CN113131998B - Optical switching matrix device of security level multi-node communication network - Google Patents

Optical switching matrix device of security level multi-node communication network Download PDF

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CN113131998B
CN113131998B CN201911396861.5A CN201911396861A CN113131998B CN 113131998 B CN113131998 B CN 113131998B CN 201911396861 A CN201911396861 A CN 201911396861A CN 113131998 B CN113131998 B CN 113131998B
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optical
switching matrix
optical fiber
optical switch
matrix device
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CN113131998A (en
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冀苗苗
刘志凯
魏涛涛
付磊
梁成华
王冬
胡义武
蒲永杰
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China Nuclear Control System Engineering Co ltd
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China Nuclear Control System Engineering Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03—Arrangements for fault recovery
    • H04B10/038—Arrangements for fault recovery using bypasses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/275—Ring-type networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers

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  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Optical Communication System (AREA)

Abstract

The invention belongs to the technical field of security level DCS communication matching tools, and particularly relates to an optical switching matrix device of a security level multi-node communication network. The optical switching matrix device comprises an optical switching matrix device, a power supply module, an optical module optical fiber adapter and an optical fiber; the optical switching matrix device consists of two Non-holding (Non-Latching) micro-mechanical (MEMS) optical switches 5-1 and 5-2 according to a certain fiber coiling mode; the invention provides an optical switching matrix device of a security level multi-node communication network, which is safe and reliable to use. The switching mode is flexible, the structure is simple, the use is convenient, the direct cooperation with the multi-node communication module is realized, the plug and play is realized, the fiber coiling and the complicated networking link are eliminated, the communication efficiency is greatly improved, and the reliability and the usability of the product are improved. The fault-tolerant design of communication is realized on the optical fiber path of the nuclear safety level multi-node communication network.

Description

Optical switching matrix device of security level multi-node communication network
Technical Field
The invention belongs to the technical field of security level DCS communication matching tools, and particularly relates to an optical switching matrix device of a security level multi-node communication network.
Background
The optical fiber communication technology is a communication technology which is increasingly widely used in the industrial field at present, the node design, management and switching of an optical communication network need more reasonable control, and an optical switch is used as a functional device for switching an optical path, can realize dynamic optical path management and fault protection of an optical network, and has great significance for solving the problem of optical path switching and control in the current complex network and carrying out flexible network configuration.
Currently, there are many types of optical switches, such as micro-mechanical optical switches, electro-optical effect switches, thermo-optical switches, magneto-optical switches, and the like. The most widely used optical switch in the field of industrial communications is the micro-mechanical (MEMS) optical switch. In the field of DCS communication, a general optical switch is mainly used to solve the problem of switching of communication paths and the node bypass function of a communication module during transmission of large data volume data between stations in the DCS. However, in practical use, if the optical switch is directly used in a control system, one communication network has at least dozens of communication nodes, each communication node needs at least two optical switches to switch, one optical switch has at least four bare fibers, the problem of fiber coiling and assembly of the optical switch is always a difficult point, because the optical fiber is different from a common copper wire, the optical fiber has a certain bending radius, and is easily damaged or broken due to improper bending, the technological requirement on the fiber coiling is higher, if the fiber coiling is too rough, the optical switch can damage the optical fiber in the plugging and unplugging process, and the use effect greatly reduces the reliability of optical fiber communication.
Therefore, the conventional optical switch is difficult to be directly used in a communication node, and cannot meet the requirement of path switching of large data volume of a large nuclear power communication node. Aiming at the problem of low reliability of multi-node communication between nuclear power safety level DCS system stations, the invention provides a novel bypass switching mode, namely, on the basis of a multi-node communication network, an optical switching matrix device is developed according to a certain networking and fiber coiling technology by utilizing the principle of optical switch technology and adjacent node bypass switching. The optical switching matrix device directly integrates two 2x2 optical switches and bare fibers in a square box, is matched with a certain circuit, and directly changes a transmission path to skip the node when detecting a node fault or a bypass request signal. The method avoids the fiber winding and the complicated networking link, greatly improves the communication efficiency, and improves the reliability and the usability of the product.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide an optical switching matrix device for a security-level multi-node communication network, which ensures that the device is reliable, can be plug-and-play, and can detect a fault and automatically bypass without affecting other communication nodes.
