A plug-in modular device

Abstract

The present invention discloses a plug-in modular device, including a backplane and at least one plug-in module; the plug-in module includes a controller, a resistor and a module connector, the module connector includes an even number of module presence judgment terminals, and the module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector; the backplane includes a backplane connector matching each plug-in module, and the backplane connector includes a backplane presence judgment terminal matching the module presence judgment terminal in the matching plug-in module; the backplane presence judgment terminal in the backplane is connected to the module presence judgment terminal in the matching plug-in module, forming a series path from the power supply end to the ground end, so that the controller of the matching plug-in module receives a valid presence signal. The technical solution of the embodiment of the present invention solves the problem of misjudgment of the presence signal when the module is not fully inserted into the backplane or is inserted at a certain angle, and improves the reliability of the module presence judgment result.

Description

Technical Field

[0001] The embodiments of the present invention relate to computer hardware technology, and in particular to a plug-in modular device. Background Art

[0002] A plug-in modular device generally includes a backplane and at least one plug-in module. The backplane is used as a carrier for connecting various plug-in modules to each other and is used to plug in various plug-in modules. In order for the plug-in modular device to work properly, it is necessary to ensure that each plug-in module can be accurately plugged into the backplane. Therefore, it is necessary to determine the module position of each plug-in module.

[0003] The traditional module in-place judgment structure is as follows Figure 1 As shown, a CPLD (Complex Programmable Logic Device) 103 is provided on the plug-in module 101. The connector 105 on the plug-in module 101 and the connector 106 on the backplane 102 are a pair of matching connectors. When the plug-in module 101 is inserted into the backplane 102, the signal on the connector 105 is connected to the signal on the backplane 102 through the connector 106. An in-position signal is defined on the plug-in module 101. The in-position signal is on the plug-in module 101, pulled up to 3.3V through the resistor 104 and input to the CPLD 103. The in-position signal is connected to the connector 105, and the connector 106 is pulled down to the ground terminal on the backplane 102. When the in-position signal is at a high level, it indicates that the plug-in module 101 is not in position; when the in-position signal is at a low level, it indicates that the plug-in module 101 is in position.

[0004] In the process of realizing the present invention, the inventors found that the prior art has the following defects: when the plug-in card module is not fully inserted or is inserted into the backplane at a certain angle, the CPLD on the plug-in card module can still obtain a low-level in-place signal, indicating that the plug-in card module is in place, but because the insertion is incomplete, some signals on the module connector and the backplane connector may not be fully contacted, thereby affecting the function of the entire machine. Summary of the invention

[0005] The embodiment of the present invention provides a plug-in card modular device, which ensures that the plug-in card module is fully inserted into the backplane, thereby improving the reliability of the module in-place judgment result.

[0006] An embodiment of the present invention provides a plug-in card modular device, the device comprising: a backplane, and at least one plug-in card module;

[0007] The plug-in module includes a controller, a resistor and a module connector, the module connector includes an even number of module presence judgment terminals, and the module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector;

[0008] Along the arrangement direction of the module connector, a first in-position determination terminal located at one end of the module connector is connected to the controller and is connected to one end of the resistor or the ground end;

[0009] When the first in-position determination terminal is connected to one end of the resistor, the second in-position determination terminal at the other end of the module connector is connected to the ground end; when the first in-position determination terminal is connected to the ground end, the second in-position determination terminal at the other end of the module connector is connected to one end of the resistor;

[0010] The other end of the resistor is connected to the power supply end;

[0011] The backplane includes a backplane connector matched with each of the plug-in modules, and the backplane connector includes a backplane in-place judgment terminal matched with a module in-place judgment terminal in the matched plug-in module;

[0012] After the backplane presence judgment terminal in the backplane is connected to the module presence judgment terminal in the matching plug-in module accordingly, the first presence judgment terminal, the backplane presence judgment terminal and the second presence judgment terminal are connected in sequence to form a series path, so that the controller of the matching plug-in module receives a valid presence signal; the presence signal is the output signal of the first presence judgment terminal.

[0013] The embodiment of the present invention connects the module presence judgment terminal and the backplane presence judgment terminal correspondingly, forming a series path from the power supply terminal to the ground terminal. Only when all module presence judgment terminals and all backplane presence judgment terminals are connected in series, the first presence judgment terminal will output a low-level signal, and one end of the first presence judgment terminal is connected to the controller of the plug-in module. The controller obtains the low-level signal, that is, a valid presence signal, indicating that the module is in place. The embodiment of the present invention solves the problem of misjudgment of the presence signal when the plug-in module is not fully inserted or inserted into the backplane at a certain angle, ensures that the plug-in module is fully inserted into the backplane, and improves the reliability of the module presence judgment result. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a module position judgment structure in the prior art;

[0015] Figure 2a It is a schematic diagram of a plug-in modular device in Embodiment 1 of the present invention;

[0016] Figure 2b It is a schematic diagram of another plug-in card modular device according to an embodiment of the present invention;

[0017] Figure 3It is a schematic diagram of a plug-in modular device in Embodiment 2 of the present invention;

[0018] Figure 4 This is a schematic diagram of a card-type modular device in Embodiment 3 of the present invention;

[0019] Figure 5 It is a schematic diagram of a plug-in modular device in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0021] Embodiment 1

[0022] Figure 2a is a schematic diagram of a card-type modular device in Embodiment 1 of the present invention, Figure 2b FIG. 1 is a schematic diagram of another plug-in modular device in Embodiment 1 of the present invention. Figure 2a as well as Figure 2b As shown, the plug-in card modular device includes a backplane 201 and at least one plug-in card module 202 .

