclosure, and referring to fig. 1, the USB-optical fiber conversion device includes a USB connection module 1, a USB extension module 2, an optical fiber ethernet transceiver module 3, and a photoelectric conversion module 4, which are sequentially connected. The USB connecting module 1, the USB extending module 2, the optical fiber Ethernet transceiving module 3 and the photoelectric conversion module 4 which are in communication connection in sequence.
Specifically, the photoelectric conversion module 4 is connected to the optical fiber ethernet transceiver module 3 through an OFE interface, and the photoelectric conversion module 4 is provided with an optical fiber access interface (in this embodiment, the photoelectric conversion chip and the optical fiber access interface are integrated into the photoelectric conversion module 4, so that the size of the device can be reduced, and in other embodiments, the photoelectric conversion chip and the optical fiber access interface can be separately provided), and the optical fiber access interface is used for accessing a communication optical fiber. Further, the photoelectric conversion module 4 is used for implementing photoelectric conversion of ethernet data between the optical fiber ethernet transceiver module 3 and the communication optical fiber, that is, the photoelectric conversion module 4 is used for converting an optical signal received from the communication optical fiber into an electrical signal and transmitting the electrical signal to the optical fiber ethernet transceiver module 3, and converting an electrical signal received from the optical fiber ethernet transceiver module 3 into an optical signal and transmitting the optical signal through the communication optical fiber.
The data transmission interface of the USB connection module 1 is connected to the USB extension module 2, and is used to provide a USB interface for the USB device to access the USB-optical fiber conversion apparatus, and to implement USB data transmission between the USB device and the USB extension module 2.
The USB extension module 2 is connected to the fiber ethernet transceiver module 3 through an RGMII interface, a GMII interface, or an MII interface (this embodiment is described by taking connection through an RGMII interface as an example), and the USB extension module 2 is configured to implement conversion between USB data and ethernet data, that is, to convert ethernet data received from the fiber ethernet transceiver module 3 into USB data and send the USB data to the USB connection module 1, and convert USB data received from the USB connection module 1 into ethernet data and send the ethernet data to the fiber ethernet transceiver module 3.
Further, the optical fiber ethernet transceiver module 3 is configured to implement data transmission between the USB extension module 2 and the photoelectric conversion module 4, that is, the optical fiber ethernet transceiver module 3 transmits the ethernet data received from the USB extension module 2 to the photoelectric conversion module 4, and transmits the ethernet data received from the photoelectric conversion module 4 to the USB extension module 2. The USB extension module 2 can realize conversion between a USB interface and an RJ45 interface, and can realize extension of transmission distance after converting USB data into ethernet data.
The communication optical fiber provided in this embodiment is specifically a plastic optical fiber, the optical fiber access interface on the photoelectric conversion module 4 is a plastic optical fiber access interface, and the optical fiber ethernet transceiver module 3 is specifically a plastic optical fiber ethernet transceiver chip. Further, data streams among the USB connection module 1, the USB extension module 2, the optical fiber ethernet transceiver module 3, and the photoelectric conversion module 4 may be transmitted from the USB connection module 1 to the photoelectric conversion module 4, and may also be transmitted from the photoelectric conversion module 4 to the USB connection module 1, that is, full duplex transmission.
Fig. 2 is an expanded block diagram of a USB-to-optical fiber conversion apparatus according to an embodiment of the present disclosure. As shown in fig. 2, the USB extension module 2 is configured with a USB related sublayer and a PCS sublayer connected to each other, the optical fiber ethernet transceiver module 3 is configured with a PCS sublayer and a PMA sublayer connected to each other, and the photoelectric conversion module 4 is configured with a PMD sublayer and an optical fiber interface connected to each other.
Further, the USB connection module 1 is connected to a USB related sublayer of the USB extension module 2, a PCS sublayer of the USB extension module 2 is connected to a PCS sublayer of the optical fiber ethernet transceiver module 3, and a PMA sublayer of the optical fiber ethernet transceiver module 3 is connected to a PMD sublayer of the photoelectric conversion module 4. The PCS sublayer, namely a physical coding sublayer is responsible for data stream coding/decoding, the PMA sublayer, namely a physical medium additional sublayer is responsible for data stream serialization and deserialization, and the PMD sublayer, namely a physical medium related sublayer is responsible for an electrical block for serial signal transmission.
The USB extension module 2 provided in the embodiment of the present application has a USB interface and an RGMII interface (standard symmetric RGMII interface), the photoelectric conversion module 4 has an OFE interface and an optical fiber interface, the optical fiber ethernet transceiver module 3 has an RGMII interface and an OFE interface, and the optical fiber ethernet transceiver module 3 is connected to the USB extension module 2 through the RGMII interface and is connected to the photoelectric conversion module 4 through the OFE interface.
