Optical gateway

Abstract

Provided in the embodiments of the present application is an optical gateway. A space enclosed by a front casing and a rear casing of the optical gateway is used for accommodating a circuit board, a screen, an optical fiber interface assembly and an optical transceiver module. The optical transceiver module is electrically connected to the circuit board, and the optical fiber interface assembly is used for connecting to an optical fiber. The screen is fixedly connected to the front casing, and the screen is electrically connected to the circuit board. Moreover, the front casing comprises a light-transmitting area, and a picture on the screen can be displayed via the light-transmitting area. Thus, in addition to realizing the traditional optical signal transmission function by means of the optical transceiver module and the optical fiber interface assembly, the optical gateway can further display on the screen information that users want to know, for example, display time, weather, pictures, uploading and downloading speeds and the like by means of the screen, providing a mode of interaction between users and the optical gateway, thus helping to improve user experience.

Description

An optical gateway

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on February 25, 2024, with application number 202420344584.3 and application name “An Optical Gateway”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to an optical gateway. Background Art

[0003] Fiber to the room (FTTR) is a networking technology that lays fiber optic cables to every room, achieving comprehensive network coverage. It provides seamless network coverage and achieves gigabit transmission speeds, easily meeting the network needs of people in their daily lives and offices.

[0004] FTTRs consist of multiple optical gateways, typically a master gateway and multiple slave gateways, forming a whole-home network. The master and slave gateways can be placed in various locations throughout the home, such as in a low-voltage electrical box, on a TV cabinet, mounted on a wall, or embedded in a switch box. Current optical gateways primarily function as traditional optical signal transmission and lack user interaction capabilities.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide an optical gateway that can display information that users want to know on a screen. For example, by displaying the time, weather, pictures, upload and download speeds, etc. on the screen, it provides a way for users to interact with the optical gateway, which is conducive to improving the user experience.

[0007] In a first aspect, embodiments of the present application provide an optical gateway comprising a front housing, a rear housing, a screen, a circuit board, a fiber optic interface assembly, and an optical transceiver module. The front housing is fixedly connected to the rear housing, and the space enclosed by the front and rear housings is used to accommodate the screen, circuit board, fiber optic interface assembly, and optical transceiver module. The optical transceiver module is electrically connected to the circuit board, and the fiber optic interface assembly is used to connect optical fibers. The screen is fixedly connected to the front housing and electrically connected to the circuit board. The front housing includes a light-transmitting area, through which images on the screen are displayed.

[0008] In this implementation, the optical gateway not only performs traditional optical signal transmission functions through optical transceiver modules and fiber optic interface components, but also displays user-desired information on the screen. For example, the screen displays time, weather, images, and upload and download speeds, providing a way for users to interact with the optical gateway and improving the user experience.

[0009] In some possible implementations, the optical gateway further includes a screen protection sheet secured to the light-transmitting area of ​​the front housing to protect the screen. It should be understood that to better protect the screen, the screen protection sheet should be no smaller than the screen itself, ensuring complete coverage of the screen.

[0010] In some possible implementations, the screen protection sheet is integrally formed with the front housing, for example, by two-color injection molding, which is beneficial to improving the stability and aesthetics of the overall structure.

[0011] In some possible implementations, the optical gateway further includes a transparent film fixed on the front surface of the front housing. The provision of the transparent film is helpful in improving the flatness of the surface.

[0012] In some possible implementations, the portion of the transparent film other than the light-transmitting area includes patterns, which helps to improve the aesthetics of the optical gateway.

[0013] In some possible implementations, the screen is a touch screen display, which allows the screen to be controlled by touch, making the interaction between the user and the optical gateway more convenient.

[0014] In some possible implementations, the side of the front housing further includes buttons electrically connected to the circuit board. This allows users to control the screen through the buttons, for example, turning pages to display different images, thus enriching the ways users interact with the optical gateway.

