Dual-backup optical fiber transmission equipment

Abstract

The utility model discloses a dual backup optical fiber transmission equipment, including optical transceiver, port, transmission line, switch, transmission module, optical transceiver collects four-way RS422 data and three-way gigabit Ethernet data, the port is opened at the front end of optical transceiver, the rear end of transmission line is connected to the port, switch is installed at the front end of transmission line, and transmission module is installed on the transmission line. The transmission module is installed in the switch. According to the utility model, the problem that seamless switching is difficult to realize through software control after optical fiber transmission is damaged is solved.

Description

Technical Field

[0001] The utility model relates to an optical fiber transmission device, in particular to a double backup optical fiber transmission device. Background Art

[0002] Nowadays, network applications are everywhere, and high-speed network connections are achieved through optical fibers. In application fields with high reliability requirements, such as military, medical, government agencies, etc., optical fiber transmission distance is long, but the transmission medium is easily damaged and the maintenance cost is high. Utility Model Content

[0003] The purpose of the utility model is to provide a dual-backup optical fiber transmission device to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a dual-backup optical fiber transmission device, including an optical terminal, a port, a transmission line, a switch, and a transmission module. The optical terminal collects 4 RS422 data and 3 Gigabit Ethernet data. The port is opened at the front end of the optical terminal, the rear end of the transmission line is connected to the port, the switch is installed at the front end of the transmission line, and the transmission module is installed inside the switch.

[0005] Based on the above technical solution, the transmission module includes a crystal head interface, a transformer, a transient voltage suppressor, a Gphy chip, a software modem A, a Gmac interface, a phy chip, a memory, a storage chip, a micro control unit, a universal asynchronous receiver and transmitter, a synchronous peripheral interface, a simplified media independent interface, an external signal interface chip, an external crystal oscillator, and a software modem B. The crystal head interface is installed at the front end of the switch, the transformer is installed at the crystal head interface, the transient voltage suppressor is connected to the transformer, the Gphy chip is connected to the transient voltage suppressor through the switch, the software modem A is installed inside the switch, the Gmac interface is opened at the side end of the switch through the software modem, the phy chip is installed at the Gmac interface for signal conversion, the memory is installed inside the switch, the storage chip is connected to the memory, the micro control unit is connected to the memory through the switch, the universal asynchronous receiver and transmitter is installed in the micro control unit, the synchronous peripheral interface is installed in the switch through the micro control unit, the simplified media independent interface is installed in the switch through the micro control unit, the external signal interface chip is installed in the micro control unit, the external crystal oscillator is installed in the micro control unit, and the software modem B is installed in the micro control unit.

[0006] Based on the above technical solution, the optical terminal is connected to the micro control unit through a transmission line, and the micro control unit configures the switching of two Serdes electrical signals of the switch through the control interface to achieve seamless transmission of two optical fibers.

[0007] Compared with the prior art, the utility model has the following advantages: the utility model is connected to a switch with a transmission module through an optical terminal, and when the micro control unit receives the signal transmitted by the optical terminal, it configures the switch to switch two Serdes electrical signals through the control interface, thereby realizing seamless transmission of two optical fibers. When one optical fiber has a problem, the other fiber can be seamlessly switched. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0009] Figure 2 This is the principle diagram of the transmission module of the utility model.

[0010] In the figure: 1. optical terminal, 2. port, 3. transmission line, 4. switch, 5. transmission module, 6. crystal head interface, 7. transformer, 8. transient voltage suppressor, 9. Gphy chip, 10. software modem A, 11. Gmac interface, 12. phy chip, 13. memory, 14. storage chip, 15. micro control unit, 16. external signal interface chip, 17. synchronous peripheral interface, 18. simplified media independent interface, 19. external signal interface chip, 20. external crystal oscillator, 21. software modem B. DETAILED DESCRIPTION

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0012] like Figures 1 to 2 As shown, a dual-backup optical fiber transmission device includes an optical terminal 1, a port 2, a transmission line 3, a switch 4, and a transmission module 5. The optical terminal 1 collects 4-way RS422 data and 3-way Gigabit Ethernet data. The port 2 is opened at the front end of the optical terminal 1, the rear end of the transmission line 3 is connected to the port 2, the switch 4 is installed at the front end of the transmission line 3, and the transmission module 5 is installed inside the switch 4.

