OTDR board card design and wavelength division device

Abstract

The embodiment of the present disclosure provides an OTDR board card design and a wavelength division device, the OTDR board card comprising: a 1*N optical switch, a driving and control module, an optical time domain reflectometry (OTDR) module and a general input and output (GPIO) button module; the 1*N optical switch comprises N optical fiber interfaces, and switches the optical fiber interfaces in response to an interface switching signal of the driving and control module to connect the optical fiber of a specified optical fiber interface; the driving and control module sends the interface switching signal to the 1*N optical switch in response to an interface setting of the GPIO button module; the driving and control module configures optical fiber measurement parameters for the OTDR module in response to parameter setting of the GPIO button module; the driving and control module controls the OTDR module to perform OTDR measurement on the optical fiber; the OTDR module performs OTDR measurement on the optical fiber according to the configured optical fiber measurement parameters in response to the control of the driving and control module; and the GPIO button module generates the interface setting and the parameter setting in response to external setting operation. By adding the GPIO button module in the OTDR board card, the use of an instrument or the use of a computer in cooperation can be reduced in OTDR testing.

Description

Technical Field

[0001] This disclosure relates to the fields of network technology and security technology, and in particular to an OTDR board design and wavelength division multiplexing (WDM) device. Background Technology

[0002] In the field of optical communication in network technology, existing OTDR (optical time-domain reflectometer) testing is performed by using an OTDR instrument or an OTDR board connected to the device.

[0003] Using OTDR instruments for testing incurs additional instrument costs. When using OTDR boards connected to devices for testing, a computer is required to control the device and display the test results. Regardless of the testing method, additional instruments or computers are needed, thereby increasing the operation and maintenance costs of the existing network data center.

[0004] Therefore, how to reduce the use of instruments or computers in OTDR testing has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this disclosure is to provide an OTDR board design and wavelength division multiplexing (WDM) device to reduce the use of instruments or computers in OTDR testing. The specific technical solution is as follows:

[0006] According to a first aspect of the present disclosure, an OTDR board is provided, comprising:

[0007] 1*N optical switch, drive and control module, optical time domain reflector (OTDR) module and general purpose input / output (GPIO) button module;

[0008] The 1*N optical switch includes N optical fiber interfaces, where N is a positive integer; the 1*N optical switch is used to physically switch the optical fiber interfaces in response to the interface switching signal of the drive and control module, and connect the optical fiber of the specified optical fiber interface.

[0009] The drive and control module is used to send an interface switching signal to the 1*N optical switch in response to the interface setting of the GPIO button module; to configure fiber optic measurement parameters for the OTDR module in response to the parameter setting of the GPIO button module; and to control the OTDR module to perform OTDR measurement of the fiber optic cable.

[0010] The OTDR module is used to respond to the control of the drive and control module, and measure the optical fiber connected by the 1*N optical switch according to the configured optical fiber measurement parameters to obtain OTDR measurement data.

[0011] The GPIO button module is used to generate interface settings and parameter settings in response to external setting operations.

[0012] Optionally, the 1*N optical switch is detachable, the OTDR board is provided with a reserved interface corresponding to the optical fiber interface, and the drive and control module pre-stores a variety of optical switch control logics.

[0013] The drive and control module is also used to obtain the N value of the current 1*N optical switch after power-on; and to load the optical switch control logic corresponding to the N value of the current 1*N optical switch.

[0014] Optionally, the drive and control module is specifically used to obtain the current type and N value of the 1*N optical switch after power-on; and load the optical switch control logic corresponding to the current type and N value of the 1*N optical switch.

[0015] Optionally, the GPIO button includes at least one of the following: a parameter setting button, a start / stop test button, a light switch toggle button, and a return to the HOME page button.

[0016] Optionally, the parameter setting button is used to configure at least one fiber optic measurement parameter among test distance range, pulse width, test duration, test mode, and length unit.

[0017] Optionally, the OTDR board may also include:

[0018] Control and communication module and LCD display module;

[0019] The drive and control module is also used to acquire OTDR measurement data of the OTDR module, generate data to be displayed based on the OTDR measurement data, and send the data to be displayed to the control and communication module;

[0020] The control and communication module is used to send the data to be displayed to the liquid crystal display module;

[0021] The liquid crystal display module is used to receive and display the received data to be displayed.

[0022] Optionally, the OTDR board is connected to the main control board via a backplane; the backplane is used to support the electrical connection and signal transmission between the OTDR board and the main control board.

