Multi-port test communication device

Abstract

The utility model relates to the technical field of reaction flywheel testing, in particular to a multi-port testing communication device, which comprises a box body, a main control board assembly and an indicator light module, wherein the main control board assembly and the indicator light module are arranged in the box body and are electrically connected; the main control board assembly comprises a communication module, a processor, a power supply connector, a network port connector and a plurality of test port connectors which are installed on a main control circuit board, the communication module, the power supply connector and the network port connector are electrically connected with the processor, a plurality of RS422 chips and a plurality of CAN chips are arranged on the communication module in parallel, and the RS422 chips and the CAN chips are electrically connected with the processor. The plurality of RS422 chips and the plurality of CAN chips are matched and divided into communication groups of which the number is the same as that of the test port connectors, and the plurality of communication groups are correspondingly connected with the plurality of test port connectors respectively. The multi-port test communication device can be used for data monitoring and testing of a plurality of flywheels at the same time, communication interfaces of the multi-port test communication device and communication interfaces of most flywheels in the market are unified, the test efficiency is high, and the universality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction flywheel testing, in particular to a multi-port testing communication device suitable for batch testing of reaction flywheels. Background Art

[0002] The existing reaction flywheel communication is basically divided into two types: CAN communication and serial communication. These two communication methods have their own advantages and disadvantages, and both have a high usage rate.

[0003] When batch testing reaction flywheels using the existing test system (including the flywheel comprehensive test intelligent measurement and control system and the flywheel running-in test intelligent test system), multiple serial port devices and CAN devices are required to realize the communication connection between the test system and multiple flywheels to be tested. At the same time, the number of network ports on the test system is limited, and a multi-port switch is required to realize data exchange between the serial port devices, CAN devices and the test system.

[0004] The multi-channel serial port devices currently on the market are constrained by the size of the test system during batch testing. They also have to consider the system circuit and communication connections. They can only test about 10 flywheels at the same time, which cannot fully utilize the effectiveness of the test system. Utility Model Content

[0005] The utility model provides a multi-port test communication device suitable for batch testing of reaction flywheels, so as to solve the technical problems in the prior art of poor integration of multi-channel serial port devices, complex connection structure and low reliability during batch testing.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] The utility model provides a multi-port test communication device, comprising a box body in the shape of a rectangular cavity as a whole, a main control board assembly installed in the box body and electrically connected, and an indicator light module, the main control board assembly is used to connect a flywheel to be tested with a test system and transmit signal data between the flywheel to be tested and the test system, the indicator light module is used to display the signal status input from the flywheel to be tested and the signal status output from the test system to the flywheel to be tested, the main control board assembly comprises a main control circuit board and a communication module, a processor, a power connector, a network port connector and a plurality of test port connectors installed on the main circuit board, the communication module, the power connector and the network port connector are respectively electrically connected to the processor, and the plurality of test port connectors are respectively connected to the communication module;

[0008] Among them, the communication module is equipped with multiple RS422 chips and multiple CAN chips in parallel. The multiple RS422 chips and multiple CAN chips are divided into communication groups with the same number of test port connectors. The multiple communication groups are respectively connected to the multiple test port connectors.

[0009] Preferably, the box body includes a bottom plate, a cover plate, a front side plate and a rear side plate, the left and right sides of the bottom plate each have a first bent portion extending upward, the left and right sides of the cover plate each have a second bent portion extending downward, the first bent portion and the second bent portion on the same side in the left and right directions abut against each other, so that the bottom plate and the cover plate are combined to form a U-shaped structure, the main control board assembly and the indicator light module are respectively mounted on the bottom plate and the cover plate and are located in the U-shaped structure, and the front side plate and the rear side plate are respectively mounted on the front and rear sides of the U-shaped structure.

[0010] Preferably, the base plate includes a base plate body, a first bent portion vertically upward and symmetrically connected to the left and right sides of the base plate body, the cover plate includes a cover plate body, the cover plate body has the same outer dimensions as the base plate body, the second bent portion vertically downward and symmetrically connected to the left and right sides of the cover plate body, and the main control board assembly and the indicator light module are respectively installed on the base plate body and the cover plate body.