[0015] In some possible implementations, the screen includes a first screw hole and the back of the front housing includes a second screw hole. The first screw hole and the second screw hole are used to securely connect the screen and the front housing with screws, thereby achieving a relatively simple implementation and facilitating assembly.

[0016] In some possible implementations, the optical gateway further includes a screen pressure plate, which is placed on the back of the screen. The back of the front housing includes a second screw hole, and the screen pressure plate includes a third screw hole. The second and third screw holes are used to securely connect the screen to the front housing via screws, thereby expanding the specific implementation methods for securing the screen.

[0017] In some possible embodiments, the back of the front housing includes at least one retaining structure, and the screen is fixed within the area surrounded by the at least one retaining structure. The retaining structure facilitates quick alignment of the screen during installation and helps prevent the screen from moving up or down or left or right after installation due to external factors.

[0018] In some possible implementations, the circuit board includes a first USB interface, and the rear housing includes a hollow area. The first USB interface is used to connect to a data cable or an external device through the hollow area, thereby enriching the use scenarios of the optical gateway.

[0019] In some possible implementations, the first USB interface is a TYPE C interface, which is convenient for connecting to an external device that also uses a TYPE C interface.

[0020] In some possible implementations, the optical gateway further includes an external storage module that is fixedly connected to the rear housing and includes a second USB port. In other words, the external storage module is detachably fixed to the rear housing, thereby providing the optical gateway with more storage space as needed.

[0021] In some possible implementations, the second USB interface is a TYPE C interface, which is convenient for connecting to the first TYPE C USB interface.

[0022] In some possible implementations, the optical gateway further includes a beautification cover, which is used to cover the rear shell and is fixedly connected to the rear shell, thereby covering the more messy areas on the rear shell, making the back structure of the optical gateway smoother and more beautiful.

[0023] In some possible implementations, the cosmetic cover includes a knockout hole. While the knockout hole is fixed to the cosmetic cover, the user can manually remove it as needed, allowing the user to choose the optical splitter installation location on the optical gateway. This allows the optical splitter to be placed alongside the main gateway, eliminating the need to select a separate installation location for the optical splitter. This saves space and creates a more streamlined and aesthetically pleasing overall design.

[0024] In some possible implementations, the target area on the rear housing is used for detachable connection with the beam splitter, and the knockout hole structure is used to cover the target area. In other words, the target area is reserved on the rear housing, and the user can choose to fix the beam splitter to the target area using the buckle on the rear housing according to their own preferences, achieving reasonable space utilization and providing users with personalized choices.

[0025] In some possible implementations, the beautification cover further includes heat dissipation holes, which are helpful in improving the heat dissipation performance of the optical gateway.

[0026] In some possible implementations, the optical gateway is a master gateway or a slave gateway applied in a fiber to the room (FTTR) scenario, or an optical network unit (ONU) applied in a fiber to the home (FTTH) scenario.

[0027] In an embodiment of the present application, the space enclosed by the front and rear housings of the optical gateway is used to accommodate a circuit board, a screen, a fiber optic interface assembly, and an optical transceiver module. The optical transceiver module is electrically connected to the circuit board, and the fiber optic interface assembly is used to connect the optical fiber. The screen is fixedly connected to the front housing, and the screen is electrically connected to the circuit board. In addition, the front housing includes a light-transmitting area, and the image on the screen can be displayed through the light-transmitting area. In other words, in addition to realizing the traditional optical signal transmission function through the optical transceiver module and the fiber optic interface assembly, the optical gateway can also display the information that the user wants to know through the screen. For example, by displaying the time, weather, pictures, upload and download speeds, etc. on the screen, it provides a way for users to interact with the optical gateway, which is conducive to improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the FTTH system architecture;

[0029] Figure 2 is a schematic diagram of the FTTR system architecture;

[0030] FIG3 is a schematic diagram of a back perspective structure of a front housing of an optical gateway according to an embodiment of the present application;