[0023] The OTDR board also includes:

[0024] Control and communication module and LCD display module;

[0025] The drive and control module is also used to acquire OTDR measurement data from the OTDR module and send the OTDR measurement data to the control and communication module;

[0026] The control and communication module is used to forward the OTDR measurement data to the main control board, so that the main control board generates data to be displayed based on the OTDR measurement data, and sends the data to be displayed to the liquid crystal display module;

[0027] The liquid crystal display module is used to receive and display the received data to be displayed.

[0028] Optionally, the OTDR board may also include:

[0029] The power module is used to provide operating power to the various modules in the OTDR board.

[0030] Optionally, the OTDR board has a length of 15-17cm and a height of 5-6cm.

[0031] According to a second aspect of the present disclosure, a wavelength division multiplexing (WDM) device is provided, including an OTDR board as described in any of the first aspects of the present disclosure.

[0032] Beneficial effects of the embodiments disclosed herein:

[0033] This disclosure provides an OTDR board design and wavelength division multiplexing (WDM) device. The OTDR board includes: a 1*N optical switch, a drive and control module, an optical time domain reflectance (OTDR) module, and a general purpose input / output (GPIO) button module. The 1*N optical switch includes N fiber optic interfaces, where N is a positive integer. The 1*N optical switch is used to physically switch the fiber optic interfaces in response to an interface switching signal from the drive and control module, connecting the fiber to a specified interface. The drive and control module is used to send an interface switching signal to the 1*N optical switch in response to an interface setting from the GPIO button module; configure fiber optic measurement parameters for the OTDR module in response to parameter settings from the GPIO button module; and control the OTDR module to perform OTDR measurements on the fiber. The OTDR module, in response to control from the drive and control module, measures the fiber connected to the 1*N optical switch according to the configured fiber optic measurement parameters to obtain OTDR measurement data. The GPIO button module is used to generate interface settings and parameter settings in response to external setting operations. A GPIO button module is added to the OTDR board. This GPIO button module generates interface settings and parameter settings. The drive and control module responds to the interface settings of the GPIO button module by sending an interface switching signal to the 1*N optical switch; and responds to the parameter settings of the GPIO button module by configuring fiber optic measurement parameters for the OTDR module. The 1*N optical switch, responding to the interface switching signal from the drive and control module, physically switches the fiber optic interface, connecting the fiber to the specified fiber. The OTDR module, responding to the control of the drive and control module, performs OTDR measurements on the specified fiber. Adding a GPIO button module to the OTDR board allows direct control of the OTDR module's parameter settings and testing, eliminating the need for computer control or additional instruments, thus reducing the use of instruments or computers in OTDR testing.

[0034] Of course, implementing any product or method of this disclosure does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other embodiments can be obtained based on these accompanying drawings.

[0036] Figure 1 This is a schematic diagram of the structure of an OTDR board provided in an embodiment of the present disclosure;

[0037] Figure 2This is another structural schematic diagram of the OTDR board provided in the embodiments of this disclosure. Detailed Implementation

[0038] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art based on this disclosure are within the scope of protection of this disclosure.

[0039] To reduce the use of instruments or computers in OTDR testing, this disclosure provides an OTDR board design and wavelength division multiplexing (WDM) device.

[0040] First, the structure of an OTDR board provided in this disclosure embodiment will be described in detail, see [link to relevant documentation]. Figure 1 The OTDR board includes:

[0041] 11. 1*N optical switch, 12. drive and control module, 13. optical time domain reflector (OTDR) module, and 14. general purpose input / output (GPIO) button module;

[0042] The 1*N optical switch 11 includes N optical fiber interfaces, where N is a positive integer; the 1*N optical switch 11 is used to physically switch the optical fiber interfaces in response to the interface switching signal of the drive and control module 12, and connect the optical fiber of the specified optical fiber interface.

[0043] The drive and control module 12 is used to send an interface switching signal to the 1*N optical switch 11 in response to the interface setting of the GPIO button module 14; to configure fiber optic measurement parameters for the OTDR module 13 in response to the parameter setting of the GPIO button module 14; and to control the OTDR module 13 to perform OTDR measurement of the fiber optic cable.

[0044] The OTDR module 13 is used to respond to the control of the drive and control module 12, and measure the optical fiber connected by the 1*N optical switch 11 according to the configured optical fiber measurement parameters to obtain OTDR measurement data.

[0045] The GPIO button module 14 is used to generate interface settings and parameter settings in response to external setting operations.

[0046] The 1*N optical switch includes N optical fiber interfaces, where N is a positive integer, and N can be 1, 2, 3, 4, ... , meaning the 1*N optical switch is flexibly replaceable, and can be a 1*2 optical switch, a 1*3 optical switch, a 1*4 optical switch, ... The 1*N optical switch is used to physically switch the optical fiber interfaces and connect the optical fiber of a specified optical fiber interface. Switching via the 1*N optical switch can also select a single optical fiber channel for measurement, and multiple channels can be flexibly changed, such as 2 channels being replaced with 3 channels, 4 channels, 5 channels... N channels.

