CN203276261U - Expansion card for testing electronic devices - Google Patents

Abstract

The utility model relates to an expansion card for detect an electronic device, expansion card is including a circuit board, a first display module and a second display module, the circuit board has a first connection interface and a second connection interface of a first side and a second side and different specifications, wherein the expansion card is inserted and is located the electrical slot according to the specification selection corresponding first connection interface or second connection interface electrical property of an electrical slot of electronic device, and a detection signal is listened to electronic device to the conveying, make electronic device carry out a testing procedure and passback a status signal according to the detection signal. The expansion card selectively presents a state signal through the first display module or the second display module according to the connection state of the electrical slot, so that the expansion card can be normally used no matter the expansion card is inserted in the forward direction or the reverse direction.

Description

Expansion card for testing electronic devices

【Technical field】

The utility model relates to an expansion card, in particular to an expansion card which has connection interfaces of different specifications and is used for detecting electronic devices.

【Background technique】

With the rapid development of information technology, all kinds of electronic products are introduced, such as computer devices such as desktop computers and notebook computers, portable electronic devices such as tablet computers and smart phones, or different types of embedded system devices such as smart home appliances. At the same time, the above-mentioned electronic products should have different versions of software and firmware according to different hardware requirements and system platforms. Therefore, manufacturers developing electronic products must consider different hardware and systems when building corresponding software and firmware programs. The platform needs to prepare for porting to different types of electronic products in the future.

For the aforementioned process of porting software and firmware programs to electronic products on different system platforms, if the software and firmware programs conflict with the version of the system platform of the electronic device itself, it may cause the transplanted software and firmware programs to malfunction. Executing or crashing will have severe impacts, among which the failure of the firmware program of the Basic Input/Output System (BIOS) to execute normally has the most serious impact, and may even cause the electronic product to fail to start normally. Therefore, in order to avoid the above-mentioned problems, manufacturers usually test all kinds of software and firmware programs, especially the BIOS firmware programs, before the electronic products leave the factory, so as to ensure that the software and firmware programs transplanted to the above-mentioned electronic products The program can run stably.

Manufacturers of electronic products must test the electronic products through the signal connection ports of the electronic products when performing the detection procedures of the above-mentioned software and firmware programs. However, as mentioned above, there are many types of electronic products, and the corresponding connection ports also have Therefore, how to test software and firmware programs through different connection ports of various electronic products to reduce the cost of testing is a problem that manufacturers want to solve urgently.

In addition, since the BIOS firmware program belongs to the boot program (Loader) for system initialization, when the manufacturer performs testing procedures such as Power-On Self Test (POST) for the BIOS firmware program, the display module of the electronic device may The corresponding driver has not been loaded and cannot operate normally, resulting in the detection results or error messages not being known to the testing personnel, so that the testing personnel cannot effectively grasp the testing progress and results. It is also a difficult problem for manufacturers to grasp the progress and results of the inspection process during operation.

【Content of invention】

In view of the above problems, the utility model is to provide a connection interface with different specifications to support the expansion card of the detection electronic device, so as to solve the problem that the manufacturer cannot use the conventional detection device through different connection ports of various types of electronic devices. problem with detection.

In addition, the utility model also solves the problem that the old detection device does not have a display function, which leads to the problem that the detection result cannot be displayed because the display module of the electronic device is not in normal operation, so that the detection personnel can grasp the detection progress and results in real time.

Therefore, the utility model provides an expansion card for detecting an electronic device, and the electronic device has an electrical slot. The expansion card includes a circuit board, a first display module and a second display module. The circuit board has a first side and a second side and a first connection interface and a second connection interface of different specifications. The first connection interface and the second connection interface are respectively electrically arranged on two sides of the circuit board, the first display module and the second display module are respectively electrically arranged on the first side and the second side of the circuit board, and the first display The module is electrically connected to the first connection interface, and the second display module is electrically connected to the second connection interface, wherein the expansion card is selectively electrically inserted through the first connection interface or the second connection interface according to the specification of the electrical slot. In the electrical slot, and send a detection signal to the electronic device through the first connection interface or the second connection interface, the electronic device executes a detection program according to the detection signal, and returns a status signal correspondingly, the expansion card according to the electrical The connection status of the socket with the first connection interface and the second connection interface is selectively presented as a status signal through the first display module or the second display module.