[0023] The plug-in module 202 includes a controller 203, a resistor 204 and a module connector 205. The module connector 205 includes an even number of module presence determination terminals 206. The module presence determination terminals 206 are symmetrically arranged along the arrangement direction of the module connector 205.

[0024] Along the arrangement direction of the module connector 205, the first in-position determination terminal 207 located at one end of the module connector 205 is connected to the controller 203, and is connected to one end of the resistor 204 or the ground end;

[0025] When the first in-position determination terminal 207 is connected to one end of the resistor 204, Figure 2a As shown, the second in-position determination terminal 208 at the other end of the module connector 205 is connected to the ground terminal; when the first in-position determination terminal 207 is connected to the ground terminal, as shown in FIG. Figure 2b The second in-position determination terminal 208 located at the other end of the module connector 205 is connected to one end of the resistor 204;

[0026] The other end of the resistor 204 is connected to the power supply end;

[0027] The backplane 201 includes a backplane connector 209 matched with each of the plug-in modules 202, and the backplane connector 209 includes a backplane in-position determination terminal 210 matched with the module in-position determination terminal 206 in the matched plug-in module 202;

[0028] After the backplane presence judgment terminal 210 in the backplane 201 is connected to the corresponding module presence judgment terminal 206 in the matching plug-in module 202, the first presence judgment terminal 207, the backplane presence judgment terminal 210 and the second presence judgment terminal 208 are connected in sequence to form a series path, so that the controller 203 of the matching plug-in module 202 receives a valid presence signal; the presence signal is the output signal of the first presence judgment terminal 207.

[0029] by Figure 2a For example, when the first presence determination terminal 207 is connected to one end of the resistor 204, the second presence determination terminal 208 located at the other end of the module connector 205 is connected to the ground terminal. At this time, the first presence determination terminal 207, the backplane presence determination terminal 210 and the second presence determination terminal 208 are connected in sequence to form a series path, and the output signal of the first presence determination terminal 207 is a low-level signal, that is, a valid presence signal.

[0030] On the contrary, Figure 2b For example, when the first in-place determination terminal 207 is connected to the ground terminal, the second in-place determination terminal 208 located at the other end of the module connector 205 is connected to one end of the resistor 204. At this time, the output signal of the first in-place determination terminal 207 is a high-level signal, that is, a valid in-place signal.

[0031] In this embodiment, by setting an even number of module presence determination terminals in a plug-in card module, the number of module presence determination terminals can be increased, and at the same time, a series path can be formed by cooperating with the backplane presence determination terminals in the backplane connector in the backplane, so that a valid presence signal can be used to implement the presence determination of the plug-in card module. That is, the presence signal will be generated only after multiple module presence determination terminals are fully inserted, so as to simplify the determination process to the greatest extent while ensuring the accuracy of the presence determination result.

[0032] Among them, Figure 2aFor example, when the first in-place judgment terminal 207 is connected to one end of the resistor 204, the second in-place judgment terminal 208 located at the other end of the module connector 205 is connected to the ground terminal. When the plug-in module 202 is not fully inserted or is inserted into the backplane 201 at a certain angle, multiple module in-place judgment terminals 206 are not fully connected to the backplane in-place judgment terminal 210. At this time, the controller 203 in the plug-in module 202 is connected to the power supply through the resistor 204, and the signal received by the controller 203 is a high-level signal. At this time, it is considered that the first in-place judgment terminal 207 outputs a high-level signal, indicating that the plug-in module 202 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place judgment terminal 207 changes from a high level to a low level, it indicates that the plug-in module 202 is fully inserted into the backplane 201.

[0033] by Figure 2b For example, when the first in-place judgment terminal 207 is connected to the ground terminal, the second in-place judgment terminal 208 located at the other end of the module connector 205 is connected to one end of the resistor 204. When the plug-in module 202 is not fully inserted or is inserted into the backplane 201 at a certain angle, multiple module in-place judgment terminals 206 are not fully connected to the backplane in-place judgment terminal 210. At this time, it is considered that the first in-place judgment terminal 207 outputs a low-level signal, indicating that the plug-in module 202 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place judgment terminal 207 changes from a low level to a high level, it indicates that the plug-in module 202 is fully inserted into the backplane 201.

[0034] Specifically, a connection relationship between at least two of the even number of module presence judgment terminals and / or a connection relationship between at least two of the even number of backplane presence judgment terminals can be established in advance, and then, after each module presence judgment terminal and each backplane presence judgment terminal are correspondingly connected, a series path from the power supply terminal to the ground terminal in the plug-in module is jointly formed to ultimately generate the valid presence signal.