[0047] The drive and control module is used to send control signals to the 1*N optical switch to control the 1*N optical switch to physically switch the fiber optic interface and connect the fiber to the specified fiber optic interface; control the OTDR module to set the test parameters of the fiber to be measured in the specified fiber optic interface; and also to send drive signals to the OTDR module after the test parameters are set to drive the OTDR module to measure the test parameters of the fiber to be measured in the specified fiber optic interface.

[0048] The OTDR module measures the parameters to be measured according to the parameters to be measured of the optical fiber of the specified optical fiber interface; after the measurement of the parameters to be measured is completed, the OTDR measurement data is obtained, and a data signal responding to the OTDR measurement data is sent to the drive and control module.

[0049] The drive and control module is also used to receive data signals sent by the OTDR module in response to OTDR measurement data;

[0050] A GPIO button module is a functional button that controls the driver and control module to perform corresponding actions by pressing the corresponding buttons on the GPIO button. By pressing the corresponding buttons on the GPIO button, the driver and control module can perform actions such as physically switching the 1*N optical switches to the fiber optic interfaces, and setting and measuring the parameters to be measured by the OTDR module on the specified fiber optic interfaces. By pressing the GPIO button, the driver and control module can also control the switching of the 1*N optical switches, selecting one fiber from the specified fiber optic interfaces for OTDR measurement, or two fibers, provided the number of selected fibers is less than or equal to the number of specified fiber optic interfaces.

[0051] In one possible implementation, the 1*N optical switch is detachable, the OTDR board is provided with a reserved interface corresponding to the optical fiber interface, and the drive and control module pre-stores a variety of optical switch control logics.

[0052] The drive and control module is also used to obtain the N value of the current 1*N optical switch after power-on; and to load the optical switch control logic corresponding to the N value of the current 1*N optical switch.

[0053] The OTDR board design includes reserved interfaces (including hardware interfaces, software interfaces, logic interfaces, and input / output interfaces). Since the 1*N optical switches are detachable, they can be manually replaced. The driver and control module pre-stores various optical switch control logics. By reading the channel number N value of the optical switch, the driver and control module loads the corresponding optical switch control logic for the current 1*N optical switch. Based on the read information, the driver and control module selects the corresponding switching control method for different types of interfaces (hardware, logic, software, input / output), and switches the 1*N optical switch accordingly. For example, if the driver and control module reads a hardware interface, it selects the corresponding switching control method for that hardware interface, controlling the 1*N optical switch to physically switch the fiber optic interface and connect the fiber optic cable to the hardware interface.

[0054] In one possible implementation, the drive and control module is specifically used to obtain the current type and N value of the 1*N optical switch after power-on; and load the optical switch control logic corresponding to the current type and N value of the 1*N optical switch.

[0055] The OTDR board design includes reserved interfaces (including hardware interfaces, software interfaces, logic interfaces, and input / output interfaces). Since the 1*N optical switches are detachable, they can be manually replaced. The driver and control module pre-stores various optical switch control logics. By reading the type and channel number N value of the optical switch, the driver and control module loads the corresponding optical switch control logic for the current 1*N optical switch type and N value. Based on the read information, the driver and control module selects the corresponding switching control method for different types of interfaces (hardware, logic, software, input / output), and switches the 1*N optical switch accordingly. For example, if the driver and control module reads a hardware interface, it selects the corresponding switching control method for that hardware interface, controlling the 1*N optical switch to physically switch the fiber optic interface and connect the fiber optic cable to the hardware interface.

[0056] In one possible implementation, the GPIO button includes at least one of the following: a parameter setting button, a start / stop measurement button, a light switch toggle button, and a return to the HOME page button.

[0057] In one possible implementation, the parameter setting button is used to configure at least one fiber optic measurement parameter among the following: measurement distance range, pulse width, test duration, test mode, and length unit.

[0058] The GPIO button module on the OTDR board includes parameter setting buttons, start / stop measurement buttons, optical switch switching buttons, and a return to HOME page button. The parameter setting buttons are used to configure parameters such as measurement distance range, pulse width, test duration, test mode, and length unit. The OTDR module measures the optical fiber connected by the 1*N optical switch according to the configured optical fiber measurement parameters to obtain OTDR measurement data.

[0059] In one example, the fiber optic measurement parameters can be one or several. For instance, fiber optic measurements can measure only the pulse width, or they can measure both the distance range and the pulse width.