The technical scheme of the invention is as follows:
an optical switching matrix device of a security level multi-node communication network comprises an optical switching matrix device, a power supply module, an optical module optical fiber adapter and optical fibers;
the optical switching matrix device consists of two Non-holding (Non-Latching) micro-mechanical (MEMS) optical switches 5-1 and 5-2 according to a certain fiber coiling mode;
at the end of the optical fiber adapter and the optical fiber adapter, connecting the optical fiber 5-1-1 corresponding to the optical switch 5-1 with the RX of the optical fiber adapter, connecting the optical fiber 5-2-3 corresponding to the optical switch 5-2 with the TX of the optical fiber adapter, connecting the optical fiber 5-2-1 corresponding to the optical switch 5-2 with the RX of the optical fiber adapter (10), and connecting the optical fiber 5-1-3 corresponding to the optical switch 5-1 with the TX of the optical fiber adapter; at the end of the optical module and the optical module, the optical fiber 5-1-2 corresponding to the optical switch 5-1 is connected with the RX of the optical module, the optical fiber 5-2-4 corresponding to the optical switch 5-2 is connected with the TX of the optical module, the optical fiber 5-2-2 corresponding to the optical switch 5-2 is connected with the RX of the optical module, the optical fiber 5-1-4 corresponding to the optical switch 5-1 is connected with the RX of the optical module, and the electrical pin corresponding to the optical switch 5-1 and the optical switch 5-2 is connected with the power supply module.
The electrical pins corresponding to the optical switching matrix device, namely the electrical pins corresponding to the optical switch 5-1 and the optical switch 5-2, are connected with the power supply module;
the power supply module and the electrical pins of the optical switching matrix device are respectively power supply +, V +, digital ground, GND, protective ground, PE1, PE2, PE3, PE4, state output pins of optical switches 5-2 and 5-1, state control input pins of SW2State, SW1State, state control input pins of optical switches 5-2, 2B and 2A, and State control input pins of optical switches 5-1, 1B and 1A.
The optical switching matrix device can be directly connected with a power supply module through a safety connector in a direct-plug mode, pins + V and GND of the optical switching matrix device are respectively connected with +5V and DGND of a power supply for power supply, protective grounds PE1, PE2 and PE4 are connected with a protective ground, state control input pins 2A and 2B of an optical switch 5-2 are respectively connected with +5V _OPand DGND, state control input pins 1A and 1B of the optical switch 5-1 are respectively connected with +5V _OPand DGND, a State output pin SW2State and a resistor R62 of the optical switch 5-2 are connected, the other end of R62 is connected with an LED4, the other end of the LED4 is connected with a digital DGND, a State output pin SW1State and a resistor R61 of the optical switch 5-1 are connected, the other end of R61 is connected with an LED3 and a TVS tube TVST2, and the other end of the LED3 and the TVST2 are connected with a digital DGND.
The +5v \\/OP signal connected with the status control input pins 2A and 1A of the optical switches 5-2 and 5-1 is controlled by the relay K1, specifically, the Fault signal is connected with the resistor R47, the other end of the resistor R47 is connected with the capacitor C23 and the pin 1 of the relay K1, the other end of the capacitor C23 is connected with the digital ground DGND and the pin 2 of the relay K1, the pins 6 and 4 of the relay K1 are connected with the power supply +5V, the pin 5 of the K1 is connected with the +5v \/OP, the capacitors CT13 and C24, the other ends of the capacitors CT13 and C24 are connected with the digital ground DGND, and simultaneously, the +5v \/OP is connected with the resistor R50, the other end of the resistor R50 is connected with the FEEDBACK _ +5V _OP, and the FEEDBACK _ +5V _OPcan feed the status of the optical switching matrix device back to the functional module for judgment.
