Switch with optical bypass function

Abstract

The utility model relates to a switch with an optical bypass function, in particular to the technical field of bypass optical fiber switch control circuits, which comprises an optical signal switching unit and a control unit. The first optical fiber and the second optical fiber are respectively connected to different external optical fiber switches, and the control unit controls the optical signal switching unit to conduct optical signals between the first optical fiber and the third optical fiber and conduct optical signals between the second optical fiber and the fourth optical fiber after detecting that the network switching unit is started. Otherwise, the optical signal switching unit is controlled to perform optical signal conduction on the first optical fiber and the second optical fiber; therefore, the optical signals on the first optical fiber and the second optical fiber are accessed to the network switching unit after the network switching unit is started, the network switching unit realizes data exchange with different external optical fiber switches, and otherwise, the first optical fiber and the second optical fiber are subjected to optical signal conduction, so that data do not pass through the network switching unit, and the data exchange efficiency is improved. Overall work of the network is not affected, use is convenient, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of bypass optical fiber switch control circuit, and more specifically to a switch with optical bypass function. Background Art

[0002] If an optical bypass switch receives an optical signal when it is in an abnormal working state, it will affect the data processing of the entire network. It is necessary to prohibit the optical signal from accessing the switch and connect at least two optical fiber signals connected to the switch so that the data does not pass through the switch and does not affect the overall operation of the network. Therefore, a switch with an optical bypass function is urgently needed to make up for the deficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects of the prior art, a switch with an optical bypass function is provided, which connects the two input optical signals to the network switching unit after the network switching unit is started up, otherwise connects the two input optical signals without passing through the network switching unit, and does not affect the overall operation of the network.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A switch with an optical bypass function is constructed, comprising an optical signal switching unit and a control unit; wherein the optical signal switching unit inputs a first optical fiber and a second optical fiber and outputs a third optical fiber and a fourth optical fiber; the first optical fiber and the second optical fiber are respectively connected to different external optical fiber switches;

[0006] The third optical fiber and the fourth optical fiber are both connected to a network switching unit, and the control unit is also connected to the network switching unit;

[0007] After detecting that the network switching unit has been started, the control unit controls the optical signal switching unit to conduct optical signals between the first optical fiber and the third optical fiber and between the second optical fiber and the fourth optical fiber; otherwise, the control unit controls the optical signal switching unit to conduct optical signals between the first optical fiber and the second optical fiber.

[0008] The switch with optical bypass function described in the utility model, wherein the optical signal switching unit includes a plurality of optical fiber switches, the optical fiber switches are provided with a first optical fiber port, a second optical fiber port and a third optical fiber port, and the first optical fiber port of the optical fiber switch is connected to the second optical fiber port or the third optical fiber port for optical signal conduction;

[0009] The plurality of fiber optic switches at least include a first fiber optic switch and a second fiber optic switch, wherein the first fiber optic port of the first fiber optic switch is used to insert the first fiber optic, and the first fiber optic port of the second fiber optic switch is used to insert the second fiber optic;

[0010] The third fiber optic port of the first fiber optic switch is connected to the second fiber optic port of the second fiber optic switch, the second fiber optic port of the first fiber optic switch is plugged with the third fiber optic to connect to the network switching unit, and the third fiber optic port of the second fiber optic switch is plugged with the fourth fiber optic to connect to the network switching unit.

[0011] The switch with optical bypass function described in the utility model, wherein a plurality of the optical fiber switches are connected to the control unit by using RS232 bus.

[0012] In the switch with optical bypass function described in the utility model, the control unit is connected with the network switching unit by using an I2C bus.