[0031] FIG4 is a schematic diagram of a front perspective structure of a front housing of an optical gateway according to an embodiment of the present application;

[0032] FIG5 is another front perspective structural diagram of the front housing of the optical gateway according to an embodiment of the present application;

[0033] FIG6 is a schematic diagram of another back perspective structure of the front housing of the optical gateway in an embodiment of the present application;

[0034] FIG7 is a schematic diagram of a three-dimensional structure of the rear housing of the optical gateway in an embodiment of the present application;

[0035] FIG8 is a schematic structural diagram of a beautification cover of an optical gateway in an embodiment of the present application;

[0036] FIG9 is another structural diagram of the beautification cover of the optical gateway in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The embodiments of the present application provide an optical gateway that can display information that users want to know on a screen. For example, by displaying the time, weather, pictures, upload and download speeds, etc. on the screen, it provides a way for users to interact with the optical gateway, which is conducive to improving the user experience.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, rather than to limit a specific order or precedence. It should be understood that the above terms can be interchangeable where appropriate so that the embodiments described in this application can be implemented in a sequence other than that described in this application. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] To facilitate description of the relationship of one element to another element shown in the figures, spatial relational terms may be used herein, such as "under," "beneath," "below," "above," "on," etc. It should be understood that spatial relational terms are intended to include different orientations of the device in application or operation in addition to the orientation described in the figures. For example, if the device in the figures is flipped, an element described as "under other elements or features" or "under other elements or features" will be oriented as "above other elements or features." Thus, a term such as "under" may include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations), and the spatial descriptors herein are to be interpreted accordingly.

[0040] It should be understood that the embodiments of the present application can be applied to various optical access scenarios, including but not limited to fiber-to-the-home (FTTH) scenarios, such as an optical network unit (ONU), or fiber-to-the-room (FTTR) scenarios, such as an optical gateway in a whole-house network, where the optical gateway can be used to connect optical fibers and can be a master gateway or a slave gateway. The following first introduces the FTTR scenario and the FTTH scenario related to FTTR.

[0041] Figure 1 is a schematic diagram of the FTTH system architecture. The optical line terminal (OLT) is connected to the upper-layer network-side equipment (such as switches, routers, etc.), and the lower layer is connected to one or more optical distribution networks (ODNs). The ODN includes a passive optical splitter for optical power distribution, a trunk optical fiber connected between the passive optical splitter and the OLT, and a branch optical fiber connected between the passive optical splitter and the ONU. When transmitting data downstream, the ODN transmits the OLT downstream data to each ONU through the splitter, and the ONU selectively receives the downstream data carrying its own identification. When transmitting data upstream, the ODN combines the optical signals sent by N ONUs into one optical signal and transmits it to the OLT. The ONU provides a user-side interface for terminal access and is connected to the ODN at the same time.

[0042] On the basis of FTTH, in order to solve the problem of home network Wi-Fi coverage, optical fiber can be further extended into the residents' rooms and ONU can be installed inside the rooms. This application scenario is called FTTR.

[0043] Figure 2 shows a schematic diagram of the FTTR system architecture. FTTR and FTTH networks can be considered two-tier PON systems. In the first-tier PON system (FTTH), the OLT is deployed in a central office, and the ONU is deployed in a home information box. In the second-tier PON system (FTTR), the master gateway replaces the ONU in the FTTH and is deployed in the home information box. In the FTTR scenario, this master gateway performs similar functions to the OLT in FTTH scenarios, and it also performs similar functions to the ONU in FTTH scenarios. In other words, the master gateway in the FTTR combines the functions of an OLT and an ONU, serving as a network device that connects FTTH and FTTR. The slave gateway in the FTTR can be deployed in each room of the home to connect to the terminals. This slave gateway and the ONU in FTTH are essentially the same type of network device. The difference is that the ONU in FTTH is typically deployed in the information box and is usually separated from the terminals by an access point (AP). In FTTR, the slave gateway enters each room, and the slave gateway also has the function of an AP, which can directly connect to the terminal via WiFi.