[0011] Preferably, the front side panel includes a front side panel body and a third bending portion, the rear side panel includes a rear side panel body and a fourth bending portion, the front side panel body and the rear side panel body have the same outer dimensions, the third bending portion is vertically backward and symmetrically arranged on the left and right sides of the front side panel body, the fourth bending portion is vertically forward and symmetrically arranged on the left and right sides of the rear side panel body, and the front side panel and the rear side panel are respectively connected to the front and rear sides of the bottom plate and the cover plate through the third bending portion and the fourth bending portion.

[0012] Preferably, a first mounting hole H1 is provided on the front and rear sides of the first bending portion and the second bending portion, and a second mounting hole H2 corresponding to the first mounting hole H1 is provided on the upper and lower sides of the third bending portion and the fourth bending portion, and the bottom plate, cover plate, front side plate and rear side plate are detachably connected through the first mounting hole H1 and the second mounting hole H2.

[0013] Preferably, the front side panel body is provided with positioning holes that match the size of the power connector, the network port connector and multiple test port connectors, and the base plate body is provided with support columns. The main control board assembly is fixedly mounted on the base plate body through the support columns, and the power connector, the network port connector and multiple test port connectors respectively extend from the corresponding positioning holes opened on the front side panel body.

[0014] Preferably, the indicator light module includes an indicator light circuit board and multiple pairs of input indicator lights and output indicator lights installed on the indicator light circuit board. The cover body is provided with mounting holes and light-transmitting holes. The indicator light module is fixedly mounted on the cover body through the mounting holes, and multiple pairs of input indicator lights and output indicator lights respectively extend into the corresponding light-transmitting holes.

[0015] Preferably, end surfaces of the first bending portion and the second bending portion are both provided with L-shaped steps, and the first bending portion and the second bending portion are abutted via the L-shaped steps.

[0016] Preferably, the box body further comprises an indicator light film, which is pasted on the top of the cover body and corresponds to the light-transmitting hole, and is used to identify the function of the indicator light.

[0017] Preferably, the second mounting hole H2 is a waist-shaped hole.

[0018] Beneficial effects of the utility model:

[0019] 1. The multi-port test communication device in this solution can facilitate data monitoring of multiple flywheels at the same time. It is unified with the communication interface of most flywheels on the market, and can also ensure orderly wiring cables, thereby improving test efficiency.

[0020] 2. The box structure of the multi-port test communication device in this solution is simple and easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the multi-port test communication device in the present utility model;

[0022] Figure 2 This is a schematic diagram of the bottom plate structure of the multi-port test communication device box body in the present utility model;

[0023] Figure 3 This is a schematic diagram of the cover structure of the multi-port test communication device box body in the present utility model;

[0024] Figure 4 This is a schematic diagram of the front side panel structure of the multi-port test communication device box body in the present utility model;

[0025] Figure 5 This is a schematic diagram of the rear side panel structure of the multi-port test communication device box body in the present utility model;

[0026] Figure 6 This is a schematic diagram of the connection between the bottom plate and the cover plate of the multi-port test communication device box in the present invention;

[0027] Figure 7 This is a schematic diagram of the overall structure of the main control board assembly and LED module in the multi-port test communication device of the present invention;

[0028] Figure 8 This is a schematic diagram of the framework of the main control board assembly and LED module in the multi-port test communication device of the present invention;

[0029] Description of reference numerals:

[0030] 1. Box body; 2. Main control board assembly; 3. Indicator light module;

[0031] 11. Bottom plate; 111. First bending portion; 112. Bottom plate body; 113. Support column; 114. Fixing portion; H1. First mounting hole;

[0032] 12. Cover plate; 121. Second bending portion; 122. Cover plate body; 123. Mounting hole; 124. Light transmission hole;

[0033] 13. Front side panel; 131. Front side panel body; 132. Third bend; 133. Power connector positioning hole; 134. Network port connector positioning hole; 135. Test port connector positioning hole; H2. Second mounting hole;

[0034] 14. Rear side panel; 141. Rear side panel body; 142. Fourth bending portion;

[0035] 21. Main control circuit board; 22. Communication module; 23. Processor; 24. Power connector; 25. Network port connector; 26. Test port connector; 221. RS422 chip; 222. CAN chip;