[0035] The module presence judgment terminals 206 are symmetrically arranged along the arrangement direction of the module connector 205, that is, half of the even number of presence judgment terminals 206 are arranged in the upper half of the module connector 205, and the other half of the even number of presence judgment terminals 206 are arranged in the lower half of the module connector 205. The advantage of such an arrangement is that when the plug-in module is inserted into the backplane at a certain angle, due to the symmetry of the setting of the presence judgment terminals 206, the above-mentioned abnormal insertion situation can be effectively monitored to ensure the accuracy of the template presence judgment result.

[0036] Among them, the module presence judgment terminal 206 can be distributed at both ends of the module connector 205 along the arrangement direction of the module connector 205, or distributed at both ends and the middle of the module connector 205. The specific distribution method can be preset according to the specific number of the module presence judgment terminals 206 and the actual situation, and this embodiment does not limit this.

[0037] In this embodiment, the module connector 205 may be a connector in the form of a pin, and correspondingly, the backplane connector 209 matched with the module connector 205 may be a connector in the form of a jack; or, the module connector 205 may be a connector in the form of a jack, and correspondingly, the backplane connector 209 matched with the module connector 205 may be a connector in the form of a pin. Based on the above embodiments, the plug-in modular device may be a plug-in modular switch; correspondingly, the plug-in module includes: a switching module, a main control module and a power module; the controller may be a CPLD, a single-chip microcomputer or other processors with simple data processing functions.

[0038] Embodiment 2

[0039] Figure 3 Schematic diagram of a plug-in modular device in Embodiment 2 of the present invention. This embodiment is based on the above embodiment. Figure 3 As shown, the plug-in modular device includes a backplane 301 and at least one plug-in module 302. The plug-in module 302 includes a controller 303, a resistor 304 and a module connector 305. The module connector 305 of the plug-in module 302 includes four module presence judgment terminals. Along the arrangement direction of the module connector 305, a first module presence judgment terminal 306, a second module presence judgment terminal 307, a third module presence judgment terminal 308 and a fourth module presence judgment terminal 309 are arranged in sequence. The four module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector 305.

[0040] The first module in-place determination terminal 306 is a first in-place determination terminal, and the fourth module in-place determination terminal 309 is a second in-place determination terminal; along the arrangement direction of the module connector 305, the first in-place determination terminal 306 located at one end of the module connector 305 is connected to the controller 303, and is connected to one end of the resistor 304 or the ground end;

[0041] In an optional case, when the first in-position determination terminal 306 is connected to one end of the resistor 304, Figure 3 For example, the second in-position determination terminal 309 located at the other end of the module connector 305 is connected to the ground terminal.

[0042] In another optional case, when the first in-position determination terminal 306 is connected to the ground terminal (not shown in the figure), the second in-position determination terminal 309 located at the other end of the module connector 305 is connected to one end of the resistor 304;

[0043] The other end of the resistor 304 is connected to the power supply end;

[0044] The backplane 301 includes a backplane connector 310 that matches the module connector 305 of each of the plug-in modules 302. The backplane connector 310 includes a first backplane presence judgment terminal 311 corresponding to the first module presence judgment terminal 306, a second backplane presence judgment terminal 312 corresponding to the second module presence judgment terminal 307, a third backplane presence judgment terminal 313 corresponding to the third module presence judgment terminal 308, and a fourth backplane presence judgment terminal 314 corresponding to the fourth module presence judgment terminal 309.

[0045] The plug-in module 302 further includes: an indicator light circuit 315, which is connected to the controller 303 in the plug-in module 302; the indicator light circuit 315 specifically includes: an indicator light 316 and a resistor 317; one end of the indicator light 316 is connected to one end of the resistor 317, and the other end of the indicator light 316 is connected to the ground end; the other end of the resistor 317 is connected to the controller 303 in the plug-in module 302. The controller 303 is used to light up the indicator light 316 in the indicator light circuit 315 according to the receipt of a valid in-position signal, so as to provide an in-position prompt for the plug-in module, and the in-position signal is the output signal of the first in-position judgment terminal 306.

[0046] by Figure 3 For example, when the first in-place determination terminal 306 is connected to one end of the resistor 304, the second in-place determination terminal 309 at the other end of the module connector 305 is connected to the ground terminal. At this time, the first in-place determination terminal 306, the first backplane in-place determination terminal 311, the second backplane in-place determination terminal 312, the second module in-place determination terminal 307, the third module in-place determination terminal 308, the third backplane in-place determination terminal 313, the fourth backplane in-place determination terminal 314 and the second in-place determination terminal 309 are sequentially connected to form a series path, and the output signal of the first in-place determination terminal 306 is a low-level signal, that is, a valid in-place signal. The controller 303 lights up the indicator light 316 in the indicator light circuit 315 according to the received low-level signal to provide a in-place prompt for the plug-in module.

[0047] On the contrary, when the first in-place determination terminal 306 is connected to the ground terminal (not shown in the figure), the second in-place determination terminal 309 located at the other end of the module connector 305 is connected to one end of the resistor 204. At this time, the output signal of the first in-place determination terminal 306 is a high-level signal, that is, a valid in-place signal. The controller 303 lights up the indicator light 316 in the indicator light circuit 315 according to the received high-level signal to provide a presence prompt for the plug-in module.