[0044] It should be understood that multiple slave gateways can be deployed in the FTTR, each of which is connected to the branch port of the corresponding splitter. In addition, this application does not limit the number of splitters in the FTTR, and the master gateway is connected to the splitter in a cascade manner. The master gateway can achieve unified management and configuration of all slave gateways. For example, as the control center of the home network, the master gateway can configure the WiFi hotspots throughout the house into a unified network, optimize channels to avoid interference, and control the roaming and switching of terminals, reducing network switching time and improving user experience.

[0045] The optical gateway provided in the embodiment of the present application is described in detail below. Specifically, the structure of the optical gateway mainly includes a front shell, a rear shell, a screen, a circuit board, a fiber optic interface assembly and an optical transceiver module, wherein the front shell and the rear shell are fixed in a detachable manner, and the screen, the circuit board, the fiber optic interface assembly and the optical transceiver module are accommodated in the space surrounded by the front shell and the rear shell. The optical transceiver module is electrically connected to the circuit board, and the fiber optic interface assembly is used to connect the optical fiber, so that the optical transceiver module can transmit optical signals with other devices through the optical fiber connected to the fiber optic interface assembly. Specifically, the optical transceiver module can convert the electrical signal from the circuit board into an optical signal, and send the optical signal into the optical fiber through the fiber optic interface assembly; or, the optical transceiver module receives the optical signal from the optical fiber through the fiber optic interface assembly, and converts the optical signal into an electrical signal and sends it to the circuit board. The fiber optic interface assembly can be plugged into the optical transceiver module, or the fiber optic interface assembly can be connected to the optical transceiver module through other means such as optical fiber. It should be understood that the optical gateway provided in the embodiment of the present application maintains the traditional function of optical signal transmission. Therefore, the following text and the accompanying drawings no longer focus on further introducing and demonstrating the structure and function of the circuit board, optical fiber interface assembly and optical transceiver module, but mainly introduce the relevant features of the front shell, rear shell and screen.

[0046] Figure 3 is a schematic diagram of the back-side, three-dimensional structure of the front housing of the optical gateway according to an embodiment of the present application. As shown in Figure 3, the screen 20 is fixed to the back of the front housing 10 and is electrically connected to the circuit board via a flexible cable 201. To ensure that the user can see the image displayed on the screen 20 through the front of the front housing 10, a light-transmitting area 101 is provided on the front housing 10. The image on the screen 20 is displayed to the user through the light-transmitting area 101. It should be understood that the embodiment of the present application does not limit the size, shape, or fixed position of the screen 20, nor does it limit the size, shape, or fixed position of the light-transmitting area 101. As an example, the screen 20 and the light-transmitting area 101 are both rectangular and equal in size, and the positions of the screen 20 and the light-transmitting area 101 are also completely aligned. As another example, the screen 20 is rectangular and the light-transmitting area 101 is circular, with the light-transmitting area 101 being smaller than the screen 20. It should also be understood that the embodiment of the present application does not limit the images that the screen 20 can display. For example, the screen 20 can display time, weather, pictures, upload and download speeds, etc.

[0047] In some possible embodiments, as shown in FIG3 , the optical gateway further includes a screen protection sheet 30, which is used to be fixed to the light-transmitting area 101 of the front housing 10, thereby protecting the screen. Optionally, the front housing 10 and the screen protection sheet 30 can be integrally formed by two-color injection molding, which is beneficial to improving the stability and aesthetics of the overall structure. It should be understood that in order to better protect the screen, the size of the screen protection sheet 30 should not be less than the size of the screen 20, so that the screen protection sheet 30 completely covers the screen 20. As an example, the screen protection sheet 30 and the screen 20 are both rectangular in shape and equal in size, and the positions of the screen protection sheet 30 and the screen 20 are also completely aligned, wherein the circular area on the screen protection sheet 30 as shown in FIG3 is made of light-transmitting material, and the other areas are made of opaque material, so that the image displayed on the screen 20 is displayed through the circular area as shown in FIG3 .