The optical switches 5-1 and 5-2 are packaged in a cuboid shell with the length of 69mm, the width of 59mm and the height of 16mm, 8 optical fibers and LC interfaces of the optical switching matrix device are respectively connected with the optical module, the optical fiber adapter and the optical fiber adapter, and the other ends of the optical fiber adapter and the optical fiber adapter are respectively connected with the last node 11 and the next node 12 of the security level multi-node communication network to form the optical switching matrix device of the security level multi-node communication network.
The device comprises a cuboid metal shell, a Non-holding type (Non-Latching) optical switch, a line channel LC-LC single-mode fiber jumper wire coil, a power supply circuit board and a 2x 5pin connector, wherein 4 LC fiber jumper joints of an inlet fiber channel and 4 LC fiber jumper joints of an outlet fiber channel are reserved on the outer side of the shell, and the other side outside the shell is provided with the 2x 5pin connector for supplying power.
The device utilizes the characteristics of a Non-holding type Non-switching optical switch, does not need to pass through any fiber winding and fiber winding disc, and can rapidly bypass a certain communication node in a loop from a multi-node network in a plug-and-play mode when the communication node fails or is powered down, so that the integrity of the ring topology structure of the multi-node communication network is ensured, and the normal communication among other communication nodes on the loop is ensured.
The invention has the beneficial effects that:
the invention provides an optical switching matrix device of a security level multi-node communication network, which is safe and reliable to use. The traditional optical switch is difficult to directly use in a communication node, is inconvenient to switch, is easy to lose, and cannot meet the requirement of path switching of large data volume of large nuclear power communication nodes. Therefore, the optical switching matrix device of the multi-node communication network provided by the invention has the advantages of flexible switching mode, simple structure and convenience in use, is directly matched with the multi-node communication module, can be used in a plug-and-play manner, avoids the fiber coiling and the complex networking link, greatly improves the communication efficiency and improves the reliability and the usability of products.
The fault-tolerant design of communication is realized on the optical fiber path of the nuclear safety level multi-node communication network. When a certain communication node on the loop goes wrong or fails, the optical switching matrix device designed by the patent can quickly bypass the node from the multi-node network, and the integrity of the ring topology structure of the multi-node communication network is ensured, so that the normal communication between other communication nodes on the loop is ensured.
Drawings
FIG. 1 is a schematic view of an optical fiber reel of an optical switching matrix device;
FIG. 2 is a schematic diagram of a power supply for an optical switch matrix device of a multi-node communication network;
FIG. 3 is a schematic diagram of the installation of an optical switch matrix device of a multi-node communication network;
FIG. 4 is a schematic diagram of the operation mode of the optical switch;
fig. 5 is a schematic diagram of a ring network communication bypass mechanism.
In the figure: 1. an optical fiber; 2. an optical fiber; 3. an optical fiber; 4. an optical fiber; 5. an optical switching matrix device; 6. a power supply module; 7. an optical module; 8. an optical module; 9. a fiber optic adapter; 10. a fiber optic adapter.
Detailed Description
The invention is further described in detail below with reference to the drawings and specific embodiments.
The invention relates to a multi-node communication optical switching matrix device, which belongs to the technical field of safety-level DCS communication matching tools and comprises a cuboid metal shell, a Non-holding (Non-switching) optical switch, a line channel LC-LC single-mode optical fiber jumper wire coil, a power supply circuit board and a 2x 5pin connector, wherein 4 LC optical fiber jumper connectors of an inlet optical fiber channel and 4 LC optical fiber jumper connectors of an outlet optical fiber channel are reserved on the outer side of the shell, and the 2x 5pin connector is arranged on the other side outside the shell and used for supplying power.
The invention utilizes the characteristic of a Non-holding optical switch to realize fault-tolerant design of communication on an optical fiber path of a nuclear safety level multi-node communication network. When a certain communication node on the loop breaks down or fails, the optical switching matrix device designed by the patent can quickly bypass the node from the multi-node network, and the integrity of the ring topology structure of the multi-node communication network is ensured, so that the normal operation of communication among other communication nodes on the loop is ensured.