[0036] 31. Indicator light circuit board; 32. Input indicator light; 33. Output indicator light. DETAILED DESCRIPTION

[0037] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. In the description of the present invention, the relevant orientation or position relationship is based on Figure 1 The directions or positional relationships shown, where "up", "down", "left", "right", "front", and "back" refer to Figure 1 It should be understood that these directional terms are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0038] In addition, the terms "first," "second," and so on in this utility model are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number or order of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0039] Reference Figure 1 、 Figure 7 and Figure 8, an embodiment of the present application provides a multi-port test communication device, including a box body 1 in the shape of a rectangular cavity as a whole, a main control board assembly 2 installed in the box body 1 and electrically connected, and an indicator light module 3, the main control board assembly 2 is used to connect the flywheel to be tested with the test system and transmit signal data between the flywheel to be tested and the test system, the indicator light module 3 is used to display the signal status input from the flywheel to be tested and the signal status output from the test system to the flywheel to be tested, the main control board assembly 2 includes a main control circuit board 21 and a communication module 22, a processor 23, a power connector 24, a network port connector 25 and a plurality of test port connectors 26 installed on the main circuit board 21, the communication module 22, the power connector 24, and the network port connector 25 are respectively electrically connected to the processor 23, and the plurality of test port connectors 26 are respectively connected to the communication module 22;

[0040] Among them, the communication module 22 is equipped with multiple RS422 chips 221 and multiple CAN chips 222 in parallel. The multiple RS422 chips 221 and multiple CAN chips 222 are divided into communication groups with the same number as the test port connectors 26, and the multiple communication groups are respectively connected to the multiple test port connectors 26.

[0041] Further, see Figure 1 The box body 1 includes a bottom plate 11, a cover plate 12, a front side plate 13 and a rear side plate 14. The left and right sides of the bottom plate 11 each extend upward with a first bent portion 111, and the left and right sides of the cover plate 12 each extend downward with a second bent portion 121. The first bent portion 111 and the second bent portion 121 on the same side in the left and right directions abut against each other, so that the bottom plate 11 and the cover plate 12 are combined to form a U-shaped structure. The main control board assembly 2 and the indicator light module 3 are respectively installed on the bottom plate 11 and the cover plate 12 and are located in the U-shaped structure. The front side plate 13 and the rear side plate 14 are respectively installed on the front and rear sides of the U-shaped structure.

[0042] Further, see Figure 2 and Figure 3 The bottom plate 11 includes a bottom plate body 112, the first bending portion 111 is vertically upward and symmetrically connected to the left and right sides of the bottom plate body 112, the cover plate 12 includes a cover plate body 122, the cover plate body 122 has the same outer dimensions as the bottom plate body 112, the second bending portion 121 is vertically downward and symmetrically connected to the left and right sides of the cover plate body 122, the main control board assembly 2 and the indicator light module 3 are respectively installed on the bottom plate body 112 and the cover plate body 122.

[0043] Further, see Figure 4 and Figure 5The front side panel 13 includes a front side panel body 131 and a third bent portion 132, and the rear side panel 14 includes a rear side panel body 141 and a fourth bent portion 142. The front side panel body 131 and the rear side panel body 141 have the same outer dimensions. The third bent portion 132 is vertically backward and symmetrically arranged on the left and right sides of the front side panel body 131. The fourth bent portion 142 is vertically forward and symmetrically arranged on the left and right sides of the rear side panel body 141. The front side panel 13 and the rear side panel 14 are connected to the front and rear sides of the bottom plate 11 and the cover plate 12 respectively through the third bent portion 132 and the fourth bent portion 142.

[0044] For ease of processing, the bottom plate body 112 and the first bending portion 111, the cover plate body 122 and the second bending portion 121, the front side plate body 131 and the third bending portion 132, and the rear side plate body 141 and the fourth bending portion 142 can be integrally formed.

[0045] Furthermore, first mounting holes H1 are defined on the front and rear sides of the first and second bent portions 111, 121. Second mounting holes H2 corresponding to the first mounting holes H1 are defined on the upper and lower sides of the third and fourth bent portions 132, 142. The base plate 11, cover plate 12, front side plate 13, and rear side plate 14 are detachably connected via the first and second mounting holes H1, H2. This design facilitates processing, assembly, and repair.

