Anti-divulging circuit for internet access lamp of computer

Abstract

The utility model relates to an anti-leakage circuit for an internet access lamp of a computer. The anti-leakage circuit comprises a connection state indicating lamp for displaying a network connection state, a speed indicating lamp for displaying a network connection speed, a first switch, a second switch and a network chip, the connection state indicating lamp is connected with the network chip through the second switch, and the speed indicating lamp, the first switch and the network chip form a series loop. According to the anti-leakage circuit for the internet access lamp of the computer, the first switch and the second switch are arranged, so that a user can turn on / off the speed indicating lamp through connection / disconnection of the first switch, and turn on / off the connection state indicating lamp through connection / disconnection of the second switch. Therefore, whether the internet access lamp is used or not can be actively selected on hardware, and the situation that the internet access lamp is manually used for information transmission in a specific use scene can be avoided, so that secret leakage can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of electronic computer information security, and in particular to a network port light anti-leakage circuit for a computer. Background Technology

[0002] Computers, especially desktop computers, are generally equipped with network port lights to display the network status of the device. By observing the status of the indicator lights, users can quickly obtain information about the device's connection status and network activity.

[0003] A computer's network port lights typically include a connection status indicator (Act) and a speed indicator (Speed). The connection status indicator is usually yellow, green, or orange. A solid connection status indicator means the network cable is correctly connected and the device has recognized the network. A flashing connection status indicator indicates data transmission activity. The speed indicator is usually yellow, green, or orange and is used to display the network connection speed. Figure 1 This diagram illustrates a common network port indicator circuit in the prior art. The circuit includes a network chip RTL811H and network port indicators. The network port indicator includes one ACT light and two speed indicator lights, one for 100Mbps and one for 1000Mbps. Correspondingly, the network chip RTL811H has pins 25, 26, and 27. One end of the ACT light is connected to the network chip RTL811H via pin 27, and the other end is grounded. One end of the 100Mbps indicator light is connected to the network chip RTL811H via pin 26, and the other end is grounded. One end of the 1000Mbps indicator light is connected to the network chip RTL811H via pin 25, and the other end is grounded. When the network is connected, the ACT light illuminates; when the network connection speed reaches 100Mbps, the 100Mbps indicator light illuminates; when the network connection speed reaches 1000Mbps, the 1000Mbps indicator light illuminates.

[0004] Because network port lights indicate different network statuses through color or flashing, it's possible to artificially manipulate the network chip's firmware to make the lights flash regularly for information transmission, even Morse code. In certain use cases, this could lead to data leaks.

[0005] Therefore, in order to avoid the possibility of information leakage caused by transmitting information through the network port light in specific use cases and to protect information security, it is urgent to design a network port light anti-leakage circuit for computers. Summary of the Invention

[0006] The purpose of this invention is to provide a computer network port light anti-leakage circuit that allows for active hardware selection of whether or not to use the network port light, thereby preventing the manual use of the network port light for information transmission in specific usage scenarios and thus preventing leaks.

[0007] To achieve the above objectives, this utility model provides a network port light anti-leakage circuit for a computer, comprising: a connection status indicator light for displaying network connection status, a speed indicator light for displaying network connection speed, a first switch, a second switch, and a network chip; the connection status indicator light is connected to the network chip via the second switch, and the speed indicator light, the first switch, and the network chip form a series circuit. The user can turn the speed indicator light on / off by connecting / disconnecting the first switch, and the connection status indicator light on / off by connecting / disconnecting the second switch.

[0008] The first switch has a first normally open contact, and the speed indicator light is turned on / off by closing / opening the first normally open contact.

[0009] The first switch has a first normally closed contact, and the speed indicator light is turned on / off by closing / opening the first normally closed contact.

[0010] The second switch has a second normally open contact, and the connection status indicator light is turned on / off by closing / opening the second normally open contact.

[0011] The second switch has a second normally closed contact, and the connection status indicator light is turned on / off by closing / opening the second normally closed contact.

[0012] One end of the speed indicator light is connected in series with a first regulating resistor and then connected to the network chip, and the other end is connected in series with a second regulating resistor and then connected to the network chip; one end of the connection status indicator light is connected in series with a third regulating resistor and then grounded, and the other end is connected in series with a fourth regulating resistor and then connected to the network chip; the first regulating resistor is connected in series between the speed indicator light and the first switch or between the first switch and the network chip, and the fourth regulating resistor is connected in series between the connection status indicator light and the second switch or between the second switch and the network chip.