Fig. 3 is a schematic circuit connection diagram of an optical fiber ethernet transceiver module and a photoelectric conversion module according to an embodiment of the present disclosure. As shown in fig. 3, the optical fiber ethernet transceiver module 3 is composed of an optical fiber ethernet transceiver chip and its peripheral circuits, the photoelectric conversion module 4 is composed of a data receiving module, a data transmitting module and peripheral circuits, and reference may be made to fig. 3 for the peripheral circuits of the optical fiber ethernet transceiver module 3 and the photoelectric conversion module 4, which are not described again in this embodiment.
Specifically, the OFE _ RX _ P pin (pin No. 48), the OFE _ RX _ N pin (pin No. 49), and the OFE _ IMON pin (pin No. 50) of the optical fiber ethernet transceiver module 3 are respectively connected to the RXP pin (pin No. 11), the RXN pin (pin No. 12), and the IMON pin (pin No. 8) of the data receiver module, and the OFE _ RX _ P pin (pin No. 48) and the OFE _ RX _ N pin (pin No. 49) of the optical fiber ethernet transceiver module 3 are connected to the RXP pin (pin No. 11), and the RXN pin (pin No. 12) of the data receiver module by differential wires having a differential impedance of 100 OOhms.
The OFE _ TX _ P pin (pin No. 44), the OFE _ TX _ N pin (pin No. 45), and the OFE _ TX _ EN pin (pin No. 51) of the fiber ethernet transceiving module 3 are connected to the TXP pin (pin No. 3), the TXN pin (pin No. 4), and the TX _ EN pin (pin No. 7) of the data transmitting module, respectively, and the OFE _ TX _ P pin (pin No. 44) and the OFE _ TX _ N pin (pin No. 45) of the fiber ethernet transceiving module 3 are connected to the TXP pin (pin No. 3) and the TXN pin (pin No. 4) of the data transmitting module by a differential line having a differential impedance of 100 OOhms.
Further, the fiber ethernet transceiver module 3 provided in this embodiment is further configured with a connection state feedback pin (pin No. 53, OFE _ LNK _ STAT), which can be connected to the MCU control device, and is configured to feed back the connection state of the fiber ethernet transceiver module 3 to the MCU control device.
Fig. 4 is a schematic circuit connection diagram of an optical fiber ethernet transceiver module and a USB extension module according to an embodiment of the present disclosure. The USB extension module 2 is specifically a USB extender control chip. As shown in fig. 4, the RGMII/MII _ RXEN pin, the RGMII/MII _ RXCLK pin, the RGMII/MII _ RXD3 pin, the RGMII/MII _ RXD 4 pin, the RGMII/MII _ RXD1 pin, the RGMII/MII _ RXD0 pin, and the RGMII/MII _ TXEN pin, the RGMII/MII _ TXCLK pin, the RGMII/MII _ TXD3 pin, the RGMII/MII _ TXD 8657 pin, the RGMII/MII _ TXD1 pin, and the RGMII/MII _ TXD0 pin of the fiber ethernet transceiver module 3 are connected to the RGMII _ TXEN pin, the RGMII _ TXCLK pin, the RGMII _ TXD3 pin, the RGMII _ TXD _ 3 pin, the MII _ RXD1 pin, the RGMII _ rxi _ TXD 8973784 pin, the RGMII _ rxi _ RXD _ RXCLK pin, the RGMII _ RXD0 pin, the RGMII _ RXD 827 pin, the RGMII _ TXD1 pin, the RGMII _ TXD 6380, and the RGMII.
Further, the USB connection module 1 provided in this embodiment is a USB connector, and the D-pin and the D + pin of the USB connection module 1 are connected to the D-pin and the D + pin of the USB extension module 2, respectively, so as to implement USB data communication connection between the external USB device and the USB extension module 2.
In other embodiments, the USB connection module 1 may also be a USB connection device such as a USB hub, and is connected to the data communication interface of the USB extension module 2, so as to implement expansion of multiple USB devices or USB-optical fiber conversion devices, thereby improving flexibility and expandability.