[0048] In this embodiment, after the backplane in-place judgment terminal in the backplane is connected to the module in-place judgment terminal in the matching plug-in module, the first in-place judgment terminal, the first backplane in-place judgment terminal, the second backplane in-place judgment terminal, the second module in-place judgment terminal, the third module in-place judgment terminal, the third backplane in-place judgment terminal, the fourth backplane in-place judgment terminal and the second in-place judgment terminal are connected in sequence to form a series path, and then a valid in-place signal can be used to realize the in-place judgment of the plug-in module, that is, the in-place signal will be generated only after the four module in-place judgment terminals are fully inserted, so as to simplify the judgment process to the greatest extent while ensuring the accuracy of the in-place judgment result; secondly, when the in-place signal is generated, the indicator light signal defined by the controller lights up the indicator light in the indicator light circuit to provide a in-place prompt for the plug-in module. Through this embodiment, the module in-place status can be simply and intuitively judged without the need to check the command through software for judgment.

[0049] Among them, Figure 3 For example, when the first in-place judgment terminal 306 is connected to one end of the resistor 304, the second in-place judgment terminal 309 located at the other end of the module connector 305 is connected to the ground terminal. When the plug-in module 302 is not fully inserted or is inserted into the backplane 301 at a certain angle, the four groups of module in-place judgment terminals are not completely connected in series with the backplane in-place judgment terminals. At this time, the controller 303 in the plug-in module 302 is connected to the power supply through the resistor 304, and the signal received by the controller 303 is a high-level signal. At this time, it is considered that the first in-place judgment terminal 306 outputs a high-level signal, indicating that the plug-in module 302 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place judgment terminal 306 changes from a high level to a low level, it indicates that the plug-in module 302 is fully inserted into the backplane 301.

[0050] When the first in-place determination terminal 306 is connected to the ground terminal (not shown in the figure), the second in-place determination terminal 309 located at the other end of the module connector 305 is connected to one end of the resistor 304. When the plug-in module 302 is not fully inserted or is inserted into the backplane 301 at a certain angle, the four module in-place determination terminals are not fully connected to the backplane in-place determination terminals. At this time, it is considered that the first in-place determination terminal 306 outputs a low-level signal, indicating that the plug-in module 302 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place determination terminal 306 changes from a low level to a high level, it indicates that the plug-in module 302 is fully inserted into the backplane 301.

[0051] The module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector 305, that is, half of the four module presence judgment terminals are arranged in the upper part of the module connector 305, and the other half of the four presence judgment terminals are arranged in the lower part of the module connector 305. The advantage of such an arrangement is that when the plug-in module is inserted into the backplane at a certain angle, due to the symmetry of the module presence judgment terminals, the above-mentioned abnormal insertion situation can be effectively monitored to ensure the accuracy of the template presence judgment result.

[0052] The four module presence determination terminals may be distributed at both ends of the module connector 305 along the arrangement direction of the module connector 305, or distributed at both ends and the middle of the module connector 305. For example, the first module presence determination terminal 306 is located at the upper end of the module connector 305, the second module presence determination terminal 307 and the third module presence determination terminal 308 are located together in the middle of the module connector 305, and the fourth module presence determination terminal 309 is located at the lower end of the module connector 305; or, the first module presence determination terminal 306 and the second module presence determination terminal 307 are located at the upper end of the module connector 305, and the third module presence determination terminal 308 and the fourth module presence determination terminal 309 are located at the lower end of the module connector 305.

[0053] In this embodiment, the module connector 305 can be a pin-type connector, and correspondingly, the backplane connector 310 matching the module connector 305 can be a jack-type connector; or, the module connector 305 can be a jack-type connector, and correspondingly, the backplane connector 310 matching the module connector 305 can be a pin-type connector.

[0054] Embodiment 3

[0055] Figure 4 Schematic diagram of a plug-in modular device in Embodiment 3 of the present invention. This embodiment is detailed based on Embodiment 1. Figure 4As shown, the plug-in modular device includes a backplane 401 and at least one plug-in module 402. The plug-in module 402 includes a controller 403, a resistor 404 and a module connector 405. Along the arrangement direction of the module connector 405, a first module presence judgment terminal 406 and a second module presence judgment terminal 407 are arranged in sequence. Among them, the first module presence judgment terminal 406 is a first presence judgment terminal, and the second module presence judgment terminal 407 is a second presence judgment terminal; the first module presence judgment terminal 406 and the second module presence judgment terminal 407 are symmetrically arranged along the arrangement direction of the module connector 405;

[0056] Along the arrangement direction of the module connector 405, the first in-position determination terminal 406 located at one end of the module connector 405 is connected to the controller 403, and is connected to one end of the resistor 404 or the ground end;

[0057] When the first in-position determination terminal 406 is connected to one end of the resistor 404, Figure 4 For example, the second in-position determination terminal 407 at the other end of the module connector 405 is connected to the ground end; when the first in-position determination terminal 406 is connected to the ground end (not shown in the figure), the second in-position determination terminal 407 at the other end of the module connector 405 is connected to one end of the resistor 404;

[0058] The other end of the resistor 404 is connected to the power supply end;

[0059] The backplane 401 includes a backplane connector 408 that matches the module connector 405 of each plug-in module 402. The backplane connector 408 includes a first backplane presence judgment terminal 409 corresponding to the first module presence judgment terminal 406, and a second backplane presence judgment terminal 410 corresponding to the second module presence judgment terminal 407.