[0013] The switch with optical bypass function described in the utility model, wherein the control unit includes: a single chip microcomputer, an RS232 chip and a level converter;

[0014] The P3.0, P3.1, P1.7 and P1.6 terminals of the single-chip microcomputer are connected one-to-one with the ROUT1, DIN1, DIN2 and ROUT2 terminals of the RS232 chip; the DOUT1 and RIN1 terminals of the RS232 chip are connected to the first fiber optic switch, and the DOUT2 and RIN2 terminals are connected to the second fiber optic switch;

[0015] The P3.2 terminal and the P3.3 terminal of the single-chip microcomputer are connected one-to-one with the SCL2 terminal and the SDA2 terminal of the level converter, the P3.2 terminal of the single-chip microcomputer is connected with a first resistor and the P3.3 terminal is connected with a second resistor, the EN terminal of the single-chip microcomputer is connected with the VREF2 terminal and is connected with a third resistor, and the other ends of the first resistor, the second resistor and the third resistor are all connected to the positive electrode of the 5V DC power;

[0016] The SCL1 and SDA1 terminals of the single-chip microcomputer are both connected to the network switching unit, the SCL1 terminal of the single-chip microcomputer is connected to a fourth resistor and the SDA1 terminal is connected to a fifth resistor, the other ends of the fourth resistor and the fifth resistor and the VREF1 terminal of the level converter are all connected to the positive pole of the 3.3V power supply.

[0017] The switch with optical bypass function described in the utility model, wherein the network switching unit includes: an Ethernet transceiver and a memory and a first optical fiber module connector, a second optical fiber module connector, a first optical fiber module, and a second optical fiber module;

[0018] The first optical fiber module is plugged into the first optical fiber module connector, the second optical fiber module is plugged into the second optical fiber module connector, the end of the third optical fiber away from the optical signal switching unit is plugged into the first optical fiber module, and the end of the fourth optical fiber away from the optical signal switching unit is plugged into the second optical fiber module;

[0019] The SDA terminal of the Ethernet transceiver is connected to the SDA1 terminal of the level converter and the SCL terminal is connected to the SCL1 terminal of the level converter, the V33IN terminal of the Ethernet transceiver is connected to the positive electrode of the 3.3V power supply and the EP terminal is grounded;

[0020] The VCC terminal of the memory is connected to the positive electrode of the 3.3V power supply and the WC# terminal is connected to a sixth resistor, and the other end of the sixth resistor is grounded;

[0021] The SCL end of the memory is connected to a seventh resistor and the SDA end is connected to an eighth resistor, and the other ends of the seventh resistor and the eighth resistor are both connected to the positive electrode of the 3.3V power supply; the SCL end of the memory is also connected to the SCL end of the Ethernet transceiver and the SDA end is connected to the SDA end of the Ethernet transceiver;

[0022] Pins 12, 13, 18 and 19 of the first optical fiber module connector are connected one-to-one with the RXIN6, RXIP6, TXOP6 and TXON6 terminals of the Ethernet transceiver in sequence;

[0023] Pins 12, 13, 18 and 19 of the second optical fiber module connector are connected one-to-one with the RXIN7, RXIP7, TXOP7 and TXON7 terminals of the Ethernet transceiver in sequence;

[0024] The 16 pins of the first fiber optic module connector and the second fiber optic module connector are both connected to the positive pole of the 3.3V power supply, and pins 1, 3, 6, 9, 10, 11, 14, 17 and 20 are all grounded.

[0025] The switch with optical bypass function described in the utility model, wherein the Ethernet transceiver is also connected to an indicator light unit, a power-on self-reset unit, a crystal oscillator, a DC socket and a TYPE-C socket and a power supply unit.

[0026] The beneficial effect of the utility model is that the first optical fiber and the second optical fiber are respectively connected to different external optical fiber switches, and the control unit controls the optical signal switching unit to conduct optical signals between the first optical fiber and the third optical fiber and between the second optical fiber and the fourth optical fiber after detecting that the network switching unit is started up, and vice versa, the optical signal switching unit is controlled to conduct optical signals between the first optical fiber and the second optical fiber; thereby, after the network switching unit is started up, the optical signals on the first optical fiber and the second optical fiber are connected to the network switching unit, and the network switching unit realizes data exchange with different external optical fiber switches, and vice versa, the first optical fiber and the second optical fiber are conducted optically, so that data does not pass through the network switching unit, does not affect the overall operation of the network, is easy to use, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0028] Figure 1 This is a circuit block diagram of an optical signal switching unit of a switch with an optical bypass function in a preferred embodiment of the utility model in a first state;

