ONU switch convenient for operation and maintenance detection of EPON system

Abstract

The utility model relates to an ONU (Optical Network Unit) switch convenient for operation and maintenance detection of an EPON (Ethernet Passive Optical Network) system. The ONU switch comprises a shell, and a first circuit board and a second circuit board which are arranged in the shell, the shell comprises a lower shell and an upper shell which are covered with each other, and the second circuit board is arranged on one side, close to the upper shell, of the first circuit board; the first circuit board is used for light / electricity and electricity / light conversion and data transmission; the second circuit board is electrically connected with the first circuit board, the second circuit board is used for collecting network information, the second circuit board is connected with a server background, and an intelligent operation and maintenance system of the server background constructs a network topology structure according to the information collected by the second circuit board. According to the invention, the second circuit board for realizing the topology function is directly installed in the originally designed case, so that the topology function of the ONU switch is improved, the operation and maintenance detection efficiency of an EPON system is improved, and the purpose of intelligent operation and maintenance of communication equipment is realized; and the redesign of the casing and the transformation of the production line are reduced, and the production cost of the ONU switch is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of communication equipment, and in particular to an ONU switch that facilitates operation and maintenance detection of an EPON system. Background Art

[0002] EPON (Ethernet Passive Optical Network) is an Ethernet-based point-to-multipoint fiber-optic access technology that distributes optical signals to multiple users, enabling high-speed data transmission and shared bandwidth. EPON operation and maintenance testing is crucial to ensuring network stability and performance. Regular maintenance testing can promptly identify and resolve network issues, prevent failures, optimize network resource allocation, and improve service quality.

[0003] The EPON system primarily consists of an optical line terminal (OLT), an optical network unit (ONU) / optical network terminal (ONT), and a passive optical distribution network (ODN). The key component of the ONU is the ONU (Optical Network Unit) switch, which converts optical signals into electrical signals and delivers them to end users via Ethernet interfaces.

[0004] The main functions of the ONU switch include optical / electrical and electrical / optical conversion, user data buffering and forwarding, and communication with the OLT to enable the transmission of broadband data, voice, and video services. Therefore, the ONU switch is a very important part of the EPON system operation and maintenance.

[0005] In existing technology, an ONU switch consists of a housing and an ONU circuit board. The ONU circuit board is fixed within the housing, which has a communication hole for installing the ONU circuit board's interface. The ONU switch transmits broadband data, voice, and video services. If the communication transmission channel is interrupted, the server platform can only detect whether the ONU switch is online, but cannot determine the specific location of the fault (for example, where the fault occurs in the device, trunk fiber, or branch fiber). This increases the difficulty of EPON system operation and maintenance detection, making it difficult for EPON systems to meet the requirements of intelligent operation and maintenance in the communications field.

[0006] To improve the operation and maintenance efficiency of the EPON system, so that staff can quickly find fault points and reduce operation and maintenance costs and response time, topology can be used to improve the intelligent operation and maintenance performance of the ONU switch.

[0007] The topology function automatically identifies network devices, resources, and link relationships, generating network topology diagrams. These diagrams not only display the physical connections of devices but also provide performance indicators, helping operators quickly locate network communication faults.

[0008] If the circuit implementing the topology function is directly integrated into the ONU circuit board of the ONU switch, the size of the ONU circuit board and the housing will change; thus, the housing needs to be redesigned and a new housing production line needs to be built, which increases the cost of the ONU switch modification. Utility Model Content

[0009] In order to improve the operation and maintenance detection efficiency of the EPON system and reduce the production cost of the ONU switch, the present application provides an ONU switch that facilitates the operation and maintenance detection of the EPON system.

[0010] This application provides an ONU switch that facilitates EPON system operation and maintenance testing, using the following technical solutions:

[0011] An ONU switch that facilitates EPON system operation and maintenance testing includes a housing, a first circuit board, and a second circuit board. The housing includes a lower shell and an upper shell that cover each other, the lower shell and the upper shell enclosing a accommodating chamber, the first circuit board and the second circuit board being fixedly disposed in the accommodating chamber, and the second circuit board being disposed on a side of the first circuit board near the upper shell. The lower shell is provided with a plurality of first and second connecting holes, the first connecting holes being used for mounting interfaces of the first circuit board, and the second connecting holes being used for mounting interfaces of the second circuit board. The first circuit board is used for optical / electrical and electrical / optical conversion and data transmission. The second circuit board is electrically connected to the first circuit board and is used for collecting information on the locations and connection relationships of network devices. The second circuit board is also connected to a server backend, and an intelligent operation and maintenance system of the server backend constructs a network topology based on the information collected by the second circuit board.