[0060] In the above embodiment, a GPIO button module is added to the OTDR board. This GPIO button module generates interface settings and parameter settings. The drive and control module, responding to the interface settings of the GPIO button module, sends an interface switching signal to the 1*N optical switch; and, responding to the parameter settings of the GPIO button module, configures fiber optic measurement parameters for the OTDR module. The 1*N optical switch, responding to the interface switching signal from the drive and control module, physically switches the fiber optic interface, connecting the fiber to the specified interface. The OTDR module, responding to the control of the drive and control module, performs OTDR measurements on the specified fiber. Adding a GPIO button module to the OTDR board allows direct control of the OTDR module's parameter settings and testing, eliminating the need for computer control or additional instruments, thus reducing the use of instruments or computers in OTDR testing.

[0061] See Figure 2 This is another structural diagram of the OTDR board provided in this embodiment of the disclosure. The OTDR board includes:

[0062] 11. 1*N optical switch, 12. drive and control module, 13. optical time domain reflector (OTDR) module, and 14. general purpose input / output (GPIO) button module;

[0063] The 1*N optical switch 11 includes N optical fiber interfaces, where N is a positive integer; the 1*N optical switch 11 is used to physically switch the optical fiber interfaces in response to the interface switching signal of the drive and control module 12, and connect the optical fiber of the specified optical fiber interface.

[0064] The drive and control module 12 is used to send an interface switching signal to the 1*N optical switch 11 in response to the interface setting of the GPIO button module 14; to configure fiber optic measurement parameters for the OTDR module 13 in response to the parameter setting of the GPIO button module 14; and to control the OTDR module 13 to perform OTDR measurement of the fiber optic cable.

[0065] The OTDR module 13 is used to respond to the control of the drive and control module 12, and measure the optical fiber connected by the 1*N optical switch 11 according to the configured optical fiber measurement parameters to obtain OTDR measurement data.

[0066] The GPIO button module 14 is used to generate interface settings and parameter settings in response to external setting operations.

[0067] The OTDR board also includes:

[0068] Control and communication module 15 and LCD display module 16;

[0069] The drive and control module 12 is also used to acquire the OTDR measurement data of the OTDR module 13, generate data to be displayed based on the OTDR measurement data, and send the data to be displayed to the control and communication module 15;

[0070] The control and communication module 15 is used to send the data to be displayed to the liquid crystal display module 16;

[0071] The liquid crystal display module 16 is used to receive and display the received data to be displayed.

[0072] The drive and control module is also used to generate data to be displayed (measurement data without any processing or analysis, not the measurement data required by the user) from the OTDR measurement data after receiving the data signal sent by the OTDR module in response to the OTDR measurement data and send it to the control and communication module.

[0073] The control and communication module connects the communication transmission between the drive and control module and the liquid crystal display module, and is used to receive the data to be displayed sent by the drive and control module and send the data to be displayed to the liquid crystal display module;

[0074] The LCD module is used to receive the data to be displayed sent by the control and communication module and display the data on its own LCD screen.

[0075] In one possible implementation, the OTDR board is connected to the main control board via a backplane; the backplane is used to support the electrical connection and signal transmission between the OTDR board and the main control board.

[0076] The OTDR board also includes:

[0077] Control and communication module 15 and LCD display module 16;

[0078] The drive and control module 12 is also used to acquire the OTDR measurement data of the OTDR module 13 and send the OTDR measurement data to the control and communication module 15;

[0079] The control and communication module 15 is used to forward the OTDR measurement data to the main control board, so that the main control board generates data to be displayed based on the OTDR measurement data, and sends the data to be displayed to the liquid crystal display module 16;

[0080] The liquid crystal display module 16 is used to receive and display the received data to be displayed.

[0081] The drive and control module is also used to send the OTDR measurement data to the control and communication module after receiving the data signal sent by the OTDR module in response to the OTDR measurement data;

[0082] The control and communication module is used to send the OTDR measurement data received from the drive and control module to the main control board through the backplane;

[0083] The main control board is used to receive OTDR measurement data sent by the control and communication module, analyze and process the OTDR measurement data according to preset requirements, and then send the processed OTDR measurement data to the LCD display module through the backplane.

[0084] The LCD display module is used to receive the processed OTDR measurement data sent by the main control board and display the processed OTDR measurement data on its own LCD screen. Users can directly see the OTDR measurement data results on the LCD display module's screen.

[0085] In one possible implementation, the OTDR board further includes:

[0086] The power module 17 is used to provide operating power to each module in the OTDR board.