[0029] Figure 2 It is a circuit block diagram of an optical signal switching unit of a switch with an optical bypass function in a preferred embodiment of the utility model in a second state;

[0030] Figure 3 It is a circuit schematic diagram of a control unit of a switch with an optical bypass function according to a preferred embodiment of the utility model;

[0031] Figure 4 This is a circuit schematic diagram of the Ethernet transceiver of a switch with an optical bypass function and the network label connection of its related ports in a preferred embodiment of the utility model;

[0032] Figure 5 It is a circuit schematic diagram of a memory of a switch with an optical bypass function according to a preferred embodiment of the utility model;

[0033] Figure 6 This is a circuit schematic diagram of a first optical fiber module connector and a second optical fiber module connector of a switch with an optical bypass function in a preferred embodiment of the utility model;

[0034] Figure 7 This is a circuit schematic diagram of an indicator light unit of a switch with an optical bypass function in a preferred embodiment of the utility model;

[0035] Figure 8 This is a circuit diagram of a power-on self-reset unit of a switch with an optical bypass function in a preferred embodiment of the utility model;

[0036] Fig. 9 This is a circuit schematic diagram of a crystal oscillator of a switch with an optical bypass function in a preferred embodiment of the utility model;

[0037] Fig.10 This is a circuit schematic diagram of a DC female socket of a switch with an optical bypass function in a preferred embodiment of the utility model;

[0038] Fig.11 This is a circuit schematic diagram of a TYPE-C female socket of a switch with an optical bypass function in a preferred embodiment of the utility model;

[0039] Fig.12 The utility model is a circuit diagram of a power supply unit of a switch with an optical bypass function according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0041] The switch with optical bypass function in the preferred embodiment of the utility model is as follows Figure 1 See also Figures 2 to 12 ; including an optical signal switching unit 100 and a control unit 200; the optical signal switching unit 100 inputs a first optical fiber 110 and a second optical fiber 120 and outputs a third optical fiber 130 and a fourth optical fiber 140; the first optical fiber 110 and the second optical fiber 120 are respectively connected to different external optical fiber switches 20;

[0042] The third optical fiber 130 and the fourth optical fiber 140 are both connected to the network switching unit 300, and the control unit 200 is also connected to the network switching unit 300;

[0043] After the control unit 200 detects that the network switching unit 300 has been started, it controls the optical signal switching unit 100 to conduct optical signals between the first optical fiber 110 and the third optical fiber 130 and between the second optical fiber 120 and the fourth optical fiber 140 (i.e., the optical signal switching unit 100 is in the first state); otherwise, it controls the optical signal switching unit 100 to conduct optical signals between the first optical fiber 110 and the second optical fiber 120 (i.e., the optical signal switching unit 100 is in the second state);

[0044] The first optical fiber 110 and the second optical fiber 120 are respectively connected to different external optical fiber switches 20. After the control unit 200 detects that the network switching unit 300 is started up, it controls the optical signal switching unit 100 to conduct optical signals between the first optical fiber 110 and the third optical fiber 130 and between the second optical fiber 120 and the fourth optical fiber 140. Otherwise, it controls the optical signal switching unit 100 to conduct optical signals between the first optical fiber 110 and the second optical fiber 120. Thus, after the network switching unit 300 is started up, the optical signals on the first optical fiber 110 and the second optical fiber 120 are connected to the network switching unit 300, and the network switching unit 300 realizes data exchange with different external optical fiber switches 20. Otherwise, the first optical fiber 110 and the second optical fiber 120 are conducted to conduct optical signals, so that data does not pass through the network switching unit 300, does not affect the overall operation of the network, is easy to use, and has low cost.