The USB equipment is accessed through the USB connecting module 1, USB data communication with the USB equipment is achieved, the Ethernet data received from the optical fiber Ethernet transceiving module 3 is converted into the USB data through the USB extension module 2, the received USB data is converted into the Ethernet data and then is sent to the optical fiber Ethernet transceiving module 3, transmission distance extension of the USB data is achieved, the photoelectric conversion module 4 is connected with the photoelectric conversion module 4 in the USB-optical fiber conversion device at the other end through communication optical fibers, photoelectric conversion between the Ethernet data is achieved, USB wiring extension is conducted between the two USB equipment through the optical fibers, wiring and cable withdrawal on the site are facilitated, use experience is optimized, and the USB equipment has the advantages of being reusable and capable of enduring different use environments. The plastic optical fiber Ethernet transceiver chip and the photoelectric conversion module 4 plastic optical fiber interface are designed, so that the plastic optical fiber is used as a transmission medium, and the plastic optical fiber can be prolonged through the plug socket, and the plastic optical fiber Ethernet transceiver chip has the advantages of convenience in wiring removal, reusability, capability of bearing severe use environments and the like. Meanwhile, the USB extension chip and the Ethernet transceiver chip are connected back to back, so that the USB transceiver chip has the advantages of simple structure, high reliability, low cost and small size.
A USB communication device, fig. 5 shows a block diagram of a USB communication device according to a second embodiment of the present disclosure, and referring to fig. 5, the USB communication device includes two USB-optical fiber conversion devices according to the first embodiment, where the two USB-optical fiber conversion devices are respectively connected to a USB connection module 1 to provide a USB interface, the USB interface is used for connecting with a USB device, and the photoelectric conversion modules 4 of the two USB-optical fiber conversion devices are connected to each other through a communication optical fiber.
Furthermore, the communication optical fiber provided by the embodiment is a plastic optical fiber, and the plastic optical fiber can be extended through the plug interface, that is, the plastic optical fiber can be sectionally arranged according to the arrangement requirement and the length of the plastic optical fiber, and the plastic optical fiber is butted through the plug interface.
It can be understood that, when the USB devices at two ends are performing long-distance data transmission, the USB device at one end receives USB data through the USB connection module 1, the USB connection module 1 sends the USB data to the USB extension module 2, after the USB extension module 2 converts the USB data into ethernet data, the ethernet data is sent to the optical fiber ethernet transceiver module 3, the optical fiber ethernet transceiver module 3 sends the ethernet data to the photoelectric conversion module 4, and the photoelectric conversion module 4 converts the ethernet data from an electrical signal to an optical signal and then sends the ethernet data to the photoelectric conversion module 4 at the other end through the communication optical fiber.
At the other end, after receiving the ethernet data, the photoelectric conversion module 4 converts the ethernet data from an optical signal into an electrical signal and sends the electrical signal to the optical fiber ethernet transceiving module 3, the optical fiber ethernet transceiving module 3 sends the ethernet data to the USB extension module 2, and the USB extension module 2 converts the ethernet data into USB data and sends the USB data to the USB device through the USB connection module 1, so as to realize long-distance data transmission between the USB devices at both ends.
The USB equipment is accessed through the USB connecting module 1, USB data communication with the USB equipment is achieved, the Ethernet data received from the optical fiber Ethernet transceiving module 3 is converted into the USB data through the USB extension module 2, the received USB data is converted into the Ethernet data and then is sent to the optical fiber Ethernet transceiving module 3, transmission distance extension of the USB data is achieved, the photoelectric conversion module 4 is connected with the photoelectric conversion module 4 in the USB-optical fiber conversion device at the other end through communication optical fibers, photoelectric conversion between the Ethernet data is achieved, USB wiring extension is conducted between the two USB equipment through the optical fibers, wiring and cable withdrawal on the site are facilitated, use experience is optimized, and the USB equipment has the advantages of being reusable and capable of enduring different use environments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (10)
1. A USB-fiber conversion device, comprising a USB connection module (1), a USB extension module (2), a fiber-optic ethernet transceiver module (3), and a photoelectric conversion module (4) that are communicatively connected, wherein:
the photoelectric conversion module (4) is connected to the optical fiber Ethernet transceiver module (3) and is used for accessing a communication optical fiber and realizing photoelectric conversion of Ethernet data between the optical fiber Ethernet transceiver module (3) and the communication optical fiber;
the USB connection module (1) is connected to the USB extension module (2) and used for providing a USB interface and realizing USB data transmission with the USB extension module (2);
The USB extension module (2) is connected to the optical fiber Ethernet transceiving module (3), the USB extension module (2) is used for realizing conversion between USB data and Ethernet data, and the optical fiber Ethernet transceiving module (3) is used for realizing data transmission between the USB extension module (2) and the photoelectric conversion module (4).
2. The USB-to-fiber conversion apparatus according to claim 1, wherein the optical-to-electrical conversion module (4) is connected to the fiber-optic ethernet transceiver module (3) through an OFE interface.