[0048] Figure 4 is a schematic diagram of the front three-dimensional structure of the optical gateway in an embodiment of the present application. In some possible implementations, as shown in Figure 4 , the optical gateway further includes a transparent film 40, which is fixed to the front surface of the front housing 10, for example, by adhesive bonding. The provision of this transparent film 40 helps improve surface smoothness.

[0049] Figure 5 is another schematic diagram of the front three-dimensional structure of the optical gateway's front housing in an embodiment of the present application. In some possible implementations, the transparent film 40, in addition to the portion covering the light-transmitting area 101, may also be provided with a pattern, thereby enhancing the aesthetics of the optical gateway. For example, as shown in Figure 5, the time information on the screen is displayed in a circular area, and the remaining areas of the transparent film 40, except for the circular area, are provided with a lace pattern.

[0050] It should be noted that the present application does not limit the specific type of screen 20. As an example, the screen 20 can be a common display screen, with buttons 102 provided on the side of the front housing 10. The buttons 102 are electrically connected to the circuit board. The present application does not limit the number of buttons 102. The user can control the screen 20 through the buttons 102, for example, controlling the screen 20 to turn pages to display different images. As another example, the screen 20 can also be a touch screen display screen, which can be controlled by touch. Optionally, if a touch screen display screen is used, the screen protection sheet 30 and the transparent film 40 can be omitted, or a screen protection sheet 30 and a transparent film 40 that support touch functions can be used.

[0051] In one possible scenario, as shown in FIG3 , the screen 20 includes a mounting ear with a first screw hole 202 provided on the mounting ear, and a second screw hole 103 is provided on the back of the front housing 10. The first screw hole 202 and the second screw hole 103 are used to be fixedly connected by screws to fix the screen 20. During assembly, the first screw hole 202 and the second screw hole 103 can be aligned, and screws can be driven into the first screw hole 202 and the second screw hole 103 to fix the screen 20 to the front housing 10. It should be understood that the present application does not limit the specific number of the first screw holes 202 and the second screw holes 103. For example, as shown in FIG3 , the screen 20 includes two upper and lower mounting ears, and each of the two mounting ears includes two first screw holes, that is, the screen 20 includes a total of four first screw holes, and the corresponding positions on the back of the front housing 10 also include four second screw holes.

[0052] Figure 6 is another schematic diagram of the rear three-dimensional structure of the front housing of the optical gateway in an embodiment of the present application. In another possible scenario, as shown in Figure 6, the optical gateway includes a screen pressure plate 50, which is disposed on the rear side of the screen 20. The screen pressure plate 50 includes a third screw hole 501, and a second screw hole 103 is disposed on the rear side of the front housing 10. The third screw hole 501 and the second screw hole 103 are used to securely connect via screws to secure the screen 20. During assembly, the third screw hole 501 can be aligned with the second screw hole 103, and screws can be driven into the third screw hole 501 and the second screw hole 103 to secure the screen 20 to the front housing 10. It should be understood that the present application does not limit the specific number of second screw holes 103 and third screw holes 501. For example, as shown in Figure 6, the number of second screw holes 103 and third screw holes 501 is four.

[0053] Optionally, as shown in FIG3 , the back of the front housing 10 further includes at least one limiting structure 104, and the screen 20 is fixed in the area surrounded by the limiting structure 104. By providing the limiting structure 104, on the one hand, it is convenient to quickly align the screen 20 to a fixed position when installing it, and on the other hand, it is also helpful to avoid the screen 20 from shaking up and down or left and right after installation due to external reasons. It should be understood that the embodiment of the present application does not limit the specific design method and number of the limiting structures 104. For example, as shown in FIG3 , four limiting structures are respectively provided on the back of the front housing 10 at positions corresponding to the four corners of the rectangular screen 20. For another example, a rectangular limiting structure is provided on the back of the front housing 10 so that the rectangular screen 20 can be just fixed in the rectangular limiting structure.