In a preferred embodiment, the aforementioned expansion card further includes a control unit, electrically disposed on the circuit board, and electrically connected to the first connection interface, the second connection interface, the first display module and the second display module respectively, The control unit sends detection signals to the electronic device and receives and sends status signals.

In a preferred embodiment, the specification of the first connection interface of the aforementioned expansion card is Peripheral Component Interconnect (PCI) communication protocol, and the specification of the second connection interface is Peripheral Component Interconnect Express (Peripheral Component Interconnect Express). , PCI-E) communication protocol.

In a preferred embodiment, the first display module and the second display module of the aforementioned expansion card are seven-segment displays.

In addition, the utility model further provides an expansion card for detecting an electronic device, the electronic device has an electrical slot, the expansion card includes a circuit board and a display module, and the circuit board has a first connection interface of different specifications interface with a second connection. The first connection interface and the second connection interface are respectively electrically disposed on two sides of the circuit board, the display module is electrically disposed on the circuit board, and is respectively electrically connected to the first connection interface and the second connection interface, wherein the expansion card is based on The specifications of the electrical slot are selectively electrically plugged into the electrical slot through the first connection interface or the second connection interface, and a detection signal is sent to the electronic device through the first connection interface or the second connection interface. The electronic device executes a detection program according to the detection signal, and returns a corresponding status signal, and the expansion card presents the status signal through the display module.

In a preferred embodiment, the aforementioned expansion card further includes a control unit, which is electrically disposed on the circuit board, and electrically connected to the first connection interface, the second connection interface and the display module respectively. The control unit sends detection signals, and correspondingly receives and sends status signals to the display module.

In a preferred embodiment, the display module of the aforementioned expansion card has a forward display circuit and a reverse display circuit, the forward display circuit is electrically connected to the first connection interface, and the reverse display circuit is electrically connected to the second The connection interface, the forward display circuit and the reverse display circuit respectively control the display module to present status signals in different text display directions.

In a preferred embodiment, the specification of the first connection interface of the aforementioned expansion card is a standard communication protocol for peripheral interconnection, and the specification of the second connection interface is a standard communication protocol for express peripheral interconnection.

In a preferred embodiment, the display module of the aforementioned expansion card is a seven-segment display.

The effect of the utility model is that, by electrically setting the first connection interface and the second connection interface on the two sides of the circuit board respectively, and different specifications, the inspector can choose the electrical slot according to the electronic device to be inspected. The specification adopts the corresponding connection interface, and transmits the detection signal to the electronic device through this connection interface to perform the detection procedure. At the same time, when the inspector wants to detect other electronic devices with different specifications of electrical slots (or connection ports), It is only necessary to turn the expansion card upside down or turn it around, and then electrically connect the connection port with another connection interface, and then the testing procedure can be performed on other electronic devices. Therefore, the testing personnel can use a single expansion card to test different types of electronic devices, thereby effectively Improve the convenience of detection.

In addition, through the display module electrically arranged on the circuit board, the expansion card of the present invention has a self-display function, so when the inspector uses the expansion card of this creation to detect the BIOS firmware program of the electronic device, even if the electronic device does not have When the display module, or the display module of the electronic device, cannot operate normally due to the fact that the driver has not been loaded, the display module of the expansion card can still present the detection results returned by the electronic device according to the corresponding display, so that the detection personnel can grasp the detection progress and As a result, the efficiency and accuracy of detection are greatly improved.