[0087] In one possible implementation, the OTDR board has a length of 15-17cm and a height of 5-6cm.

[0088] In one example, the OTDR board can be 16cm long and 5.5cm high.

[0089] In the above embodiments, the drive and control module is further configured to acquire OTDR measurement data from the OTDR module and send the OTDR measurement data to the control and communication module; the control and communication module is configured to forward the OTDR measurement data to the main control board, so that the main control board generates data to be displayed based on the OTDR measurement data, and sends the data to be displayed to the LCD module; the LCD module is configured to receive and display the received data to be displayed. By adding an LCD module to the OTDR board, receiving the processed OTDR measurement data sent by the main control board, and displaying the processed OTDR measurement data on its own LCD screen, the user can directly see the OTDR measurement data results on the LCD module's screen without the need for a computer to display the measurement data results, thus reducing the need for a computer in OTDR testing.

[0090] This disclosure also provides a wavelength division multiplexing (WDM) device, including an OTDR board as described in any of the above embodiments.

[0091] The OTDR board provided in this embodiment is connected to the main control board via a communication bus. The communication bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into an address bus, a data bus, a control bus, etc. The communication interface is used for communication between the OTDR board and the main control board.

[0092] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0093] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0094] The above description is merely a preferred embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure are included within the scope of protection of this disclosure.

Claims

1. An OTDR board, characterized in that, The OTDR board includes: 1*N optical switch, drive and control module, optical time domain reflector (OTDR) module and general purpose input / output (GPIO) button module; The 1*N optical switch includes N optical fiber interfaces, where N is a positive integer; the 1*N optical switch is used to physically switch the optical fiber interfaces in response to the interface switching signal of the drive and control module, and connect the optical fiber of the specified optical fiber interface. The drive and control module is used to send an interface switching signal to the 1*N optical switch in response to the interface setting of the GPIO button module; to configure fiber optic measurement parameters for the OTDR module in response to the parameter setting of the GPIO button module; and to control the OTDR module to perform OTDR measurement of the fiber optic cable. The OTDR module is used to respond to the control of the drive and control module, and measure the optical fiber connected by the 1*N optical switch according to the configured optical fiber measurement parameters to obtain OTDR measurement data. The GPIO button module is used to generate interface settings and parameter settings in response to external setting operations.

2. The OTDR board according to claim 1, characterized in that, The 1*N optical switch is detachable, the OTDR board is provided with a reserved interface corresponding to the optical fiber interface, and the drive and control module pre-stores a variety of optical switch control logics. The drive and control module is also used to obtain the N value of the current 1*N optical switch after power-on; and to load the optical switch control logic corresponding to the N value of the current 1*N optical switch.

3. The OTDR board according to claim 2, characterized in that, The drive and control module is specifically used to obtain the current type and N value of the 1*N optical switch after power-on; and to load the optical switch control logic corresponding to the current type and N value of the 1*N optical switch.

4. The OTDR board according to claim 1, characterized in that, The GPIO button includes at least one of the following: a parameter setting button, a start / stop test button, a light switch toggle button, and a return to the HOME page button.

5. The OTDR board according to claim 4, characterized in that, The parameter setting button is used to configure at least one fiber optic measurement parameter among test distance range, pulse width, test duration, test mode, and length unit.

6. The OTDR board according to claim 1, characterized in that, The OTDR board also includes: Control and communication module and LCD display module; The drive and control module is also used to acquire OTDR measurement data of the OTDR module, generate data to be displayed based on the OTDR measurement data, and send the data to be displayed to the control and communication module; The control and communication module is used to send the data to be displayed to the liquid crystal display module; The liquid crystal display module is used to receive and display the received data to be displayed.

7. The OTDR board according to claim 1, characterized in that, The OTDR board is connected to the main control board via a backplane. The backplate is used to support the electrical connection and signal transmission between the OTDR board and the main control board; The OTDR board also includes: Control and communication module and LCD display module; The drive and control module is also used to acquire OTDR measurement data from the OTDR module and send the OTDR measurement data to the control and communication module; The control and communication module is used to forward the OTDR measurement data to the main control board, so that the main control board generates data to be displayed based on the OTDR measurement data, and sends the data to be displayed to the liquid crystal display module; The liquid crystal display module is used to receive and display the received data to be displayed.

8. The OTDR board according to claim 1, characterized in that, The OTDR board also includes: The power module is used to provide operating power to the various modules in the OTDR board.

9. The OTDR board according to claim 1, characterized in that, The OTDR board is 15-17cm long and 5-6cm high.

10. A wavelength division multiplexing (WDM) device, characterized in that, Includes the OTDR board as described in any one of claims 1-9.

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