[0046] Further, see Figure 4 The front side panel body 131 is provided with positioning holes that match the sizes of the power connector 24, the network port connector 25 and the multiple test port connectors 26, including a power connector positioning hole 133, a network port connector positioning hole 134 and test port connector positioning holes 135 that are the same in number as the multiple test port connectors 26. A support column 113 is provided on the base plate body 112, and a fixing hole corresponding to the support column 113 is provided on the main control circuit board 21. The main control board assembly 2 can be fixedly installed on the base plate body 112 through the support column 113 and the fixing hole corresponding to the support column 113. At this time, the power connector 24 extends from the power connector positioning hole 133, the network port connector 25 extends from the network port connector positioning hole 134, and the multiple test port connectors 26 extend from their respective corresponding test port connector positioning holes 135 to facilitate connection with external communication.

[0047] Among them, the power connector 24 is used to connect an external DC power supply, and the network port connector 25 is used to connect to the test system. It can transmit signal data to the test system and receive instructions from the test system. The communication module 22 is provided with multiple RS422 chips 221 and multiple CAN chips 222 in parallel. Multiple RS422 chips 221 are connected to the serial port interface, and multiple CAN chips 222 are connected to the CAN interface. The serial port interface and the CAN interface are both test port connectors 26, but they are distinguished according to the different chips connected. Multiple RS422 chips 221 and multiple CAN chips 222 are divided into communication groups with the same number as the test port connectors 26. The serial port interface and the CAN interface are respectively used to connect the flywheel to be tested with communication adaptation.

[0048] The support column 113 can specifically be a copper column with an internal thread, which can be riveted or welded to the base plate body 112. In addition, considering the safety gap of the assembly and the height of the bottom device of the main control board assembly 2 to be installed, the height of the support column 113 is controlled at 5-8mm.

[0049] Furthermore, the indicator light module 3 includes an indicator light circuit board 31 and a plurality of input indicator lights 32 and a plurality of output indicator lights 33 installed on the indicator light circuit board 31. The input indicator lights 32 and the output indicator lights 33 are arranged in pairs. The cover body 122 is provided with a mounting hole 123 and a light-transmitting hole 124. The indicator light module 3 is fixedly mounted on the cover body 122 through the mounting hole 123. Multiple pairs of input indicator lights 32 and output indicator lights 33 extend into the corresponding light-transmitting holes 124 respectively.

[0050] Specifically, the indicator light module 3 can be a whole, or it can be Figure 7 As shown, it is divided into two parts. When the indicator light module 3 is a whole, the two indicator light circuit boards 31 can be designed as a whole. At this time, multiple pairs of indicator lights are divided into two areas and welded at corresponding positions on the circuit board. In this embodiment, in order to facilitate distinction and subsequent maintenance and replacement, the indicator light module 3 is divided into two parts, including an input indicator light module and an output indicator light module that are exactly the same in design. The input indicator light module and the output indicator light module can be electrically connected to the main control board assembly 2 through a flexible cable.

[0051] Through holes are set on the four corners of the indicator circuit board 31 of the indicator light module 3, and corresponding mounting holes 123 are provided on the cover body 122. The number of light-transmitting holes 124 on the cover body 122 is the same as the number of indicator lights on the indicator light module 3 and the positions correspond. When the indicator light module 3 is fixedly installed on the cover body 122 through the mounting holes 123, the input indicator lights 32 and the output indicator lights 33 arranged in pairs extend into the corresponding light-transmitting holes 124 respectively and do not exceed the upper surface of the cover body 122.

[0052] In addition, the indicator light module 3 can also be directly installed on the main control board assembly 2. Figure 7 As shown, a through hole is set at the corresponding position of the main control circuit board 21, and the indicator light module 3 is installed on the main control circuit board 21 through a copper column and screws. The height of the copper column should allow the paired input indicator light 32 and output indicator light 33 to extend into the corresponding light-transmitting hole 124 respectively, and not exceed the upper surface of the cover body 122.