[0013] The transmission module 5 includes a crystal head interface 6, a transformer 7, a transient voltage suppressor 8, a Gphy chip 9, a software modem A10, a Gmac interface 11, a phy chip 12, a memory 13, a storage chip 14, a micro control unit 15, a universal asynchronous receiver and transmitter 16, a synchronous peripheral interface 17, a simplified media independent interface 18, an external signal interface chip 19, an external crystal oscillator 20, and a software modem B21. The crystal head interface 6 is installed at the front end of the switch 4, the transformer 7 is installed at the crystal head interface 6, the transient voltage suppressor 8 is connected to the transformer 7, the Gphy chip 9 is connected to the transient voltage suppressor 8 through the switch 4, the software modem A10 is installed inside the switch 4, and the Gm The ac interface 11 is opened on the side of the switch 4 through the software modem 10, the phy chip 12 is installed on the Gmac interface 11 for signal conversion, the memory 13 is installed inside the switch 4, the storage chip 14 is connected to the memory 13, the micro control unit 15 is connected to the memory 13 through the switch 4, the universal asynchronous receiver and transmitter 16 is installed in the micro control unit 15, the synchronous peripheral interface 17 is installed on the switch 4 through the micro control unit 15, the simplified media independent interface 18 is installed on the switch 4 through the micro control unit 15, the external signal interface chip 19 is installed on the micro control unit 15, the external crystal oscillator 20 is installed on the micro control unit 15, and the software modem B21 is installed on the micro control unit 15.

[0014] The optical terminal 1 is connected to the micro control unit 15 via the transmission line 3. The micro control unit 15 configures the switching of two Serdes electrical signals of the switch 4 via the control interface to achieve seamless transmission of the two optical fibers.

[0015] The working principle of the utility model is as follows: the optical terminal 1 collects 4 channels of RS422 data and 3 channels of Gigabit Ethernet data, and converts the collected RS422 data into network data through the micro control unit 15, and exchanges data with the switch 4, and then converts it into a Serdes electrical signal through the Gphy chip 9 and the phy chip 12, and then converts it into an optical signal through the optical fiber transceiver for transmission. The micro control unit 15 configures the switching of the two channels of Serdes electrical signals of the switch 4 through the control interface to achieve seamless transmission of the two optical fibers, and if there is a problem with one transmission link, the other can be seamlessly switched. The receiving end and the transmitting end use the same hardware and software, and the optical fiber interface, RS422 interface and Gigabit Ethernet interface are all full-duplex transmission modes, which can achieve long-distance transmission.

[0016] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A dual-backup optical fiber transmission device, comprising an optical terminal (1), a port (2), a transmission line (3), a switch (4), and a transmission module (5), characterized in that: The optical terminal (1) collects 4 channels of RS422 data and 3 channels of Gigabit Ethernet data; the port (2) is opened at the front end of the optical terminal (1); the rear end of the transmission line (3) is connected to the port (2); the switch (4) is installed at the front end of the transmission line (3); and the transmission module (5) is installed inside the switch (4).

2. A dual backup optical fiber transmission device according to claim 1, characterized in that: The transmission module (5) comprises a crystal head interface (6), a transformer (7), a transient voltage suppressor (8), a Gphy chip (9), a software modem A (10), a Gmac interface (11), a phy chip (12), a memory (13), a storage chip (14), a micro control unit (15), a universal asynchronous receiver / transmitter (16), a synchronous peripheral interface (17), a simplified media independent interface (18), an external signal interface chip (19), an external crystal oscillator (20), and a software modem B (21). The crystal head interface (6) is installed at the front end of the switch (4), the transformer (7) is installed at the crystal head interface (6), the transient voltage suppressor (8) is connected to the transformer (7), the Gphy chip (9) is connected to the transient voltage suppressor (8) through the switch (4), the software modem A (10) is installed inside the switch (4), and the Gphy chip (9) is connected to the transient voltage suppressor (8) through the switch (4). The mac interface (11) is opened on the side of the switch (4) through the software modem A (10), the phy chip (12) is installed on the Gmac interface (11) for signal conversion, the memory (13) is installed inside the switch (4), the storage chip (14) is connected to the memory (13), the micro control unit (15) is connected to the memory (13) through the switch (4), the universal asynchronous receiver and transmitter (16) is installed on the micro control unit (15), the synchronous peripheral interface (17) is installed on the switch (4) through the micro control unit (15), the simplified media independent interface (18) is installed on the switch (4) through the micro control unit (15), the external signal interface chip (19) is installed on the micro control unit (15), the external crystal oscillator (20) is installed on the micro control unit (15), and the software modem B (21) is installed on the micro control unit (15).

3. The dual backup optical fiber transmission device according to claim 1, characterized in that: The optical terminal (1) is connected to the micro control unit (15) via a transmission line (3); the micro control unit (15) configures the switching of two Serdes electrical signals of the switch (4) via a control interface, thereby achieving seamless transmission of the two optical fibers.

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