(1) Referring to fig. 1 to 5, the multi-node communication optical switching matrix device of the present invention is composed of an optical switching matrix device 5, a power supply module 6, an optical module 7, an optical module 8, an optical fiber adapter 9, and an optical fiber adapter 10.
(2) The optical switching matrix device 5 is composed of two Non-holding (Non-Latching) micro-mechanical (MEMS) optical switches 5-1 and 5-2 according to a certain fiber coiling mode;
(3) The invention adopts the optical fiber coiling method of the optical switching matrix device shown in figure 1, and two bare fibers corresponding to Non-holding micro-mechanical (MEMS) optical switches 5-1 and 5-2 are coiled in a cuboid shell. Specifically, the method comprises the following steps: at the ends of the optical fiber adapter 9 and the optical fiber adapter 10, connecting the optical fiber 5-1-1 corresponding to the optical switch 5-1 with the RX of the optical fiber adapter 9, connecting the optical fiber 5-2-3 corresponding to the optical switch 5-2 with the TX of the optical fiber adapter 9, connecting the optical fiber 5-2-1 corresponding to the optical switch 5-2 with the RX of the optical fiber adapter 10, and connecting the optical fiber 5-1-3 corresponding to the optical switch 5-1 with the TX of the optical fiber adapter 10; at the end of the optical module 7 and the optical module 8, the optical fiber 5-1-2 corresponding to the optical switch 5-1 is connected with the RX of the optical module 7, the optical fiber 5-2-4 corresponding to the optical switch 5-2 is connected with the TX of the optical module 7, the optical fiber 5-2-2 corresponding to the optical switch 5-2 is connected with the RX of the optical module 8, and the optical fiber 5-1-4 corresponding to the optical switch 5-1 is connected with the RX of the optical module 8. The corresponding electrical pins of the optical switch 5-1 and the optical switch 5-2 are connected with the power supply module 6.
(4) As shown in fig. 2, the electrical pins corresponding to the optical switch matrix device 5 (i.e., the electrical pins corresponding to the optical switches 5-1 and 5-2) are connected to the power supply module 6. As shown in fig. 3, the electrical pins of the optical switching matrix device 5 are (power supply +) V +, (digital ground) GND, (protection ground) PE1, PE2, PE3, PE4, (status output pins of optical switches 5-2 and 5-1) SW2State, SW1State, (status control input pin of optical switch 5-2) 2B and 2A, (status control input pin of optical switch 5-1) 1B and 1A, respectively.
(5) The optical switching matrix device 5 of fig. 2 may be directly connected to the power supply module 6 by a safety connector, specifically, pins + V and GND of the optical switching matrix device 5 are respectively connected to +5V and DGND of a power supply for power supply, the protection grounds PE1, PE2 and PE4 are connected to a protection ground, the State control input pins 2A and 2B of the optical switch 5-2 are respectively connected to +5v \ op and DGND, the State control input pins 1A and 1B of the optical switch 5-1 are respectively connected to +5v \ op and DGND, the State output pin SW2State of the optical switch 5-2 is connected to the resistor R62, the other end of the R62 is connected to the light emitting diode LED4, the other end of the light emitting diode LED4 is connected to the digital DGND, the State output pin SW1State of the optical switch 5-1 is connected to the resistor R61, the other end of the R61 is connected to the light emitting diode LED3 and the TVS tube TVST2, and the other end of the light emitting diode LED3 and the TVST2 are connected to the digital DGND.
(6) The +5v \\ \ op signal connected to the status control input pins 2A and 1A of the optical switches 5-2, 5-1 shown in fig. 2 is controlled by the relay K1, and the Fault signal is connected to the resistor R47, the other end of the resistor R47 is connected to the capacitor C23 and the 1 pin of the relay K1, the other end of the capacitor C23 is connected to the digital ground DGND and the 2 pin of the relay K1, the 6 pin and the 4 pin of the relay K1 are connected with a power supply by +5V, the 5pin of the relay K1 is connected with +5V _OP, the capacitors CT13 and C24, the other ends of the capacitors CT13 and C24 are connected with the digital DGND, meanwhile, the +5V _OPis connected with the resistor R50, the other end of the resistor R50 is connected with FEEDBACK _ +5V _OP, and the state of the optical switching matrix device can be fed back to the function module for judgment.