[0054] FIG7 is a schematic diagram of a three-dimensional structure of the rear shell of the optical gateway in an embodiment of the present application. In some possible embodiments, as shown in FIG7 , the rear shell 60 includes a hollow area 601, and the position of the first USB interface on the circuit board is aligned with the position of the hollow area 601 on the rear shell 60, so that the first USB interface can be connected to a data cable or an external device through the hollow area 601, thereby enriching the use scenarios of the optical gateway. As an example, the first USB interface can specifically be a TYPE C interface, which is convenient for connecting a data cable or an external device using a TYPE C interface. It should be understood that the embodiment of the present application does not limit the number and fixed position of the hollow area 601, which depends specifically on the number and fixed position of the first USB interface on the circuit board.

[0055] Optionally, an external storage module 70 can be removably connected to the rear housing 60 of the optical gateway to provide the optical gateway with more storage space as needed. For example, the external storage module 70 is secured to the rear housing 60 via a latch 701 and can be a solid-state drive (SSD). The external storage module 70 includes a second USB port that can be connected to the first USB port on the circuit board. For example, if the first USB port is a Type C port, the second USB port is also a Type C port.

[0056] Figure 8 is a schematic diagram of one structural aspect of the optical gateway's aesthetic cover in an embodiment of the present application. Figure 9 is a schematic diagram of another structural aspect of the optical gateway's aesthetic cover in an embodiment of the present application. In some possible embodiments, as shown in Figures 8 and 9, the optical gateway also includes an aesthetic cover 80. The aesthetic cover 80 is used to cover the rear housing 60 and is fixedly connected to the rear housing 60, thereby covering the more cluttered areas on the rear housing 60 and making the back structure of the optical gateway smoother and more aesthetically pleasing. The aesthetic cover 80 includes heat dissipation holes, which help improve the heat dissipation performance of the optical gateway.

[0057] In some possible scenarios, as shown in Figures 7 and 9, taking the optical gateway as the main gateway in an FTTR scenario, the rear housing 60 also has a reserved target area 602. The user can choose to secure the optical splitter 90 to the target area 602 using the clip 603 on the rear housing 60 according to their preference. This allows the optical splitter to be placed together with the main gateway, eliminating the need to select a separate installation location for the optical splitter, saving space and improving the overall simplicity and aesthetics. Optionally, the target area 602 can be a location on the rear housing 60 for attaching a label.

[0058] Correspondingly, the beautifying cover 80 is provided with a knock-out hole structure 801 for covering the target area 602, and the knock-out hole structure 801 maintains a unified design style with the beautifying cover 80 as a whole. Although the knock-out hole structure 801 is fixed on the beautifying cover 80, the user can manually remove the knock-out hole structure 801 according to their own needs, thereby exposing the target area 602 on the rear housing 60, making it easier to install the spectrometer 90 in the target area 602. It should be understood that if the spectrometer is installed on the target area 602, the input port 901 and the output port 902 of the spectrometer can extend from the beautifying cover 80 to facilitate wiring. Of course, the user can also choose to install the spectrometer 90 in other locations such as a wall, so as not to destroy the knock-out hole structure 801 on the beautifying cover 80.

[0059] As can be seen from the above description, in the embodiment of the present application, the space enclosed by the front and rear housings of the optical gateway is used to accommodate a circuit board, a screen, an optical fiber interface assembly, and an optical transceiver module. The optical transceiver module is electrically connected to the circuit board, and the optical fiber interface assembly is used to connect the optical fiber. The screen is fixedly connected to the front housing, and the screen is electrically connected to the circuit board. In addition, the front housing includes a light-transmitting area, and the image on the screen can be displayed through the light-transmitting area. In other words, in addition to realizing the traditional optical signal transmission function through the optical transceiver module and the optical fiber interface assembly, the optical gateway can also display the information that the user wants to know through the screen. For example, by displaying the time, weather, pictures, upload and download speeds, etc. on the screen, it provides a way for users to interact with the optical gateway, which is conducive to improving the user experience.