[0045] like Figure 1 and Figure 2 As shown, the optical signal switching unit 100 includes a plurality of optical fiber switches (not shown in the figure), the optical fiber switch is provided with a first optical fiber port, a second optical fiber port and a third optical fiber port, and the first optical fiber port of the optical fiber switch is connected to the second optical fiber port or the third optical fiber port for optical signal conduction;

[0046] The plurality of fiber optic switches at least include a first fiber optic switch and a second fiber optic switch, wherein the first fiber optic port of the first fiber optic switch is used to insert the first fiber optic 110, and the first fiber optic port of the second fiber optic switch is used to insert the second fiber optic 120;

[0047] The third fiber optic port of the first fiber optic switch is connected to the second fiber optic port of the second fiber optic switch, and is connected through a fifth optical fiber (not shown in the figure). The second fiber optic port of the first fiber optic switch is plugged with a third optical fiber 130 and connected to the network switching unit 300, and the third fiber optic port of the second fiber optic switch is plugged with a fourth optical fiber 140 and connected to the network switching unit 300; wherein, the fiber optic switch is a customized product and works on a mechanical principle.

[0048] like Figure 1 and Figure 2As shown, multiple fiber optic switches are connected to the control unit 200 using RS232 bus for easy control.

[0049] like Figure 1 and Figure 2 As shown, the control unit 200 is connected to the network switching unit 300 using the I2C bus, so that the Ethernet transceiver U1 can perform one-to-many communication with the memory U5 and the single-chip microcomputer U7 through the I2C bus, thereby realizing port multiplexing.

[0050] like Figures 1 to 3 As shown, the control unit 200 includes: a single chip microcomputer U7, an RS232 chip U2 and a level converter U8;

[0051] The P3.0, P3.1, P1.7 and P1.6 terminals of the single-chip computer U7 are connected one-to-one with the ROUT1, DIN1, DIN2 and ROUT2 terminals of the RS232 chip U2; the DOUT1 and RIN1 terminals of the RS232 chip U2 are both connected to the first optical fiber switch, and the DOUT2 and RIN2 terminals are both connected to the second optical fiber switch;

[0052] The P3.2 terminal and the P3.3 terminal of the single-chip computer U7 are connected one-to-one with the SCL2 terminal and the SDA2 terminal of the level converter U8, the P3.2 terminal of the single-chip computer U7 is connected with the first resistor R42 and the P3.3 terminal is connected with the second resistor R43, the EN terminal of the single-chip computer U7 is connected with the VREF2 terminal and is connected with the third resistor R54, and the other ends of the first resistor R42, the second resistor R43 and the third resistor R54 are all connected to the positive electrode of the 5V DC power;

[0053] The SCL1 and SDA1 terminals of the single-chip microcomputer U7 are both connected to the network switching unit 300, the SCL1 terminal of the single-chip microcomputer U7 is connected to the fourth resistor R44 and the SDA1 terminal is connected to the fifth resistor R53, the other ends of the fourth resistor R44 and the fifth resistor R53 and the VREF1 terminal of the level converter U8 are all connected to the positive pole of the 3.3V power supply; the RS232 chip U2 is used as the TTL to RS232 bus communication protocol of the single-chip microcomputer U7, and the level converter U8 is used for the 5VI2C bus of the single-chip microcomputer U7 to communicate with the 3.3VI2C bus of the Ethernet controller.

[0054] like Figures 3 to 6 As shown, the network switching unit 300 includes: an Ethernet transceiver U1 and a memory U5 and a first optical fiber module connector CN1, a second optical fiber module connector CN2, a first optical fiber module (not shown in the figure), and a second optical fiber module (not shown in the figure); wherein the optical fiber module is an SFP optical fiber module;

[0055] The first optical fiber module is plugged into the first optical fiber module connector CN1, the second optical fiber module is plugged into the second optical fiber module connector CN2, the end of the third optical fiber 130 away from the optical signal switching unit 100 is plugged into the first optical fiber module, and the end of the fourth optical fiber 140 away from the optical signal switching unit 100 is plugged into the second optical fiber module;