(7) As shown in fig. 3, the optical switches 5-1 and 5-2 are packaged in a rectangular parallelepiped housing with a length of 69mm, a width of 59mm, and a height of 16mm according to the fiber coiling manner described in (3), and 8 optical fibers (LC interfaces) of the optical switching matrix device are respectively connected with the optical module 7, the optical module 8, the optical fiber adapter 9, and the optical fiber adapter 10 according to the connection manner described in (3), and the other ends of the optical fiber adapter 9 and the optical fiber adapter 10 are respectively connected with an upper node 11 and a lower node 12 of a security level multi-node communication network, so as to form the optical switching matrix device of the security level multi-node communication network.
The invention relates to an optical switching matrix device of a security-level multi-node communication network, which consists of a cuboid metal shell, a Non-holding (Non-switching) optical switch, a line channel LC-LC single-mode optical fiber jumper wire coiling, a power supply circuit board and a 2x 5pin connector, wherein 4 LC optical fiber jumper connectors of an inlet optical fiber channel and 4 LC optical fiber jumper connectors of an outlet optical fiber channel are reserved on the outer side of the shell, and the 2x 5pin connector is arranged on the other side outside the shell and used for supplying power. By utilizing the characteristic of a Non-holding type (Non-Latching) optical switch, the fault-tolerant design of communication is realized on an optical fiber path of a nuclear safety level multi-node communication network in a plug-and-play mode without any fiber winding and fiber winding. When a certain communication node on the loop breaks down or fails, the optical switching matrix device designed by the patent can quickly bypass the node from the multi-node network, and the integrity of the ring topology structure of the multi-node communication network is ensured, so that the normal operation of communication among other communication nodes on the loop is ensured.
The technical scheme provided by the invention is further explained by combining the accompanying drawings as follows:
as shown in fig. 1, the optical switching matrix device of the multi-node communication network includes an optical switching matrix device 5, a power supply module 6, an optical module 7, an optical module 8, an optical fiber adapter 9, and an optical fiber adapter 10, where the optical switching matrix device 5 includes two Non-holding micro machines (MEMS) 5-1, 5-2 and eight bare fibers. Bypass switching of an optical switching matrix arrangement of a multi-node communication network is accomplished by optical switching.
The working mode of the optical switch is as shown in fig. 4, when the optical switch is switched on, the optical fibers 1 and 3 are on, and the optical fibers 4 and 2 are off; when the optical switch is powered on, the optical fibers 1 and 2 are paths, and the optical fibers 3 and 4 are paths. The optical switching matrix device 5 is based on the optical path switching mode shown in fig. 4, and the bare fiber of the optical switch is inserted into the power supply module 6 according to the bending arc dial of the optical fiber in a fixed metal shell by adopting the wiring mode shown in fig. 1, thereby realizing the bypass switching of the optical switching matrix device of the multi-node communication network.
Whether or not the optical switching matrix device of the multi-node communication network is bypassed is realized by the circuit shown in fig. 2, and the optical switching matrix device 5 is connected with the circuit shown in fig. 2, and the switching of the optical fiber path of the optical switching matrix device 5 can be controlled by the state of the relay K1. When the Fault signal is high level +5V, the 4 and 5 pins of the relay K1 are closed, the +5V \ u OP is electrified, the state control input pins 2A and 1A of the optical switching matrix device 5 input +5V level, at this time, the optical path is shown as a solid line in figure 1, the optical fibers 5-1-1 and 5-1-2 are passages, and the optical fibers 5-1-3 and 5-1-4 are passages; the optical fibers 5-2-1 and 5-2-2 are paths, the optical fibers 5-2-3 and 5-2-4 are paths, and the optical module 7 and the optical module 8 are connected in a multi-node communication network; when Fault signal is low level, 4 and 5 pins of the relay K1 are disconnected, +5v _OPis de-energized, the state control input pins 2A and 1A of the optical switching matrix device 5 input low level, at this time, the optical path is shown by a dotted line in fig. 1, the optical fibers 5-1-1 and 5-1-3 are paths, the optical fibers 5-2-1 and 5-2-3 are paths, the optical module 7 and the optical module 8 are skipped by the optical switching matrix device, and the optical path skips the node according to a communication path of the dotted line in fig. 1.