What's more, in different embodiments of the present invention, the expansion card of the present invention can be arranged on the circuit board in different directions through multiple display modules, or through the forward display circuit or reverse display circuit of a single display module. To the display circuit, according to the insertion direction of the used connection interface on the circuit board, the text display direction of the display module is adjusted correspondingly, so no matter whether the inspector electrically connects the connection port of the electronic device with any connection interface of the expansion card, the expansion card The display modules on the screen will display the test results in the same text display direction as the inspector's visual direction, so as to avoid the trouble caused by the inspector frequently changing the inspection position, and also help to improve the convenience and efficiency of inspection.

【Description of drawings】

Fig. 1 is the front view of the expansion card of the first embodiment of the utility model.

Fig. 2 is a rear view of the expansion card of the first embodiment of the present invention.

FIG. 3 is a perspective view of an implementation of an expansion card according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram of components of an implementation of an expansion card according to the first embodiment of the present invention.

FIG. 5 is a perspective view of another implementation of the expansion card of the first embodiment of the present invention.

FIG. 6 is a schematic diagram of components of another implementation of the expansion card according to the first embodiment of the present invention.

Fig. 7 is a front view of the expansion card of the second embodiment of the present invention.

Fig. 8 is a rear view of the expansion card of the second embodiment of the present invention.

FIG. 9 is a schematic diagram of components of an implementation of the expansion card according to the second embodiment of the present invention.

FIG. 10 is a schematic diagram of components of another implementation of the expansion card according to the second embodiment of the present invention.

Description of main component symbols:

10 expansion card 101 circuit board

102 The first connection interface 103 The second connection interface

104 control unit 105 first display module

1051 Positive display circuit 1052 Reverse display circuit

106 Second display module 20, 30 Electronic device

22, 32 electrical slot S1 first side

S2 second side

【Detailed ways】

Regarding the features, implementation and effects of the present utility model, the preferred embodiments are described in detail below in conjunction with the accompanying drawings. The expansion card provided by the utility model includes two different embodiments, and the creators will describe them respectively below.

In the first embodiment, please refer to FIG. 1 to FIG. 4, the expansion card 10 of the present invention is used to detect an electronic device 20, the electronic device 20 described here includes but not limited to computer devices such as desktop computers and notebook computers , portable electronic devices such as tablet computers and smart phones, or different types of embedded system devices such as smart home appliances, etc., and are not limited thereto. The aforementioned electronic device 20 includes an electrical slot 22, as described herein The electrical slot 22 includes but is not limited to following the peripheral interconnection standard, the fast peripheral interconnection standard, the serial floppy disk/tape peripheral accessory bus (Serial Advanced Technology Attachment, SATA), the universal serial bus (Universal Serial Bus, USB ) and other electrical ports of different bus protocols, but not limited thereto.

In addition, the hardware interface specifications of each bus protocol can also be changed according to the type of the electronic device 20 and the data transmission requirements. The demand for transmission rate corresponds to PCI 2.3, PCI-X 2.0 (DDR), PCI-X 2.0 (QDR), PCI-E 1.0 X1, PCI-E 1.0 X2, PCI-E 1.0 X4, PCI-E 1.0 X8, PCI -E 1.0 X16 and other hardware interfaces of different specifications, and not limited thereto, all communication protocols and hardware specifications that can be applied to the electrical slot 22 under the concept of the present utility model can be selected by those with ordinary knowledge in the art Use, the creator will not repeat it here.

As mentioned above, the expansion card 10 includes a circuit board 101, a control unit 104, a first display module 105 and a second display module 106, the circuit board 101 refers to a printed circuit board (Printed Circuit Board, PCB), the circuit board 101 has a first side S1, a second side S2 and a first connection interface 102 and a second connection interface 103 of different specifications. The first connection interface 102 and the second connection interface 103 are respectively electrically arranged on the circuit board 101 two sides of .