[0013] The first, second, third, and fourth adjusting resistors have the same resistance value.

[0014] Both the connection status indicator and the speed indicator are LED lights.

[0015] The speed indicator includes a first speed indicator and a second speed indicator. The first speed indicator and the second speed indicator form a parallel circuit. One end of the parallel circuit is connected to the network chip through the first switch, and the other end is connected to the network chip.

[0016] The first speed indicator is a 100M indicator; the second speed indicator is a 1000M indicator.

[0017] In summary, the network port light anti-leakage circuit of this invention, through the setting of a first switch and a second switch, allows the user to turn the speed indicator light on / off by connecting / disconnecting the first switch, and to turn the connection status indicator light on / off by connecting / disconnecting the second switch. Therefore, this invention allows for proactive hardware selection of whether to use the network port light, avoiding the deliberate use of the network port light for information transmission in specific usage scenarios, thereby preventing leaks. Attached Figure Description

[0018] The technical solution and other beneficial effects of this utility model will become apparent from the following detailed description of specific embodiments, in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of a computer network port light circuit in the existing technology.

[0020] Figure 2 This is a circuit module diagram of the network port light anti-leakage circuit of the computer according to the present invention.

[0021] Figure 3 This is a circuit module diagram of a preferred embodiment of the network port light anti-leakage circuit of the present invention.

[0022] Figure 4 This is a circuit module diagram of another preferred embodiment of the network port light anti-leakage circuit of the present invention.

[0023] Figure 5 This is a circuit diagram of the connector portion for installing the network port light, which is a preferred embodiment of the network port light anti-leakage circuit of the present invention.

[0024] Figure 6 This is a circuit diagram of the connection between the speed indicator and the first switch in a preferred embodiment of the network port light anti-leakage circuit of the computer according to this utility model.

[0025] Figure 7 This is a circuit diagram of the connection status indicator and the second switch connection part of a preferred embodiment of the network port light anti-leakage circuit of the computer of this utility model. Detailed Implementation

[0026] To further illustrate the technical means and effects of this utility model, the following detailed description is provided in conjunction with the preferred embodiments of this utility model and their accompanying drawings.

[0027] See Figure 2The network port light anti-leakage circuit of this utility model includes a connection status indicator 10 for displaying network connection status, a speed indicator 11 for displaying network connection speed, a first switch PBTSW1 21, a second switch PBTSW2 22, and a network chip 30; the connection status indicator 10 is connected to the network chip 30 through the second switch PBTSW2 22, and the speed indicator 11 forms a series circuit with the first switch PBTSW1 21 and the network chip 30.

[0028] This invention, by setting a first switch and a second switch, allows users to turn the speed indicator light on / off by connecting / disconnecting the first switch, and the connection status indicator light on / off by connecting / disconnecting the second switch. Therefore, this invention allows for proactive hardware selection of whether to use the network port indicator, avoiding the unauthorized use of the indicator light for information transmission in specific usage scenarios, thereby preventing information leakage.

[0029] Optionally, the first switch PBTSW1 21 has a first normally open contact, and the speed indicator light 11 is turned on / off by closing / opening the first normally open contact. When the first switch PBTSW1 21 is pressed, the first normally open contact closes, the circuit is connected, and the speed indicator light 11 is enabled; when the first switch PBTSW1 21 is released, the first normally open contact opens, the circuit is interrupted, and the speed indicator light 11 is turned off.

[0030] Optionally, the first switch PBTSW1 21 has a first normally closed contact, and the speed indicator light 11 is turned on / off by closing / opening the first normally closed contact. When the first switch PBTSW1 21 is pressed out, the first normally closed contact closes, the circuit is connected, and the speed indicator light 11 is enabled; when the first switch PBTSW1 21 is pressed in, the first normally closed contact opens, the circuit is interrupted, and the speed indicator light 11 is turned off.