[0060] The plug-in module 402 further includes: an indicator light circuit 411, which is connected to the controller 403 in the plug-in module 402; the indicator light circuit 411 specifically includes: an indicator light 412 and a resistor 413; one end of the indicator light 412 is connected to one end of the resistor 413, and the other end of the indicator light 412 is connected to the ground end; the other end of the resistor 413 is connected to the controller 403 in the plug-in module 402. The controller 403 is used to light up the indicator light 412 in the indicator light circuit 411 according to receiving a valid in-position signal, so as to provide an in-position prompt for the plug-in module, and the in-position signal is the output signal of the first in-position judgment terminal 406.

[0061] by Figure 4For example, when the first in-place determination terminal 406 is connected to one end of the resistor 404, the second in-place determination terminal 407 located at the other end of the module connector 405 is connected to the ground terminal. At this time, the first in-place determination terminal 406, the first backplane in-place determination terminal 409, the second backplane in-place determination terminal 410 and the second in-place determination terminal 407 are sequentially connected to form a series path, and the output signal of the first in-place determination terminal 406 is a low-level signal, that is, a valid in-place signal. The controller 403 lights up the indicator light 412 in the indicator light circuit 411 according to the received low-level signal to provide an in-place prompt for the plug-in module.

[0062] On the contrary, when the first presence judgment terminal 406 is connected to the ground terminal (not shown in the figure), the second presence judgment terminal 407 located at the other end of the module connector 405 is connected to one end of the resistor 404. At this time, the output signal of the first presence judgment terminal 406 is a high-level signal, that is, a valid presence signal. The controller 403 lights up the indicator light 412 in the indicator light circuit 411 according to the received high-level signal to provide a presence prompt for the plug-in module.

[0063] In this embodiment, after the backplane presence judgment terminal in the backplane is connected to the corresponding module presence judgment terminal in the matching plug-in module, the first presence judgment terminal, the first backplane presence judgment terminal, the second backplane presence judgment terminal and the second presence judgment terminal are connected in sequence to form a series path, and then a valid presence signal can be used to realize the presence judgment of the plug-in module, that is, the presence signal will be generated only after the two module presence judgment terminals are fully inserted, so as to simplify the judgment process to the greatest extent while ensuring the accuracy of the presence judgment result; secondly, when the presence signal is generated, the indicator light signal defined by the controller lights up the indicator light in the indicator light circuit to provide a presence prompt for the plug-in module. Through this embodiment, the module presence status can be simply and intuitively judged without the need to view commands through software for judgment.

[0064] Among them, Figure 4For example, when the first in-place judgment terminal 406 is connected to one end of the resistor 404, the second in-place judgment terminal 407 located at the other end of the module connector 405 is connected to the ground terminal. When the plug-in module 402 is not fully inserted or is inserted into the backplane 401 at a certain angle, the two sets of module in-place judgment terminals are not completely connected in series with the backplane in-place judgment terminals. At this time, the controller 403 in the plug-in module 402 is connected to the power supply through the resistor 404, and the signal received by the controller 403 is a high-level signal. At this time, it is considered that the first in-place judgment terminal 406 outputs a high-level signal, indicating that the plug-in module 402 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place judgment terminal 406 changes from a high level to a low level, it indicates that the plug-in module 402 is fully inserted into the backplane 401.

[0065] When the first in-place determination terminal 406 is connected to the ground terminal (not shown in the figure), the second in-place determination terminal 407 located at the other end of the module connector 405 is connected to one end of the resistor 404. When the plug-in module 402 is not fully inserted or is inserted into the backplane 401 at a certain angle, the two module in-place determination terminals are not fully connected to the backplane in-place determination terminals. At this time, it is considered that the first in-place determination terminal 406 outputs a low-level signal, indicating that the plug-in module 402 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place determination terminal 406 changes from a low level to a high level, it indicates that the plug-in module 402 is fully inserted into the backplane 401.

[0066] The module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector 405, that is, half of the two module presence judgment terminals are arranged in the upper half of the module connector 405, and the other half of the two presence judgment terminals are arranged in the lower half of the module connector 405. The advantage of such an arrangement is that when the plug-in module is inserted into the backplane at a certain angle, due to the symmetry of the module presence judgment terminals, the above-mentioned abnormal insertion situation can be effectively monitored to ensure the accuracy of the template presence judgment result.

[0067] The two module presence determination terminals may be distributed at both ends of the module connector 405 along the arrangement direction of the module connector 405, or distributed in the middle of the module connector 405. For example, the first module presence determination terminal 406 is located at the upper end of the module connector 405, and the second module presence determination terminal 407 is located at the lower end of the module connector 405; or, the first module presence determination terminal 406 and the second module presence determination terminal 407 are located together in the middle of the module connector 405.

[0068] In this embodiment, the module connector 405 can be a pin-type connector, and correspondingly, the backplane connector 408 matching the module connector 405 can be a jack-type connector; or, the module connector 405 can be a jack-type connector, and correspondingly, the backplane connector 408 matching the module connector 405 can be a pin-type connector.