FIG. 5 is a schematic diagram of a bypass switch of a multi-node communication network, which is a fault-tolerant design for implementing communication on a fiber channel of a multi-node communication network at a nuclear security level. When a fault signal of the node 1 is imminent or power is lost, the optical switching matrix device shown by a shaded part in the figure switches a light path, the node 1 is bypassed, an optical fiber path only passes through the optical switching matrix device of the shaded part in the node 1 and does not pass through the node 1, at the moment, only N-1 nodes are left in a multi-node communication network loop, and the fault-tolerant design of communication is realized on the optical fiber path of the nuclear safety multi-node communication network. Namely, when a certain communication node on the loop goes wrong or fails, the optical switching matrix device designed by the patent can quickly bypass the node from the multi-node network, and the integrity of the ring topology structure of the multi-node communication network is ensured, so that the normal communication among other communication nodes on the loop is ensured.
It should be understood that the embodiments described herein are only for illustrating and explaining the present patent, and are not intended to limit the present patent.

Claims (3)

1. An optical switching matrix device of a security level multi-node communication network comprises an optical switching matrix device (5), a power supply module (6), an optical module A (7), an optical module B (8), an optical fiber adapter A (9), an optical fiber adapter B (10) and optical fibers;
the method is characterized in that: the optical switching matrix device (5) is composed of a first optical switch (5-1) and a second optical switch (5-2) of two Non-holding type Non-switching micro-mechanical MEMS according to a certain fiber coiling mode;
at the end of the optical fiber adapter A (9) and the end of the optical fiber adapter B (10), connecting the optical fiber I (5-1-1) corresponding to the first optical switch (5-1) with the RX of the optical fiber adapter A (9), connecting the optical fiber seven (5-2-3) corresponding to the second optical switch (5-2) with the TX of the optical fiber adapter A (9), connecting the optical fiber five (5-2-1) corresponding to the second optical switch (5-2) with the RX of the optical fiber adapter B (10), and connecting the optical fiber III (5-1-3) corresponding to the first optical switch (5-1) with the TX of the optical fiber adapter B (10); at the ends of an optical module A (7) and an optical module B (8), connecting a second optical fiber (5-1-2) corresponding to a first optical switch (5-1) with the RX of the optical module A (7), connecting an eighth optical fiber (5-2-4) corresponding to a second optical switch (5-2) with the TX of the optical module A (7), connecting a sixth optical fiber (5-2-2) corresponding to the second optical switch (5-2) with the RX of the optical module B (8), and connecting a fourth optical fiber (5-1-4) corresponding to the first optical switch (5-1) with the RX of the optical module B (8);
the electrical pins corresponding to the optical switching matrix device (5), namely the electrical pins corresponding to the first optical switch (5-1) and the second optical switch (5-2), are connected with the power supply module (6);
the electrical pins of the optical switching matrix device (5) are respectively: the power supply + is V +, the digital ground is GND, the protective grounds are PE1, PE2, PE3 and PE4 respectively, state output pins of the second optical switch (5-2) and the first optical switch (5-1) are SW2State and SW1State respectively, state control input pins of the second optical switch (5-2) are 2B and 2A, and State control input pins of the first optical switch (5-1) are 1B and 1A respectively;