[0056] The SDA terminal of the Ethernet transceiver U1 is connected to the SDA1 terminal of the level converter U8 and the SCL terminal is connected to the SCL1 terminal of the level converter U8, the V33IN terminal of the Ethernet transceiver U1 is connected to the positive electrode of the 3.3V power supply and the EP terminal is grounded;

[0057] The VCC terminal of the memory U5 is connected to the positive electrode of the 3.3V power supply and the WC# terminal is connected to a sixth resistor R67, and the other end of the sixth resistor R67 is grounded;

[0058] The SCL end of the memory U5 is connected to the seventh resistor R65 and the SDA end is connected to the eighth resistor R62, and the other ends of the seventh resistor R65 and the eighth resistor R62 are both connected to the positive electrode of the 3.3V power supply; the SCL end of the memory U5 is also connected to the SCL end of the Ethernet transceiver U1 and the SDA end is connected to the SDA end of the Ethernet transceiver U1;

[0059] Pins 12, 13, 18 and 19 of the first optical fiber module connector CN1 are connected one-to-one with the RXIN6, RXIP6, TXOP6 and TXON6 terminals of the Ethernet transceiver U1 in sequence;

[0060] Pins 12, 13, 18 and 19 of the second optical fiber module connector CN2 are connected one-to-one with the RXIN7, RXIP7, TXOP7 and TXON7 terminals of the Ethernet transceiver U1 in sequence;

[0061] The 16 pins of the first fiber optic module connector CN1 and the second fiber optic module connector CN2 are all connected to the positive pole of the 3.3V power supply, and pins 1, 3, 6, 9, 10, 11, 14, 17 and 20 are all grounded; the fiber optic module connector is used to facilitate replacement / adaptation of the fiber optic module.

[0062] like Figure 4 As shown in the figure, the Ethernet transceiver U1 is also connected to an indicator light unit 400, a power-on self-reset unit 500, a crystal oscillator Y1, a DC socket DC1, a TYPE-C socket USB1 and a power supply unit 600;

[0063] Among them, the indicator light unit 400 displays the working status of the first optical fiber module and the second optical fiber module, the power-on self-reset unit 500 performs power-on self-reset on the Ethernet transceiver U1, the crystal oscillator Y1 increases the reference clock signal for the Ethernet transceiver U1, the DC socket DC1 or the TYPE-C socket USB1 is used as a 5V power input, and the power supply unit 600 is used to step down the 5V power supply to a 3.3V power supply.

[0064] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A switch with an optical bypass function, comprising an optical signal switching unit and a control unit; characterized in that: The optical signal switching unit inputs the first optical fiber and the second optical fiber and outputs the third optical fiber and the fourth optical fiber; the first optical fiber and the second optical fiber are respectively connected to different external optical fiber switches; The third optical fiber and the fourth optical fiber are both connected to a network switching unit, and the control unit is also connected to the network switching unit; After detecting that the network switching unit has been started, the control unit controls the optical signal switching unit to conduct optical signals between the first optical fiber and the third optical fiber and between the second optical fiber and the fourth optical fiber; otherwise, the control unit controls the optical signal switching unit to conduct optical signals between the first optical fiber and the second optical fiber.

2. The switch with optical bypass function according to claim 1, characterized in that: The optical signal switching unit includes a plurality of optical fiber switches, each of which is provided with a first optical fiber port, a second optical fiber port and a third optical fiber port, and the first optical fiber port of the optical fiber switch is connected to the second optical fiber port or the third optical fiber port for optical signal conduction; The plurality of fiber optic switches at least include a first fiber optic switch and a second fiber optic switch, wherein the first fiber optic port of the first fiber optic switch is used to insert the first fiber optic, and the first fiber optic port of the second fiber optic switch is used to insert the second fiber optic; The third fiber optic port of the first fiber optic switch is connected to the second fiber optic port of the second fiber optic switch, the second fiber optic port of the first fiber optic switch is plugged with the third fiber optic to connect to the network switching unit, and the third fiber optic port of the second fiber optic switch is plugged with the fourth fiber optic to connect to the network switching unit.