[0012] By adopting this technical solution, a second circuit board for implementing the topology function is placed directly between the first circuit board and the upper housing, and a second communication hole is provided in the upper housing to accommodate the second circuit board's interface. Installing the second circuit board directly within the original housing enhances the topology functionality of the ONU switch and improves the O&M efficiency of the EPON system, achieving intelligent O&M for communications equipment. This also reduces the need for housing redesign and production line modifications, lowering ONU switch production costs.

[0013] Optionally, the second circuit board is provided with an avoidance through-hole, and the avoidance through-hole is used to avoid the capacitor of the first circuit board.

[0014] By adopting the above technical solution and providing an avoidance through hole on the second circuit board, it is convenient for workers to install the second circuit board in the originally designed casing, thereby improving the assembly efficiency of the ONU switch.

[0015] Optionally, a avoidance distance is provided between the side wall of the avoidance through hole and the capacitor.

[0016] By adopting the above technical solution, an avoidance distance is provided between the side wall of the avoidance through hole and the capacitor on the first circuit board. On the one hand, it is convenient for the staff to install the second circuit board; on the other hand, the avoidance distance between the avoidance through hole and the capacitor is beneficial to the heat dissipation of the first circuit board, thereby improving the stability of the operation of the ONU switch.

[0017] Optionally, it further includes a plurality of connection components, which are fixed between the first circuit board and the second circuit board.

[0018] By adopting the above technical solution, the second circuit board is fixedly connected to the first circuit board through the connecting assembly, thereby facilitating the assembly of the ONU switch by the staff.

[0019] Optionally, the connecting assembly includes a copper column and a connecting bolt, the copper column includes a threaded section and a supporting section, the supporting section is provided with a threaded groove on the side away from the threaded section; the first circuit board is provided with a first mounting hole, the threaded section passes through the first mounting hole, and the threaded section is threadedly connected to the lower shell, and the supporting section is abutted against the first circuit board; the second circuit board is abutted against the supporting section, and the second circuit board is provided with a second mounting hole, the connecting bolt passes through the second mounting hole, and the connecting bolt is threadedly connected to the side wall of the threaded groove.

[0020] By adopting the above technical solution, the threaded section of the copper post is passed through the first mounting hole, which is then threadedly connected to the lower housing to securely connect the first circuit board to the lower housing. Subsequently, the second circuit board is placed on the copper post's support section. After the connecting bolt is passed through the second mounting hole, the connecting bolt is threadedly connected to the sidewall of the threaded groove, thereby securing the second circuit board to the first current board and the lower housing.

[0021] Optionally, the connecting assembly further includes a gasket, which is arranged between the connecting bolt and the second circuit board.

[0022] By adopting the above technical solution and arranging a gasket between the connecting bolt and the second circuit board, the fixing effect of the connecting bolt on the second circuit board is improved.

[0023] Optionally, the second circuit board is further provided with ventilation holes.

[0024] By adopting the above technical solution and providing ventilation holes on the second circuit board, heat dissipation of the first circuit board is facilitated.

[0025] Optionally, a plurality of heat dissipation fins are provided on a side of the upper shell away from the lower shell, and the heat dissipation fins are integrally formed with the upper shell.

[0026] By adopting the above technical solution and arranging heat dissipation fins on the upper shell, the heat dissipation performance of the casing is improved.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The second circuit board that implements the topology function is directly installed inside the original design housing. This improves the topology function of the ONU switch and the operation and maintenance detection efficiency of the EPON system, thereby achieving the goal of intelligent operation and maintenance of communication equipment. It also reduces the need for housing redesign and production line modification, reducing the production cost of the ONU switch.

[0029] 2. By setting a through hole on the second circuit board, it is easier for workers to install the second circuit board in the original design of the housing, improving the assembly efficiency of the ONU switch;

[0030] 3. The threaded section of the copper post is threaded through the first mounting hole and connected to the threads of the lower housing to securely connect the first circuit board to the lower housing. Subsequently, the second circuit board is placed on the copper post's support section. Connecting bolts are threaded through the second mounting hole and then threaded into the sidewalls of the threaded groove, thereby securely connecting the second circuit board to the first current board and the lower housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the ONU switch in this embodiment.

[0032] Figure 2 It is a partial exploded view of the ONU switch in this embodiment.

[0033] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0034] Figure 4 It is a partial exploded view of the ONU switch in this embodiment.

[0035] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0036] Figure 6 It is a structural exploded diagram of the connection component in this embodiment.

[0037] Explanation of the accompanying drawings: 1. Casing; 11. Lower shell; 111. Support column; 112. First connecting hole; 113. Second connecting hole; 12. Upper shell; 121. Heat dissipation fin; 2. First circuit board; 21. First mounting hole; 3. Second circuit board; 31. Second mounting hole; 32. Avoidance hole; 33. Air vent; 4. Connecting assembly; 41. Copper column; 411. Threaded section; 412. Support section; 413. Threaded groove; 42. Connecting bolt; 43. Gasket. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-6 This application is described in further detail.