The first connection interface 102 and the second connection interface 103 are golden fingers corresponding to the electrical slot 22 of the aforementioned electronic device 20, so that the expansion card 10 is electrically connected to the electronic device through the first connection interface 102 or the second connection interface 103. 20. Therefore, the communication protocols and hardware specifications followed by the first connection interface 102 and the second connection interface 103 are correspondingly changed corresponding to the commonly used electrical socket 22 of the electronic device 20 to be tested, and in this embodiment, the first connection interface The communication protocol and hardware specification followed by 102 are different from those of the second connection interface 103, so as to facilitate the detection of different types of electronic devices 20 through a single expansion card. For example, as shown in FIG. 1 , in this embodiment, the first connection interface 102 of the expansion card 10 is a gold finger of the PCI bus, and the second connection interface 103 is a gold finger of the PCI-E bus. However, the communication protocols and hardware specifications followed by the first connection interface 102 and the second connection interface 103 can be used by those skilled in the art according to the detection requirements, and are not limited to those provided in this embodiment.

It should be noted that, in this embodiment, the installation positions of the first connection interface 102 and the second connection interface 103 can be electrically arranged on two opposite sides of the circuit board 101 as shown in FIG. 1 , or they can be arranged on the circuit board For the two adjacent sides of 101 , those skilled in the art can adopt different configuration plans according to the hardware design and usage requirements, and it is not limited thereto.

As mentioned above, the control unit 104 of the expansion card 10 can be but not limited to a microcontroller (Micro Control Unit, MCU), and the control unit 104 can be selectively electrically arranged on the first side S1 or the second side of the circuit board 101. The side S2 is electrically connected to the first connection interface 102 , the second connection interface 103 , the first display module 105 and the second display module 106 respectively. The control unit 104 stores a detection program for detecting the software or firmware program stored in the electronic device 20, wherein the control unit 104 is electrically connected to the electrical socket 22 through the first connection interface 102 or the second connection interface 103, for To execute a detection program for the electronic device 20 , the detailed detection program steps will be described later.

It is worth noting that the above-mentioned detection program can be directly stored in the control unit 104 as mentioned above, or stored in the storage unit of the expansion card 10, and the control unit 104 can be loaded through the call of the control unit 104 to execute the subsequent detection program. This is not the limit.

In addition, the first display module 105 and the second display module 106 of the expansion card 10 include but are not limited to a seven-segment display, a liquid crystal display, or a group of lights composed of a plurality of lights. 1 and 2, the first display module 105 and the second display module 106 are electrically disposed on the first side S1 and the second side S2 of the circuit board 101 respectively, and the first display module 105 is electrically connected to the second side S2. A connection interface 102 , the second display module 106 is electrically connected to the second connection interface 103 , so as to display the detection stages and results of the electronic device 20 correspondingly.

As mentioned above, therefore, as shown in Figure 1, viewed from the first side S1 of the expansion card 10, the first connection interface 102 of the expansion card 10 is located on one side of the circuit board 101, and the second connection of the expansion card 10 The interface 103 is located on the other side of the circuit board 101, and the control unit 104 and the first display module 105 are disposed on the first side S1. Relatively, as shown in FIG. 2, viewed from the second side S2 of the expansion card 10, the first connection interface 102 and the second connection interface 103 of the expansion card 10 are located at the opposite position to the first side S1, and only the The second display module 106 is disposed on the second side S2.

It is worth noting that the text display directions of the first display module 105 and the second display module 106 are respectively matched with the insertion directions of the first connection interface 102 and the second connection interface 103, that is, regardless of whether the inspector uses the first connection interface 102 or the second connection interface 103 is electrically inserted into the electrical slot 22, and the text direction of the first display module 105 or the second display module 106 is displayed positively in accordance with the visual direction of the inspector, so that the inspector can easily and Intuitively know the detection results without changing the observation position frequently.