3. The switch with optical bypass function according to claim 2, characterized in that: The plurality of fiber optic switches are connected to the control unit via an RS232 bus.

4. The switch with optical bypass function according to claim 1, characterized in that: The control unit is connected to the network switching unit using an I2C bus.

5. The switch with optical bypass function according to claim 2, characterized in that: The control unit comprises: a single chip microcomputer, an RS232 chip and a level converter; The P3.0, P3.1, P1.7 and P1.6 terminals of the single-chip microcomputer are connected one-to-one with the ROUT1, DIN1, DIN2 and ROUT2 terminals of the RS232 chip; the DOUT1 and RIN1 terminals of the RS232 chip are connected to the first fiber optic switch, and the DOUT2 and RIN2 terminals are connected to the second fiber optic switch; The P3.2 terminal and the P3.3 terminal of the single-chip microcomputer are connected one-to-one with the SCL2 terminal and the SDA2 terminal of the level converter, the P3.2 terminal of the single-chip microcomputer is connected with a first resistor and the P3.3 terminal is connected with a second resistor, the EN terminal of the single-chip microcomputer is connected with the VREF2 terminal and is connected with a third resistor, and the other ends of the first resistor, the second resistor and the third resistor are all connected to the positive electrode of the 5V DC power; The SCL1 and SDA1 terminals of the single-chip microcomputer are both connected to the network switching unit, the SCL1 terminal of the single-chip microcomputer is connected to a fourth resistor and the SDA1 terminal is connected to a fifth resistor, the other ends of the fourth resistor and the fifth resistor and the VREF1 terminal of the level converter are all connected to the positive pole of the 3.3V power supply.

6. The switch with optical bypass function according to claim 5, characterized in that: The network switching unit comprises: an Ethernet transceiver and a memory and a first optical fiber module connector, a second optical fiber module connector, a first optical fiber module, and a second optical fiber module; The first optical fiber module is plugged into the first optical fiber module connector, the second optical fiber module is plugged into the second optical fiber module connector, the end of the third optical fiber away from the optical signal switching unit is plugged into the first optical fiber module, and the end of the fourth optical fiber away from the optical signal switching unit is plugged into the second optical fiber module; The SDA terminal of the Ethernet transceiver is connected to the SDA1 terminal of the level converter and the SCL terminal is connected to the SCL1 terminal of the level converter, the V33IN terminal of the Ethernet transceiver is connected to the positive electrode of the 3.3V power supply and the EP terminal is grounded; The VCC terminal of the memory is connected to the positive electrode of the 3.3V power supply and the WC# terminal is connected to a sixth resistor, and the other end of the sixth resistor is grounded; The SCL end of the memory is connected to a seventh resistor and the SDA end is connected to an eighth resistor, and the other ends of the seventh resistor and the eighth resistor are both connected to the positive electrode of the 3.3V power supply; the SCL end of the memory is also connected to the SCL end of the Ethernet transceiver and the SDA end is connected to the SDA end of the Ethernet transceiver; Pins 12, 13, 18 and 19 of the first optical fiber module connector are connected one-to-one with the RXIN6, RXIP6, TXOP6 and TXON6 terminals of the Ethernet transceiver in sequence; Pins 12, 13, 18 and 19 of the second optical fiber module connector are connected one-to-one with the RXIN7, RXIP7, TXOP7 and TXON7 terminals of the Ethernet transceiver in sequence; The 16 pins of the first fiber optic module connector and the second fiber optic module connector are both connected to the positive pole of the 3.3V power supply, and pins 1, 3, 6, 9, 10, 11, 14, 17 and 20 are all grounded.

7. The switch with optical bypass function according to claim 6, characterized in that: The Ethernet transceiver is also connected to an indicator light unit, a power-on self-reset unit, a crystal oscillator, a DC socket, a TYPE-C socket and a power supply unit.

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