[0060] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the protection scope of the present application.

Claims

1. An optical gateway, characterized in that: The optical gateway includes a front housing, a rear housing, a screen, a circuit board, an optical fiber interface assembly and an optical transceiver module; The front shell is fixedly connected to the rear shell, and the space enclosed by the front shell and the rear shell is used to accommodate the screen, the circuit board, the optical fiber interface assembly and the optical transceiver module. The optical transceiver module is electrically connected to the circuit board, and the optical fiber interface assembly is used to connect the optical fiber. The screen is fixedly connected to the front shell, and the screen is electrically connected to the circuit board. The front shell includes a light-transmitting area, and the picture on the screen is displayed through the light-transmitting area.

2. The optical gateway according to claim 1, wherein: The optical gateway further includes a screen protection sheet fixed to the light-transmitting area of ​​the front housing.

3. The optical gateway according to claim 2, wherein: The screen protection sheet is integrally formed with the front housing.

4. The optical gateway according to any one of claims 1 to 3, wherein: The optical gateway further includes a transparent film fixed on the front surface of the front housing.

5. The optical gateway according to claim 4, characterized in that: The other parts of the transparent film except for the part covering the light-transmitting area include patterns.

6. The optical gateway according to any one of claims 1 to 5, characterized in that: The screen is a touch display screen.

7. The optical gateway according to any one of claims 1 to 6, characterized in that: The side surface of the front housing also includes a button, and the button is electrically connected to the circuit board.

8. The optical gateway according to any one of claims 1 to 7, characterized in that: The screen includes a first screw hole, and the back of the front housing includes a second screw hole. The first screw hole and the second screw hole are used for fixed connection by screws.

9. The optical gateway according to any one of claims 1 to 7, wherein: The optical gateway further includes a screen pressing plate, which is placed on the back of the screen. The back of the front housing includes a second screw hole, and the screen pressing plate includes a third screw hole. The second screw hole and the third screw hole are used for fixed connection by screws.

10. The optical gateway according to any one of claims 1 to 9, characterized in that: The back side of the front housing includes at least one limiting structure, and the screen is fixed in an area surrounded by the at least one limiting structure.

11. The optical gateway according to any one of claims 1 to 10, characterized in that: The circuit board includes a first USB interface, the rear housing includes a hollow area, and the first USB interface is used to connect to a data cable or an external device through the hollow area.

12. The optical gateway according to claim 11, wherein: The first USB interface is a TYPE C interface.

13. The optical gateway according to any one of claims 1 to 12, characterized in that: The optical gateway further includes an external storage module, which is fixedly connected to the rear housing and includes a second USB interface.

14. The optical gateway according to claim 13, wherein: The second USB interface is a TYPE C interface.

15. The optical gateway according to any one of claims 1 to 14, characterized in that: The optical gateway further includes a beautification cover, which is used to cover the rear housing and is fixedly connected to the rear housing.

16. The optical gateway according to claim 15, characterized in that: The beautifying cover includes a knock-out hole structure.

17. The optical gateway according to claim 16, wherein: The target area on the rear housing is used for detachable connection with the optical splitter, and the knock-out hole structure is used for covering the target area.

18. The optical gateway according to any one of claims 15 to 17, characterized in that: The beautification cover also includes heat dissipation holes.

19. The optical gateway according to any one of claims 1 to 18, wherein: The optical gateway is a master gateway or a slave gateway applied to a fiber-to-the-room (FTTR) scenario, or an optical network unit (ONU) applied to a fiber-to-the-home (FTTH) scenario.

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