[0069] Embodiment 4

[0070] Figure 5 Schematic diagram of a plug-in modular device in Embodiment 4 of the present invention. This embodiment is detailed based on Embodiment 1. Figure 5 As shown, the plug-in modular device includes a backplane 501 and at least one plug-in module 502. The plug-in module 502 includes a controller 503, a resistor 504 and a module connector 505. The module connector 505 of the plug-in module 502 includes six module presence judgment terminals. Along the arrangement direction of the module connector 505, a first module presence judgment terminal 506, a second module presence judgment terminal 507, a third module presence judgment terminal 508, a fourth module presence judgment terminal 509, a fifth module presence judgment terminal 510 and a sixth module presence judgment terminal 511 are arranged in sequence. The six module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector 505.

[0071] The first module in-place determination terminal 506 is a first in-place determination terminal, and the sixth module in-place determination terminal 511 is a second in-place determination terminal; along the arrangement direction of the module connector 505, the first in-place determination terminal 506 located at one end of the module connector 505 is connected to the controller 503, and is connected to one end of the resistor 504 or the ground end;

[0072] When the first in-position determination terminal 506 is connected to one end of the resistor 504, Figure 5 For example, the second in-position determination terminal 511 at the other end of the module connector 505 is connected to the ground end; when the first in-position determination terminal 506 is connected to the ground end (not shown in the figure), the second in-position determination terminal 511 at the other end of the module connector 505 is connected to one end of the resistor 504;

[0073] The other end of the resistor 504 is connected to the power supply end;

[0074] The backplane 501 includes a backplane connector 512 that matches the module connector 505 of each plug-in module 502. The backplane connector 512 includes a first backplane presence judgment terminal 513 corresponding to the first module presence judgment terminal 506, a second backplane presence judgment terminal 514 corresponding to the second module presence judgment terminal 507, a third backplane presence judgment terminal 515 corresponding to the third module presence judgment terminal 508, a fourth backplane presence judgment terminal 516 corresponding to the fourth module presence judgment terminal 509, a fifth backplane presence judgment terminal 517 corresponding to the fifth module presence judgment terminal 510, and a sixth backplane presence judgment terminal 518 corresponding to the sixth module presence judgment terminal 511.

[0075] The plug-in module 502 further includes: an indicator light circuit 519, which is connected to the controller 503 in the plug-in module 502; the indicator light circuit 519 specifically includes: an indicator light 520 and a resistor 521; one end of the indicator light 520 is connected to one end of the resistor 521, and the other end of the indicator light 520 is connected to the ground end; the other end of the resistor 521 is connected to the controller 503 in the plug-in module 502. The controller 503 is used to light up the indicator light 520 in the indicator light circuit 519 according to the receipt of a valid in-position signal, so as to provide an in-position prompt for the plug-in module, and the in-position signal is the output signal of the first in-position judgment terminal 506.

[0076] by Figure 5 For example, when the first in-place determination terminal 506 is connected to one end of the resistor 504, the second in-place determination terminal 511 located at the other end of the module connector 505 is connected to the ground terminal. At this time, the first in-place determination terminal 506, the first backplane in-place determination terminal 513, the second backplane in-place determination terminal 514, the second module in-place determination terminal 507, the third module in-place determination terminal 508, the third backplane in-place determination terminal 515, the fourth backplane in-place determination terminal 516, the fourth module in-place determination terminal 509, the fifth module in-place determination terminal 510, the fifth backplane in-place determination terminal 517, the sixth backplane in-place determination terminal 518 and the second in-place determination terminal 511 are sequentially connected to form a series path, and the output signal of the first in-place determination terminal 506 is a low-level signal, that is, a valid in-place signal. The controller 503 lights up the indicator light 520 in the indicator light circuit 519 according to the received low-level signal to provide a in-place prompt for the plug-in module.

[0077] On the contrary, when the first presence judgment terminal 506 is connected to the ground terminal (not shown in the figure), the second presence judgment terminal 511 located at the other end of the module connector 505 is connected to one end of the resistor 504. At this time, the output signal of the first presence judgment terminal 506 is a high-level signal, that is, a valid presence signal. The controller 503 lights up the indicator light 520 in the indicator light circuit 519 according to the received high-level signal to provide a presence prompt for the plug-in module.

[0078] In this embodiment, after the backplane in-place judgment terminal in the backplane is connected to the module in-place judgment terminal in the matching plug-in module, the first in-place judgment terminal, the first backplane in-place judgment terminal, the second backplane in-place judgment terminal, the second module in-place judgment terminal, the third module in-place judgment terminal, the third backplane in-place judgment terminal, the fourth backplane in-place judgment terminal, the fourth module in-place judgment terminal, the fifth module in-place judgment terminal, the fifth backplane in-place judgment terminal, the sixth backplane in-place judgment terminal and the second in-place judgment terminal are connected in sequence to form a series path, and then a valid in-place signal can be used to realize the in-place judgment of the plug-in module, that is, the in-place signal will be generated only after all six module in-place judgment terminals are fully inserted, so as to simplify the judgment process to the greatest extent while ensuring the accuracy of the in-place judgment result; secondly, when the in-place signal is generated, the indicator light signal defined by the controller lights up the indicator light in the indicator light circuit to provide the in-place prompt of the plug-in module. Through this embodiment, the module in-place status can be simply and intuitively judged without the need to judge by checking the command through software.