As before, please refer to FIGS. 3 to 6 . When inspectors use the expansion card 10 of this embodiment to inspect the electronic device 20 , there are two implementation modes. Please refer to FIG. 3 and FIG. 4. In the first implementation mode, the inspector first selects the first connection interface 102 or the second connection interface 103 according to the specifications of the electrical socket 22 and electrically plugs them into the electrical socket. Slot 22, for example, if the electrical slot 22 of the electronic device 20 is a PCI bus, and the first connection interface 102 is a golden finger of the PCI bus, then the inspector will electrically insert the first connection interface 102 of the expansion card 10 In the electrical slot 22 of the electronic device 20, after the expansion card 10 is inserted into the electronic device 20, the control unit 104 executes a detection program to send a detection signal to the electronic device 20 through the first connection interface 103, and the electronic device 20 Execute a detection program according to the detection signal, and correspondingly return a status signal.

For example, the control unit 104 sends a detection signal to the BIOS of the electronic device 20 to execute a detection program including Power-On Self Test (POST), and the electronic device 20 returns a status signal according to the detection result . In this embodiment, since the expansion card 10 is electrically inserted into the electrical slot 22 through the first connection interface 102, when the expansion card 10 receives a status signal, it selectively presents the status through the first display module 105 signal, so inspectors can monitor the current inspection procedure and inspection results through the first display module 105, so as to judge whether the electronic device 20 is operating normally, and record the inspection results accordingly.

In contrast, please refer to FIG. 5 and FIG. 6. In the second embodiment, when the inspector wants to inspect another electronic device 30, the inspector first selects the corresponding electrical socket 32 according to the specification of the electrical socket 32. The connection interface is electrically inserted into the electrical slot 32. For example, if the electrical slot 32 of the electronic device 30 is a PCI-E bus, and the second connection interface 103 is a golden finger of the PCI-E bus, then the inspector uses The second connection interface 103 of the expansion card 10 is electrically inserted into the electrical slot 32 of the electronic device 30. After the expansion card 10 is inserted into the electronic device 30, the control unit 104 executes a detection program to pass through the second connection interface 103 The detection signal is sent to the electronic device 30, and the electronic device 30 similarly executes a detection program according to the detection signal, and returns a corresponding status signal.

In this embodiment, since the expansion card 10 is electrically inserted into the electrical slot 32 through the second connection interface 103, when the expansion card 10 receives a status signal, it selectively presents the status through the second display module 106 signal, and because the text display direction of the second display module 106 matches the insertion direction of the second connection interface 103, the inspector can monitor the current inspection procedure and inspection results through the second display module 106, so as to judge the electronic device 20 Whether it is operating normally, and correspondingly record the test results.

It can be seen that, in this embodiment, no matter whether the inspector is electrically connected to the electronic device 20 or 30 through the first connection interface 102 or the second connection interface 103, the inspector can pass through the corresponding first display module in accordance with the visual direction of the inspector. 105 or the second display module 106 correspondingly presents positive text or images, so that inspectors can easily and intuitively know the inspection results without frequently changing observation positions, increasing the convenience of inspection.

Please refer to Fig. 7 to Fig. 10, in the second embodiment provided by the utility model, the expansion card 10 is roughly similar to the first embodiment, however, the difference is that the expansion card 10 of this embodiment only has a single The first display module 105 is electrically connected to the first connection interface 102 , the second connection interface 103 and the control unit 104 respectively, and the first display module 105 is disposed on the first side S1 of the circuit board 101 . Therefore, as shown in FIG. 7, if viewed from the first side S1 of the expansion card 101, the first connection interface 102 of the expansion card 10 is located on one side of the circuit board 101, and the second connection interface 103 is located on the circuit board 101. The other side of the first side, and the control unit 104 and the first display module 105 are respectively disposed on the first side S1. In contrast, as shown in FIG. 8 , if viewed from the second side S2 of the expansion card 10 , the first connection interface 102 and the second connection interface 103 of the expansion card 10 are opposite to the viewing angle of the first side S1 .