[0053] In this embodiment, the CAN interface is connected to 8 CAN chips 222, which can connect 32 flywheels to be tested that communicate with CAN. The serial port interface is connected to 32 RS422 chips 221, which can connect 32 flywheels to be tested that communicate with RS422. At this time, the total number of input indicator lights 32 and output indicator lights 33 is 32*2+8*2=80. The processor 23 is a Z7 chip, which can meet the needs of simultaneous testing of 32 flywheels.

[0054] Further, see Figure 6 , L-shaped steps are provided on the end faces of the first bend portion 111 and the second bend portion 121, and the first bend portion 111 and the second bend portion 121 are abutted by the L-shaped steps. With the design of the L-shaped steps, the base plate 11 and the cover plate 12 can limit each other during installation to prevent movement during assembly. It can be understood that the structure at the end faces of the first bend portion 111 and the second bend portion 121 can also be a structure in which a groove and a boss cooperate, as long as it can facilitate the positioning of the base plate 11 and the cover plate 12 during installation. In order to facilitate the alignment of the holes during installation, the second mounting hole H2 can be designed as a waist-shaped hole. In this way, when the front side plate 13 and the rear side plate 14 are installed on the U-shaped structure formed by the base plate 11 and the cover plate 12, the second mounting hole H2 on the front side plate 13 and the rear side plate 14 can be better aligned with the first mounting hole H1 on the base plate 11 and the cover plate 12, thereby improving assembly efficiency.

[0055] Furthermore, the box body 1 of the multi-port test communication device also includes an indicator light film, which is affixed to the top of the cover body 122 and corresponds to the light-transmitting hole 124. It is used to identify the function of each indicator light to facilitate viewing of the test status. It is understandable that the position corresponding to the light-transmitting hole 124 on the indicator light film can be a perforated design, or it can be a non-perforated but light-transmitting (for example, transparent) design: designing the indicator light film 5 as a perforated form can better dissipate heat; designing the indicator light film 5 as a non-perforated form but making the area corresponding to the indicator light transparent can play a role in sealing and dustproofing while being light-transmitting. The specific selection can be flexibly made according to the actual working environment of the device.

[0056] Furthermore, the front and rear sides of the bottom plate body 112 further extend outwardly with fixing portions 114, which are used to install and fix the multi-port test communication device. Figure 1 and Figure 2 The fixing portion 114 can be a strip-shaped structure with fixing holes. The strip-shaped fixing portion 114 extends horizontally along the front and rear edges of the base body 112. The multi-port communication box is installed and fixed through the fixing holes on the strip-shaped fixing portion 114. It is understandable that the fixing portion 114 can also be a component in other forms, such as a reinforcing rib provided on the side of the device with fixing holes provided on the reinforcing rib, and the specific position of the fixing portion 114 can be flexibly set as needed. When the fixing portion 114 is designed to extend horizontally along the front and rear edges of the base body 112, in order to facilitate processing, the base body 112, the first bent portion 111 and the fixing portion 114 can be integrally formed.

[0057] The multi-port test communication device with the above design is fully functional and highly integrated. It can not only meet the testing needs of most flywheel models on the market, but also perform batch testing on multiple flywheels at the same time, with high testing efficiency and utilization.

[0058] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the scope of protection of the present invention. In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A multi-port test communication device, characterized in that: The invention comprises a box body (1) which is generally in the shape of a rectangular cavity, a main control board assembly (2) and an indicator light module (3) which are installed in the box body (1) and are electrically connected, wherein the main control board assembly (2) is used to connect the flywheel to be tested with the test system and transmit signal data between the flywheel to be tested and the test system, and the indicator light module (3) is used to display the signal status input from the flywheel to be tested and the signal status output from the test system to the flywheel to be tested, and the main control board assembly (2) comprises a main control circuit board (21) and a communication module (22), a processor (23), a power connector (24), a network port connector (25) and a plurality of test port connectors (26) installed on the main control circuit board (21), the communication module (22), the power connector (24) and the network port connector (25) are respectively electrically connected to the processor (23), and the plurality of test port connectors (26) are respectively connected to the communication module (22); The communication module (22) is provided with a plurality of RS422 chips (221) and a plurality of CAN chips (222) in parallel. The plurality of RS422 chips (221) and the plurality of CAN chips (222) are matched and divided into communication groups having the same number as the test port connectors (26). The plurality of communication groups are respectively connected to the plurality of test port connectors (26).