[0039] The embodiment of the present application discloses an ONU switch that facilitates EPON system operation and maintenance detection. Figure 1 and Figure 2 The ONU switch for EPON system operation and maintenance detection includes a housing 1, a first circuit board 2, a second circuit board 3 and a connecting component 4 fixed in the housing 1, and the connecting component 4 is used to fix the positions of the first circuit board 2 and the second circuit board 3.

[0040] Reference Figure 2 and Figure 3 The housing 1 comprises a lower shell 11 and an upper shell 12, which cover each other. The lower shell 11 and the upper shell 12 enclose a housing chamber, in which the first circuit board 2 and the second circuit board 3 are fixedly mounted. Several support columns 111 are fixedly mounted on the side of the lower shell 11 near the upper shell 12. The first circuit board 2 is arranged horizontally and fixedly connected to the support columns 111 by bolts. The first circuit board 2 is used for optical / electrical and electrical / optical conversion and data transmission, that is, the first circuit board 2 is used to implement the ONU function of the ONU switch.

[0041] Reference Figure 4 and Figure 5 The second circuit board 3 is disposed on the side of the first circuit board 2 near the upper housing 12 and is fixedly connected to the housing. The second circuit board 3 is electrically connected to the first circuit board 2 and is used to collect information about the locations and connections of network devices. The second circuit board 3 is also connected to the server backend, where the intelligent operation and maintenance system constructs the network topology based on the information collected by the second circuit board 3. Specifically, the second circuit board 3 is used to implement the topology function of the ONU switch, enabling intelligent operation and maintenance of the ONU switch, thereby improving the operation and maintenance detection efficiency of the EPON system. This enables the OBU switch to have OVDU (Open Virtualized Distributed Unit) functionality, i.e., intelligent operation and maintenance functionality based on topology generation.

[0042] Reference Figure 1 and Figure 4 The lower housing 11 is provided with a plurality of first communication holes 112 and second communication holes 113. The first communication holes 112 are used to install the interfaces of the first circuit board 2, and the second communication holes 113 are used to install the interfaces of the second circuit board 3. Furthermore, the upper housing 12 is provided with a plurality of heat dissipation fins 121 on the side away from the lower housing 11. The heat dissipation fins 121 are integrally formed with the upper housing 12. The provision of the heat dissipation fins 121 on the upper housing 12 improves the heat dissipation performance of the housing 1.

[0043] Reference Figures 2 to 5 In this embodiment, the second circuit board 3 is fixedly connected to the first circuit board 2 and the lower housing 11 through the connecting assembly 4, which facilitates the assembly of the ONU switch. In other embodiments, the second circuit board 3 can also be bolted to the upper housing 12.

[0044] Reference Figures 2 to 5 The connecting component 4 is fixed between the first circuit board 2 and the second circuit board 3, and the connecting component 4 is provided in a plurality of groups, and the plurality of groups of connecting components 4 are arranged at intervals to improve the stability of the installation of the second circuit board 3.

[0045] Reference Figure 5 and Figure 6 The connecting assembly 4 includes a copper column 41, a connecting bolt 42 and a gasket 43; the copper column 41 includes a threaded section 411 and a supporting section 412, and the supporting section 412 is provided with a threaded groove 413 on the side away from the threaded section 411. The first circuit board 2 is provided with a first mounting hole 21, the threaded section 411 passes through the first mounting hole 21, and the threaded section 411 is threadedly connected to the supporting column 111 of the lower shell 11, and

[0046] Reference Figure 5 and Figure 6 The support section 412 abuts and secures the first circuit board 2. The other end of the support section 412 abuts the second circuit board 3. The second circuit board 3 defines a second mounting hole 31, through which a connecting bolt 42 passes. The connecting bolt 42 is threadedly engaged with the sidewall of the threaded groove 413. A washer 43 is disposed between the connecting bolt 42 and the second circuit board 3 to enhance the securing effect of the connecting bolt 42 on the second circuit board 3.

[0047] Reference Figure 5 and Figure 6The worker inserts the threaded section 411 of the copper pillar 41 through the first mounting hole 21. The threaded section 411 of the copper pillar 41 then engages with the threads of the lower housing 11, securing the first circuit board 2 to the lower housing 11. Subsequently, the second circuit board 3 is placed on the support section 412 of the copper pillar 41. After the connecting bolt 42 is inserted through the second mounting hole 31, it is threadedly engaged with the sidewall of the threaded groove 413, securing the second circuit board 3 to the first current board and the lower housing 11. The provision of the connecting assembly 4 facilitates assembly of the ONU switch.