[0079] Among them, Figure 5 For example, when the first in-place judgment terminal 506 is connected to one end of the resistor 504, the second in-place judgment terminal 511 located at the other end of the module connector 505 is connected to the ground terminal. When the plug-in module 502 is not fully inserted or is inserted into the backplane 501 at a certain angle, the six groups of module in-place judgment terminals are not completely connected in series with the backplane in-place judgment terminals. At this time, the controller 503 in the plug-in module 502 is connected to the power supply through the resistor 504, and the signal received by the controller 503 is a high-level signal. At this time, it is considered that the first in-place judgment terminal 506 outputs a high-level signal, indicating that the plug-in module 502 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place judgment terminal 506 changes from a high level to a low level, it indicates that the plug-in module 502 is fully inserted into the backplane 501.

[0080] When the first in-place determination terminal 506 is connected to the ground terminal (not shown in the figure), the second in-place determination terminal 511 located at the other end of the module connector 505 is connected to one end of the resistor 504. When the plug-in module 502 is not fully inserted or is inserted into the backplane 501 at a certain angle, the six module in-place determination terminals are not fully connected to the backplane in-place determination terminals. At this time, it is considered that the first in-place determination terminal 506 outputs a low-level signal, indicating that the plug-in module 502 is not inserted or inserted properly, and this state is normal; when the output signal of the first in-place determination terminal 506 changes from a low level to a high level, it indicates that the plug-in module 502 is fully inserted into the backplane 301.

[0081] The module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector 505, that is, half of the six module presence judgment terminals are arranged in the upper half of the module connector 505, and the other half of the six presence judgment terminals are arranged in the lower half of the module connector 505. The advantage of such an arrangement is that when the plug-in module is inserted into the backplane at a certain angle, due to the symmetry of the module presence judgment terminals, the above-mentioned abnormal insertion situation can be effectively monitored to ensure the accuracy of the template presence judgment result.

[0082] Among them, the six module presence determination terminals can be distributed at both ends of the module connector 505 along the arrangement direction of the module connector 505, or distributed at both ends and the middle of the module connector 505. For example, the first module presence determination terminal 506, the second module presence determination terminal 507 and the third module presence determination terminal 508 are located at the upper end of the module connector 505, and the fourth module presence determination terminal 509, the fifth module presence determination terminal 510 and the sixth module presence determination terminal 511 are located at the lower end of the module connector 505; or, the first module presence determination terminal 506 and the second module presence determination terminal 507 are located at the upper end of the module connector 505, and the third module presence determination terminal 508 and the fourth module presence determination terminal 509 are located at the lower end of the module connector 505; The fifth module presence judgment terminal 510 and the sixth module presence judgment terminal 511 are located together in the middle of the module connector 505, and the module presence judgment terminal 510 and the sixth module presence judgment terminal 511 are located at the lower end of the module connector 505; or, the first module presence judgment terminal 506 is located at the upper end of the module connector 505, the second module presence judgment terminal 507, the third module presence judgment terminal 508, the fourth module presence judgment terminal 509 and the fifth module presence judgment terminal 510 are located together in the middle of the module connector 505, and the sixth module presence judgment terminal 511 is located at the lower end of the module connector 505.

[0083] In this embodiment, the module connector 505 can be a pin-type connector, and correspondingly, the backplane connector 512 matching the module connector 505 can be a jack-type connector; or, the module connector 505 can be a jack-type connector, and correspondingly, the backplane connector 512 matching the module connector 505 can be a pin-type connector.

[0084] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A card-type modular device, characterized in that: include: a backplane, and at least one plug-in module; The plug-in module includes a controller, a resistor and a module connector, the module connector includes an even number of module presence judgment terminals, and the module presence judgment terminals are symmetrically arranged along the arrangement direction of the module connector; Along the arrangement direction of the module connector, a first in-position determination terminal located at one end of the module connector is connected to the controller and is connected to one end of the resistor or the ground end; When the first in-position determination terminal is connected to one end of the resistor, the second in-position determination terminal at the other end of the module connector is connected to the ground end; when the first in-position determination terminal is connected to the ground end, the second in-position determination terminal at the other end of the module connector is connected to one end of the resistor; The other end of the resistor is connected to the power supply end; The backplane includes a backplane connector matched with each of the plug-in modules, and the backplane connector includes a backplane in-place judgment terminal matched with a module in-place judgment terminal in the matched plug-in module; After the backplane in-place determination terminal in the backplane is connected to the module in-place determination terminal in the matching plug-in module, the first in-place determination terminal, the backplane in-place determination terminal and the second in-place determination terminal are connected in sequence to form a series path, so that the controller of the matching plug-in module receives a valid in-place signal; the in-place signal is the output signal of the first in-place determination terminal; Before the backplane in-place determination terminal in the backplane is connected to the module in-place determination terminal in the matching plug-in module, the method includes: A connection relationship between at least two of the even number of module presence determination terminals is pre-established, and / or a connection relationship between at least two of the even number of backplane presence determination terminals is pre-established.