3. The USB-fiber converter according to claim 2, wherein the optical-to-electrical converter (4) comprises a data receiving module and a data transmitting module, the OFE _ RX _ P pin, the OFE _ RX _ N pin and the OFE _ IMON pin of the fiber-optic ethernet transceiver (3) are respectively connected to the RXP pin, the RXN pin and the IMON pin of the data receiving module, and the OFE _ TX _ P pin, the OFE _ TX _ N pin and the OFE _ TX _ EN pin of the fiber-optic ethernet transceiver (3) are respectively connected to the TXP pin, the TXN pin and the TX _ EN pin of the data transmitting module.
4. USB-fiber conversion device according to claim 1, characterized in that the USB extension module (2) is connected to the fiber-optic ethernet transceiver module (3) through RGMII interface, GMII interface or MII interface.
5. The USB-fiber conversion device according to claim 4, wherein the RGMII/MII _ RXEN pin, the RGMII/MII _ RXCLK pin, the RGMII/MII _ RXD3 pin, the RGMII/MII _ RXD2 pin, the RGMII/MII _ RXD1 pin, the RGMII/MII _ RXD0 pin, the RGMII/MII _ TXEN pin, the RGMII/MII _ RXCLK pin, the RGMII/MII _ TXD3 pin, the RGMII/MII _ TXD 7 pin, the MII/MII _ TXD1 pin, the RGMII/MII _ TXD0 pin of the fiber ethernet transceiver module (3) are connected to the RGMII _ txi _ clk pin, the RGMII _ RXCLK pin, the RGMII _ RXD _ txmii _ TXD3 pin, the RGMII _ rxi _ RXD 8932 pin, the RGMII _ txmii _ TXD3 pin, the RGMII _ RXD _ rxe pin, the RGMII _ TXD 8984 pin, the RGMII _ TXD _ rxe pin, the RGMII _ TXD3 pin, the RGMII _ TXD0 pin of the USB transceiver module (2), respectively.
6. The USB-to-fiber conversion apparatus according to claim 1, wherein the USB connection module (1) is a USB connector, and the D-pin and the D + pin of the USB extension module (2) are connected to the D-pin and the D + pin of the USB connection module (1), respectively.
7. USB-fiber conversion device according to claim 1, characterized in that the USB extension module (2) is configured with an interconnected USB related sublayer and PCS sublayer, the fiber ethernet transceiver module (3) is configured with an interconnected PCS sublayer and PMA sublayer, the opto-electronic conversion module (4) is configured with an interconnected PMD sublayer and fiber interface, wherein:
The USB connection module (1) is connected with a USB related sublayer of the USB extension module (2), a PCS sublayer of the USB extension module (2) is connected with a PCS sublayer of the optical fiber Ethernet transceiving module (3), and a PMA sublayer of the optical fiber Ethernet transceiving module (3) is connected with a PMD sublayer of the photoelectric conversion module (4).
8. The USB-to-fiber conversion apparatus according to claim 1, wherein the fiber-optic ethernet transceiver module (3) is a plastic fiber-optic ethernet transceiver chip, and the communication fiber is a plastic fiber.
9. A USB communication device, comprising two USB-to-fiber conversion devices according to any one of claims 1 to 8, wherein the two USB-to-fiber conversion devices are connected via a USB connection module (1) to provide a USB interface for connecting with a USB device, and the photoelectric conversion modules (4) of the two USB-to-fiber conversion devices are connected via a communication fiber.
10. The USB communication device of claim 9, wherein the communication fiber is a plastic fiber that can be extended through a socket.
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| CN202010489700.7A CN111858425B (en) | 2020-06-02 | 2020-06-02 | USB-optical fiber conversion device and USB communication equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872891A (en) * | 2021-10-25 | 2021-12-31 | 中国南方电网有限责任公司超高压输电公司大理局 | Photoelectric interface conversion device |
| CN115052022A (en) * | 2022-07-05 | 2022-09-13 | 北京茵沃汽车科技有限公司 | Adapter plate for vehicle-mounted Ethernet and communication system |
| CN115914419A (en) * | 2023-03-09 | 2023-04-04 | 灿芯半导体(成都)有限公司 | Working circuit for prolonging USB transmission distance through optical fiber |
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| CN115052022A (en) * | 2022-07-05 | 2022-09-13 | 北京茵沃汽车科技有限公司 | Adapter plate for vehicle-mounted Ethernet and communication system |
| CN115914419A (en) * | 2023-03-09 | 2023-04-04 | 灿芯半导体(成都)有限公司 | Working circuit for prolonging USB transmission distance through optical fiber |
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