[0048] Reference Figure 2 and Figure 3 The second circuit board 3 is provided with a clearance hole 32, which is used to clear the capacitors on the first circuit board 2. A clearance distance is provided between the sidewalls of the clearance hole 32 and the capacitors. This arrangement facilitates installation of the second circuit board 3 within the original housing 1, improving ONU switch assembly efficiency. Furthermore, the clearance distance between the clearance hole 32 and the capacitors facilitates heat dissipation from the first circuit board 2, thereby enhancing ONU switch operation stability.

[0049] Reference Figure 3 and Figure 4 At the same time, ventilation holes 33 are also provided on the second circuit board 3 to further improve the heat dissipation effect of the first circuit board 2.

[0050] The implementation principle of an ONU switch that facilitates EPON system operation and maintenance detection in the embodiment of the present application is as follows:

[0051] Reference Figures 1 to 6 In this application, the second circuit board 3, which implements the topology function, is directly positioned between the first circuit board 2 and the upper housing 12. A second communication hole 113 is provided in the upper housing 12 to accommodate the interface of the second circuit board 3. This allows the second circuit board 3, which implements the topology function, to be directly installed within the originally designed housing 1. This improves the topology function of the ONU switch and the operation and maintenance efficiency of the EPON system, thereby achieving intelligent operation and maintenance of communication equipment. This also reduces the need for housing 1 redesign and production line modifications, thereby reducing the production cost of the ONU switch.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An ONU switch that facilitates EPON system operation and maintenance testing, characterized by: The invention comprises a housing (1), a first circuit board (2) and a second circuit board (3); the housing (1) comprises a lower housing (11) and an upper housing (12) which cover each other, the lower housing (11) and the upper housing (12) enclose a receiving chamber, the first circuit board (2) and the second circuit board (3) are fixed in the receiving chamber, and the second circuit board (3) is arranged on the side of the first circuit board (2) close to the upper housing (12); the lower housing (11) is provided with a plurality of first connecting holes (112) and second connecting holes (113), the first connecting holes (112) and the second connecting holes (113) are provided on the lower housing (11), and the first connecting holes (112) and the second connecting holes (113) are provided on the lower housing (11). 12) is used to install an interface of the first circuit board (2), and the second connecting hole (113) is used to install an interface of the second circuit board (3); the first circuit board (2) is used for optical / electrical and electrical / optical conversion and data transmission; the second circuit board (3) is electrically connected to the first circuit board (2), the second circuit board (3) is used to collect the location of network devices and connection relationship information of network devices, and the second circuit board (3) is connected to the server background, and the intelligent operation and maintenance system of the server background constructs a network topology structure according to the information collected by the second circuit board (3).

2. The ONU switch for facilitating EPON system operation and maintenance detection according to claim 1, characterized in that: The second circuit board (3) is provided with an avoidance through hole (32), and the avoidance through hole (32) is used to avoid the capacitor of the first circuit board (2).

3. The ONU switch for facilitating EPON system operation and maintenance detection according to claim 2, characterized in that: A avoidance distance is provided between the hole side wall of the avoidance through hole (32) and the capacitor.

4. The ONU switch for facilitating EPON system operation and maintenance detection according to claim 1, characterized in that: It also includes a plurality of groups of connection components (4), which are fixed between the first circuit board (2) and the second circuit board (3).

5. The ONU switch for facilitating EPON system operation and maintenance detection according to claim 4, characterized in that: The connecting assembly (4) includes a copper column (41) and a connecting bolt (42), the copper column (41) includes a threaded section (411) and a supporting section (412), and the supporting section (412) is provided with a threaded groove (413) on a side away from the threaded section (411); the first circuit board (2) is provided with a first mounting hole (21), the threaded section (411) passes through the first mounting hole (21), and the threaded section (411) is threadedly connected to the lower shell (11), and the supporting section (412) is in contact with the first circuit board (2); the second circuit board (3) is in contact with the supporting section (412), and the second circuit board (3) is provided with a second mounting hole (31), the connecting bolt (42) passes through the second mounting hole (31), and the connecting bolt (42) is threadedly connected to the groove side wall of the threaded groove (413).

6. The ONU switch for facilitating EPON system operation and maintenance detection according to claim 5, characterized in that: The connecting assembly (4) further comprises a gasket (43), wherein the gasket (43) is arranged between the connecting bolt (42) and the second circuit board (3).

7. The ONU switch for facilitating EPON system operation and maintenance detection according to claim 1, characterized in that: The second circuit board (3) is also provided with a ventilation hole (33).

8. The ONU switch for facilitating EPON system operation and maintenance detection according to claim 1, characterized in that: A plurality of heat dissipation fins (121) are provided on a side of the upper housing (12) away from the lower housing (11), and the heat dissipation fins (121) are integrally formed with the upper housing (12).

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