the optical switching matrix device (5) is directly connected with a power supply module (6) in a direct-plug manner through a safety connector, specifically, pins V + and GND of the optical switching matrix device (5) are respectively connected with +5V and DGND of a power supply for power supply, the protected grounds PE1, PE2 and PE4 are connected with a protected ground, state control input pins 2A and 2B of a second optical switch (5-2) are respectively connected with +5V \\/OP and DGND, state control input pins 1A and 1B of a first optical switch (5-1) are respectively connected with +5V \/OP and DGND, a State output pin SW2State and a resistor R62 of the second optical switch (5-2) are connected, the other end of R62 is connected with a light-emitting diode LED4, the other end of the light-emitting diode LED4 is connected with a digital ground, a State output pin SW1 and a resistor R61 of the optical switch 5-1 are connected, the other end of R61 is connected with a light-emitting diode LED3 and a TVS tube ST2, and the other end of the light-emitting diode LED3 and the TVST2 are connected with a digital DGND;
the +5V \/OP signal connected with the state control input pins 2A and 1A of the second optical switch (5-2) and the first optical switch (5-1) is controlled by the relay K1, a specific Fault signal is connected with a resistor R47, the other end of the resistor R47 is connected with a capacitor C23 and a pin 1 of the relay K1, the other end of the capacitor C23 is connected with a digital ground DGND and a pin 2 of the relay K1, the 6 pin and the 4 pin of the relay K1 are connected with a power supply by +5V, the 5pin of the relay K1 is connected with +5V _OP, capacitors CT13 and C24, the other ends of the capacitors CT13 and C24 are connected with digital DGND, meanwhile, the +5V _OPis connected with a resistor R50, the other end of the resistor R50 is connected with FEEDBACK _ +5V _OP, and the FEEDBACK _ +5V _OPcan feed the state of the optical switching matrix device back to the function module for judgment;
the first optical switch (5-1) and the second optical switch (5-2) are packaged in a cuboid shell with the length of 69mm, the width of 59mm and the height of 16mm, 8 optical fibers of the optical switching matrix device are respectively connected with an optical module A (7) and an optical module B (8), an optical fiber adapter A (9) and an optical fiber adapter B (10) through LC interfaces, and the other ends of the optical fiber adapter A (9) and the optical fiber adapter B (10) are respectively connected with an upper node (11) and a lower node (12) of a security level multi-node communication network to form the optical switching matrix device of the security level multi-node communication network.
2. An optical switch matrix apparatus of a security level multi-node communication network as claimed in claim 1, wherein: this device comprises cuboid metal casing, non-keeping type Non-Latching photoswitch, line passageway LC-LC single mode fiber jumper wire dish line, power supply circuit board and 2x 5pin connectors, and 4 LC fiber jumper joint of entry fibre channel and 4 LC fiber jumper joint of export fibre channel are left to the outside of casing, and the outside opposite side of casing is 2x 5pin connectors and is used for supplying power.
3. An optical switching matrix apparatus for a security level multi-node communication network as claimed in claim 1, wherein: the device utilizes the characteristics of a Non-holding type Non-switching optical switch, does not need to pass through any fiber winding and fiber winding disc, and rapidly bypasses a certain communication node in a loop from a multi-node network in a plug-and-play mode when the communication node fails or is powered off, so that the integrity of the ring topology structure of the multi-node communication network is ensured, and the normal communication among other communication nodes in the loop is ensured.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201690444U (en) * 2010-05-17 2010-12-29 瑞斯康达科技发展股份有限公司 Optical fiber bypass protecting device
CN103873138A (en) * 2012-12-13 2014-06-18 江宏祥 Optical transmission module having bypass switch function and device shell matched with same in use
CN104601218A (en) * 2015-02-15 2015-05-06 桂林恒毅金宇通信技术有限公司 Intelligent optical-port bypass exchange protecting system
CN205081785U (en) * 2015-09-22 2016-03-09 南京普天网络有限公司 Light bypass protection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201690444U (en) * 2010-05-17 2010-12-29 瑞斯康达科技发展股份有限公司 Optical fiber bypass protecting device
CN103873138A (en) * 2012-12-13 2014-06-18 江宏祥 Optical transmission module having bypass switch function and device shell matched with same in use
CN104601218A (en) * 2015-02-15 2015-05-06 桂林恒毅金宇通信技术有限公司 Intelligent optical-port bypass exchange protecting system
CN205081785U (en) * 2015-09-22 2016-03-09 南京普天网络有限公司 Light bypass protection system

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