2. The plug-in card type modular device according to claim 1, characterized in that: The plug-in card module further comprises: an indicator light circuit, the indicator light circuit being connected to a controller in the plug-in card module; The controller is used to light up the indicator light in the indicator light circuit according to receiving a valid presence signal, so as to provide a presence prompt for the plug-in module.

3. The card-type modular device according to claim 1, characterized in that: The module connector of the plug-in module includes two module presence determination terminals, and along the arrangement direction of the module connector, a first module presence determination terminal and a second module presence determination terminal are sequentially arranged; Wherein, the first module presence determination terminal is the first presence determination terminal, and the second module presence determination terminal is the second presence determination terminal; In the backplane, a backplane connector matching the module connector of the plug-in module includes a first backplane in-place judgment terminal corresponding to the first module in-place judgment terminal, and a second backplane in-place judgment terminal corresponding to the second module in-place judgment terminal; Among them, after the backplane presence judgment terminal in the backplane is connected to the module presence judgment terminal in the matching plug-in module, the first presence judgment terminal, the first backplane presence judgment terminal, the second backplane presence judgment terminal and the second presence judgment terminal are connected in sequence to form a series path.

4. The card-type modular device according to claim 1, characterized in that: The module connector of the plug-in module includes four module presence judgment terminals, and along the arrangement direction of the module connector, a first module presence judgment terminal, a second module presence judgment terminal, a third module presence judgment terminal and a fourth module presence judgment terminal are arranged in sequence; Wherein, the first module presence determination terminal is the first presence determination terminal, the second module presence determination terminal is connected to the third module presence determination terminal, and the fourth module presence determination terminal is the second presence determination terminal; In the backplane, the backplane connector matching the module connector of the plug-in module includes a first backplane in-place judgment terminal corresponding to the first module in-place judgment terminal, a second backplane in-place judgment terminal corresponding to the second module in-place judgment terminal, a third backplane in-place judgment terminal corresponding to the third module in-place judgment terminal, and a fourth backplane in-place judgment terminal corresponding to the fourth module in-place judgment terminal; Among them, after the backplane presence judgment terminal in the backplane is connected to the corresponding module presence judgment terminal in the matching plug-in module, the first presence judgment terminal, the first backplane presence judgment terminal, the second backplane presence judgment terminal, the second module presence judgment terminal, the third module presence judgment terminal, the third backplane presence judgment terminal, the fourth backplane presence judgment terminal and the second presence judgment terminal are connected in sequence to form a series path.

5. The card-type modular device according to claim 1, characterized in that: The module connector of the plug-in module includes six module presence judgment terminals, and along the arrangement direction of the module connector, a first module presence judgment terminal, a second module presence judgment terminal, a third module presence judgment terminal, a fourth module presence judgment terminal, a fifth module presence judgment terminal and a sixth module presence judgment terminal are arranged in sequence; The first module presence determination terminal is the first presence determination terminal, the second module presence determination terminal is connected to the third module presence determination terminal, the fourth module presence determination terminal is connected to the fifth module presence determination terminal, and the sixth module presence determination terminal is the second presence determination terminal; In the backplane, the backplane connector matching the module connector of the plug-in module includes a first backplane in-place judgment terminal corresponding to the first module in-place judgment terminal, a second backplane in-place judgment terminal corresponding to the second module in-place judgment terminal, a third backplane in-place judgment terminal corresponding to the third module in-place judgment terminal, a fourth backplane in-place judgment terminal corresponding to the fourth module in-place judgment terminal, a fifth backplane in-place judgment terminal corresponding to the fifth module in-place judgment terminal, and a sixth backplane in-place judgment terminal corresponding to the sixth module in-place judgment terminal; Among them, after the backplane presence judgment terminal in the backplane is connected to the corresponding module presence judgment terminal in the matching plug-in module, the first presence judgment terminal, the first backplane presence judgment terminal, the second backplane presence judgment terminal, the second module presence judgment terminal, the third module presence judgment terminal, the third backplane presence judgment terminal, the fourth backplane presence judgment terminal, the fourth module presence judgment terminal, the fifth module presence judgment terminal, the fifth backplane presence judgment terminal, the sixth backplane presence judgment terminal and the second presence judgment terminal are connected in sequence to form a series path.

6. The plug-in card type modular device according to claim 1, characterized in that: In the plug-in card module, the even number of module presence determination terminals are symmetrically arranged at both end regions of the module connector along the arrangement direction of the module connector.

7. The plug-in card type modular device according to claim 1, characterized in that: In the plug-in card module, the even number of module presence determination terminals are symmetrically arranged at both end regions and a middle region of the module connector along the arrangement direction of the module connector.

8. The plug-in card type modular device according to claim 2, characterized in that: The indicator light circuit specifically comprises: an indicator light and a resistor; One end of the indicator light is connected to one end of the resistor, and the other end of the indicator light is connected to the ground end; the other end of the resistor is connected to the controller in the plug-in module.

9. The plug-in card type modular device according to any one of claims 1 to 8, characterized in that: The card-type modular device is a card-type modular switch; The plug-in card module includes: a switching module, a main control module and a power supply module.

10. The plug-in card type modular device according to any one of claims 1 to 8, characterized in that: The controller is a complex programmable logic device.

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