In addition, as shown in Figure 9 and Figure 10, the first display module 105 also has a forward display circuit 1051 and a reverse display circuit 1052, the forward display circuit 1051 is electrically connected to the first connection interface 102, and the reverse display The circuit 1052 is electrically connected to the second connection interface 103. The forward display circuit 1051 and the reverse display circuit 1052 respectively control the first display module 105 to display status signals in different text display directions to match the visual direction of the inspector.

Therefore, please refer to FIG. 9 and FIG. 10 , when inspectors use the expansion card 10 of this embodiment to inspect the electronic device 20 , there are also two implementation modes. Please refer to FIG. 9. In the first embodiment, when the inspector selectively electrically inserts the first connection interface 102 into the electrical slot 22 according to the specifications of the electrical slot 22, the control unit 104 passes the first The connection interface 103 transmits the detection signal to the electronic device 20 to execute the detection procedure. The first connection interface 102 is electrically inserted in the electrical slot 22, so when the expansion card 10 receives the status signal, the first connection interface 102 transmits the status signal through the forward display circuit 1051, so the forward display circuit 1051 controls The first display module 105 presents the test results without changing the text display direction, so the test personnel can monitor the current test procedures and test results through the first display module 105, so as to judge whether the electronic device 20 is operating normally, and record the test accordingly. result.

Relatively, referring to FIG. 10 , in the second embodiment, since the expansion card 10 is electrically inserted into the electrical slot 32 through the second connection interface 103, when the expansion card 10 receives the status signal, the second The connection interface 103 transmits the status signal through the reverse display circuit 1052 , so the reverse display circuit 1052 controls the first display module 105 to display the detection results in a text display direction upside down or left and right. In this way, even though the direction of the first display module 105 is different due to the change of the insertion direction of the expansion card 10 in this embodiment, the first display module 105 can still be controlled by the reverse display circuit 1052 to cooperate with the detection The direction of the person's vision corresponds to the positive text or image, so that the tester can easily and intuitively know the test result without changing the observation position frequently, which can also increase the convenience of the test.

The above-mentioned expansion card of the present invention is electrically installed on the two sides of the circuit board through the first connection interface and the second connection interface of different specifications, so that the inspector can choose to use the corresponding connection port according to the connection port of the electronic device to be tested. Connect the interface, and send the detection signal to the electronic device through the connection interface to execute the detection procedure. At the same time, when inspectors want to inspect other electronic devices with different connection ports, they only need to turn the expansion card upside down or turn it around, and connect another connection interface to the connection port, and then the inspection procedure can be executed for other electronic devices. Personnel can use a single expansion card to detect different types of electronic devices, thereby effectively improving the convenience of detection.

In addition, through the display module electrically arranged on the circuit board, the expansion card of the present invention has a self-display function, so when the inspector uses the expansion card of the present invention to detect the BIOS firmware program of the electronic device, even if the electronic device does not When the display module has a display module, or the display module of the electronic device has not loaded the driver and the display function cannot work normally, the display module of the expansion card can still display the detection results returned by the electronic device according to the corresponding display, so that the detection personnel can grasp the detection progress in real time And results, greatly improving the efficiency and accuracy of detection.

What's more, in different embodiments of the present invention, the expansion card can be arranged on the side of the circuit board in different directions through multiple display modules, or through the forward display circuit or reverse display of a single display module. The circuit adjusts the text display direction of the display module correspondingly according to the insertion direction of the adopted connection interface on the circuit board. Therefore, no matter whether the inspector electrically connects any connection interface of the expansion card to the connection port of the electronic device, the display module on the expansion card will present the inspection results in the same direction as the inspector's visual direction, so as to avoid the inspection personnel The trouble caused by frequent switching of detection positions also helps to improve the convenience and efficiency of detection.

It is worth noting that although the expansion card provided by the utility model includes two different connection interfaces, it is not limited thereto. Those skilled in the art can, without departing from the spirit of the utility model, use the hardware design and The use requirements correspond to increasing the number and types of connection interfaces to increase the applicability of the expansion card for detection of different types of electronic devices, which will not be repeated here.