2. The multi-port test communication device according to claim 1, wherein: The box body (1) comprises a bottom plate (11), a cover plate (12), a front side plate (13) and a rear side plate (14); first bent portions (111) are extended upward on both left and right sides of the bottom plate (11); second bent portions (121) are extended downward on both left and right sides of the cover plate (12); the first bent portion (111) and the second bent portion (121) on the same side in the left and right directions are abutted so that the bottom plate (11) and the cover plate (12) are enclosed to form a U-shaped structure; the main control board assembly (2) and the indicator light module (3) are respectively mounted on the bottom plate (11) and the cover plate (12) and are located in the U-shaped structure; the front side plate (13) and the rear side plate (14) are respectively mounted on the front and rear sides of the U-shaped structure.

3. The multi-port test communication device according to claim 2, wherein: The base plate (11) includes a base plate body (112), a first bent portion (111) vertically upward and symmetrically connected to the left and right sides of the base plate body (112), the cover plate (12) includes a cover plate body (122), the cover plate body (122) has the same outer dimensions as the base plate body (112), the second bent portion (121) vertically downward and symmetrically connected to the left and right sides of the cover plate body (122), and the main control board assembly (2) and the indicator light module (3) are respectively mounted on the base plate body (112) and the cover plate body (122).

4. The multi-port test communication device according to claim 3, characterized in that: The front side panel (13) includes a front side panel body (131) and a third bent portion (132), and the rear side panel (14) includes a rear side panel body (141) and a fourth bent portion (142). The front side panel body (131) and the rear side panel body (141) have the same outer dimensions. The third bent portion (132) is vertically backward and symmetrically arranged on the left and right sides of the front side panel body (131). The fourth bent portion (142) is vertically forward and symmetrically arranged on the left and right sides of the rear side panel body (141). The front side panel (13) and the rear side panel (14) are connected to the front and rear sides of the bottom panel (11) and the cover panel (12) respectively through the third bent portion (132) and the fourth bent portion (142).

5. The multi-port test communication device according to claim 4, characterized in that: The first bending portion (111) and the second bending portion (121) are both provided with first mounting holes H1 on their front and rear sides, and the third bending portion (132) and the fourth bending portion (142) are both provided with second mounting holes H2 corresponding to the first mounting holes H1 on their upper and lower sides. The bottom plate (11), the cover plate (12), the front side plate (13) and the rear side plate (14) are detachably connected via the first mounting holes H1 and the second mounting holes H2.

6. The multi-port test communication device according to any one of claims 4 or 5, characterized in that: The front side panel body (131) is provided with positioning holes that match the sizes of the power connector (24), the network port connector (25) and the multiple test port connectors (26); a support column (113) is provided on the bottom panel body (112); the main control panel assembly (2) is fixedly mounted on the bottom panel body (112) via the support column (113); the power connector (24), the network port connector (25) and the multiple test port connectors (26) respectively extend from the corresponding positioning holes provided on the front side panel body (131).

7. The multi-port test communication device according to any one of claims 4 or 5, characterized in that: The indicator light module (3) comprises an indicator light circuit board (31) and a plurality of pairs of input indicator lights (32) and output indicator lights (33) mounted on the indicator light circuit board (31); a mounting hole (123) and a light-transmitting hole (124) are provided on the cover body (122); the indicator light module (3) is fixedly mounted on the cover body (122) through the mounting hole (123); and the plurality of pairs of input indicator lights (32) and output indicator lights (33) respectively extend into corresponding light-transmitting holes (124).

8. The multi-port test communication device according to any one of claims 4 or 5, characterized in that: The end surfaces of the first bending portion (111) and the second bending portion (121) are both provided with L-shaped steps, and the first bending portion (111) and the second bending portion (121) are abutted via the L-shaped steps.

9. The multi-port test communication device according to any one of claims 4 or 5, characterized in that: The box body (1) further comprises an indicator light film, which is pasted on the top of the cover body (122) and corresponds to the light-transmitting hole (124) and is used to identify the function of the indicator light.

10. The multi-port test communication device according to claim 5, characterized in that: The second mounting hole H2 is a waist-shaped hole.

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