[0031] Optionally, the second switch PBTSW2 22 has a second normally open contact, and the connection status indicator 10 is turned on / off by closing / opening the second normally open contact. When the second switch PBTSW2 22 is pressed, the second normally open contact closes, the circuit is connected, and the connection status indicator 10 is enabled; when the second switch PBTSW2 22 is released, the second normally open contact opens, the circuit is interrupted, and the connection status indicator 10 is turned off.

[0032] Optionally, the second switch PBTSW2 22 has a second normally closed contact, and the connection status indicator LED0 10 is turned on / off by closing / opening the second normally closed contact. When the second switch PBTSW2 22 is pressed out, the second normally closed contact closes, the circuit is connected, and the connection status indicator LED0 10 is enabled; when the second switch PBTSW2 22 is pressed in, the second normally closed contact opens, the circuit is interrupted, and the connection status indicator LED0 10 is turned off.

[0033] Preferably, one end of the speed indicator light 11 is connected in series with a first adjusting resistor R176 and then connected to the network chip 30, and the other end is connected in series with a second adjusting resistor R180 and then connected to the network chip 30; one end of the connection status indicator light 10 is connected in series with a third adjusting resistor R175 and then grounded, and the other end is connected in series with a fourth adjusting resistor R179 and then connected to the network chip 30; the first adjusting resistor R176 is connected in series between the speed indicator light 11 and the first switch PBTSW1 21 or between the first switch PBTSW1 21 and the network chip 30, and the fourth adjusting resistor R179 is connected in series between the connection status indicator light 10 and the second switch PBTSW2 22 or between the second switch PBTSW2 22 and the network chip 30. Figure 3 In a preferred embodiment of the present invention shown, one end of the speed indicator light 11 is connected in series with a first adjusting resistor R176 and then connected to a first switch PBTSW1 21, and the other end is connected in series with a second adjusting resistor R180 and then connected to the network chip 30; one end of the connection status indicator light 10 is connected in series with a third adjusting resistor R175 and then grounded, and the other end is connected in series with a fourth adjusting resistor R179 and then connected to a second switch PBTSW2 22. Further, the resistance values ​​of the first adjusting resistor R176, the second adjusting resistor R180, the third adjusting resistor R175, and the fourth adjusting resistor R179 are the same.

[0034] Preferably, the connection status indicator 10 and the speed indicator 11 are both LED lights.

[0035] Preferably, such as Figure 4 In a preferred embodiment of the present invention shown, the speed indicator 11 includes a first speed indicator 111 and a second speed indicator 112, which form a parallel circuit. One end of the parallel circuit is connected to the network chip 30 through the first switch PBTSW1 21, and the other end is also connected to the network chip 30.

[0036] Furthermore, the first speed indicator 111 is a 100M indicator; the second speed indicator 112 is a 1000M indicator.

[0037] Specifically, Figure 5The circuit diagram shown is of the connector portion for mounting the network port light in a preferred embodiment of the network port light anti-leakage circuit of this utility model. Figure 6 The circuit diagram showing the connection between the speed indicator and the first switch in this embodiment is illustrated. Figure 7 A circuit diagram showing the connection status indicator light and the connection portion of the second switch in this embodiment is provided. (See attached diagram.) Figure 5-7 The network port indicator in this embodiment includes a connection status indicator LED0, a first speed indicator LED1, and a second speed indicator LED2 mounted on the connector WLRJ-008F; the network chip portion of this embodiment (not shown) can be found in the following reference. Figure 1 The network chip section includes pins LAN LED0, LAN LED1, and LAN LED2. The upper part of the connector WLRJ-008F reflects the circuit diagram of the connector section for the network port light anti-leakage circuit of the computer in this embodiment. Specifically: the first speed indicator LED1 and the second speed indicator LED2 are installed on the left side of the connector WLRJ-008F. The first speed indicator LED1 and the second speed indicator LED2 are connected to form a parallel circuit. One end of this parallel circuit is connected to the first pin L1, and the other end is connected to the second pin L2. The first pin L1 is used to connect to the first switch PBTSW1, and the second pin L2 is used to connect to the LAN LED2 pin of the network chip. The connection status indicator LED0 is installed on the right side of the connector WLRJ-008F. One end of the connection status indicator LED0 is connected to the third pin L3, and the other end is connected to the fourth pin L4. The third pin L3 is used for grounding, and the fourth pin L4 is used to connect to the second switch PBTSW2. One end of the first switch PBTSW1 is connected to the first pin L1, and the other end is connected to the LAN LED2 pin of the network chip. LED1; one end of the second switch PBTSW2 is connected to the fourth pin L4, and the other end is connected to the LAN pin LED0 of the network chip.