Although the embodiments of the present utility model are provided as described above, they are not intended to limit the present utility model. Any person familiar with the related art may, without departing from the spirit and scope of the present utility model, refer to the shapes described in the patent requirements of the present utility model. , structure, feature and quantity can be slightly changed, so the scope of patent claims of the utility model must be defined in the appended patent claims of this description as the criterion.

Claims (9)

1. expansion board, for detection of an electronic installation, described electronic installation has an electrical slot, it is characterized in that, and described expansion board includes:

One circuit board has one first connecting interface and one second connecting interface of one first side, one second side and different size, and described the first connecting interface and described the second connecting interface electrically are arranged at respectively the dual side-edge of described circuit board; And

One first display module and one second display module, electrically be arranged at respectively described the first side and described second side of described circuit board, and described the first display module is electrically connected at described the first connecting interface, and described the second display module is electrically connected at described the second connecting interface;

wherein said expansion board optionally electrically is inserted in described electrical slot with described the first connecting interface or described the second connecting interface according to the specification of described electrical slot, and transmit a detection signal to described electronic installation by described the first connecting interface or described the second connecting interface, described electronic installation is carried out a trace routine according to described detection signal, and corresponding passback one state signal, described expansion board is according to the connection status of described electrical slot and described the first connecting interface and described the second connecting interface, optionally present described state signal by described the first display module or described the second display module.

2. expansion board as claimed in claim 1, it is characterized in that, described expansion board also includes a control module, electrically be arranged at described circuit board, and be electrically connected at respectively described the first connecting interface, described the second connecting interface, described the first display module and described the second display module, described control module transmits described detection signal to described electronic installation and reception and transmits described state signal.

3. expansion board as claimed in claim 1, is characterized in that, the specification of wherein said the first connecting interface is peripheral hardware interconnect standard communications protocol, and the specification of described the second connecting interface is quick peripheral hardware interconnect standard communications protocol.

4. expansion board as claimed in claim 1, is characterized in that, wherein said the first display module and described the second display module are seven-segment display.

5. expansion board, for detection of an electronic installation, described electronic installation has an electrical slot, it is characterized in that, and described expansion board includes:

One circuit board has one first connecting interface and one second connecting interface of different size, and described the first connecting interface and described the second connecting interface electrically are arranged at respectively the dual side-edge of described circuit board; And

one display module, electrically be arranged at described circuit board, and be electrically connected at respectively described the first connecting interface and described the second connecting interface, wherein said expansion board optionally electrically is inserted in described electrical slot with described the first connecting interface or described the second connecting interface according to the specification of described electrical slot, and transmit a detection signal to described electronic installation by described the first connecting interface or described the second connecting interface, described electronic installation is carried out a trace routine according to described detection signal, and corresponding passback one state signal, described expansion board presents described state signal by described display module.

6. expansion board as claimed in claim 5, it is characterized in that, described expansion board also includes a control module, electrically be arranged at described circuit board, and be electrically connected at respectively described the first connecting interface, described the second connecting interface and described display module, described control module transmits described detection signal, and correspondence receives and transmit described state signal to described display module.

7. expansion board as claimed in claim 5, it is characterized in that, wherein said display module has a forward display circuit and a reverse display circuit, described forward display circuit is electrically connected at described the first connecting interface, described reverse display circuit is electrically connected at described the second connecting interface, and described forward display circuit and described reverse display circuit are controlled respectively described display module and presented described state signal with different word display directions.

8. expansion board as claimed in claim 5, is characterized in that, the specification of wherein said the first connecting interface is peripheral hardware interconnect standard communications protocol, and the specification of described the second connecting interface is quick peripheral hardware interconnect standard communications protocol.

9. expansion board as claimed in claim 5, is characterized in that, wherein said display module is seven-segment display.

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