[0038] Specifically, in this preferred embodiment, the first pin L1 is connected to the first switch PBTSW1 after being connected in series with the first regulating resistor R176; the second pin L2 is connected to the LAN LED2 pin of the network chip after being connected in series with the second regulating resistor R180; the third pin L3 is connected to ground after being connected in series with the third regulating resistor R175; and the fourth pin L4 is connected to the second switch PBTSW2 after being connected in series with the fourth regulating resistor R179.

[0039] Specifically, in this preferred embodiment, the resistance values ​​of the first adjusting resistor R176, the second adjusting resistor R180, the third adjusting resistor R175, and the fourth adjusting resistor R179 are all 240 ohms.

[0040] In this preferred embodiment, Figure 5 The WLRJ-008F connector has not only pins L1-L4, but also other functional pins and related functional structures. These parts are not related to the network port lamp anti-leakage circuit of this application, and will not be described in detail here.

[0041] In summary, the computer network port light anti-leakage circuit of this utility model can actively select whether to use the network port light in hardware, which can avoid the manual use of the network port light for information transmission in specific usage scenarios, thereby preventing leakage.

[0042] As described above, those skilled in the art can make various other corresponding changes and modifications based on the technical solution and concept of this utility model, and all such changes and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A network port light anti-compromise circuit of a computer, characterized in that, It comprises a connection state indicator (10) for displaying network connection state, a speed indicator (11) for displaying network connection speed, a first switch (21), a second switch (22) and a network chip (30); the connection state indicator (10) is connected with the network chip (30) through the second switch (22), and the speed indicator (11) forms a series circuit with the first switch (21) and the network chip (30). The first switch (21) has a first normally open contact, and the speed indicator (11) is turned on / off by closing / opening the first normally open contact.

2. The computer's network port light anti-compromise circuit of claim 1, wherein, The first switch (21) has a first normally closed contact, and the speed indicator (11) is turned on / off by closing / opening the first normally closed contact.

3. The computer's network port light anti-compromise circuit of claim 1, wherein, The second switch (22) has a second normally open contact, and the connection state indicator (10) is turned on / off by closing / opening the second normally open contact.

4. The computer's network port light anti-compromise circuit of claim 1, wherein, The second switch (22) has a second normally closed contact, and the connection state indicator (10) is turned on / off by closing / opening the second normally closed contact.

5. The computer's network port light anti-compromise circuit of claim 1, wherein, One end of the speed indicator (11) is connected with the network chip (30) in series with a first adjusting resistor (R176), and the other end is connected with the network chip (30) in series with a second adjusting resistor (R180); one end of the connection state indicator (10) is grounded in series with a third adjusting resistor (R175), and the other end is connected with the network chip (30) in series with a fourth adjusting resistor (R179); the first adjusting resistor (R176) is connected between the speed indicator (11) and the first switch (21) or between the first switch (21) and the network chip (30), and the fourth adjusting resistor (R179) is connected between the connection state indicator (10) and the second switch (22) or between the second switch (22) and the network chip (30).

6. The computer's network port light anti-compromise circuit of claim 1, wherein, The first adjusting resistor (R176), the second adjusting resistor (R180), the third adjusting resistor (R175) and the fourth adjusting resistor (R179) have the same resistance value.

7. The computer's network port light anti-compromise circuit of claim 6, wherein, The connection state indicator (10) and the speed indicator (11) are LED lamps.

8. The computer's network port light anti-compromise circuit of claim 1, wherein, The speed indicator (11) comprises a first speed indicator (111) and a second speed indicator (112), and the first speed indicator (111) and the second speed indicator (112) form a parallel circuit, one end of which is connected with the network chip (30) through the first switch (21), and the other end is connected with the network chip (30).

9. The computer's network port light anti-compromise circuit of claim 1, wherein, The first speed indicator (111) is a 100M indicator, and the second speed indicator (112) is a 1000M indicator.

10. The computer's network port light anti-compromise circuit of claim 9, wherein, ​

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