Serial port conversion line capable of displaying connection state

Abstract

The utility model relates to the technical field of server test, and discloses a serial port conversion line capable of displaying a connection state, which is used for communication connection between an RS232 serial port and a test port on a test board, and comprises a transmission line, a plurality of serial ports and a plurality of serial ports, the first connecting seat comprises an RS232 connecting serial port and a first connecting plate, the first connecting plate is electrically connected with the RS232 connecting serial port and further electrically connected with the transmission line, the connecting prompting lamp is installed on the surface of the first connecting seat and electrically connected with the first connecting plate, the second connecting seat comprises a connecting port, and the connecting prompting lamp is installed on the surface of the second connecting seat and electrically connected with the second connecting plate. The connecting port is electrically connected with the transmission line, a movable rod is further arranged in the second connecting base, one end of the movable rod extends out of the second connecting base, and the other end of the movable rod is movably installed in the second connecting base through a spring switch. The spring switch is electrically connected with the transmission line and controls the connection prompting lamp to be turned on and turned off through the transmission line. In this way, the testing stability and the testing efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of server testing technology, and in particular to a serial port conversion cable that can display connection status. Background Technology

[0002] Currently, USB-to-RS-232 serial cables are used in server testing with test boards. However, the RS-232 serial port of this cable cannot be directly plugged into the test board; it requires a DuPont wire connection. The DuPont wire connection is unstable, frequently resulting in test failures due to improper connection, severely impacting the stability and accuracy of server testing. Furthermore, the proper connection of the DuPont wires cannot be visually inspected; it can only be determined after powering on and starting the test. Adjusting the DuPont wires only after starting the test significantly reduces testing efficiency. Therefore, it is necessary to invent a serial connection cable that solves these shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a serial port connection cable to improve testing stability and efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A serial port conversion cable capable of displaying connection status is used for communication connection between an RS232 serial port and a test port on a test board, comprising: a transmission line; a first connector including an RS232 serial port and a first connector board, wherein the RS232 serial port is electrically connected to the transmission line through the first connector board; a connection indicator light, mounted on the surface of the first connector and electrically connected to the first connector board; and a second connector including a connection port electrically connected to the transmission line, wherein the second connector further comprises a movable rod, one end of which extends out of the second connector and the other end is connected to a test port on a test board. A spring switch is movably mounted in the second connector. The spring switch is electrically connected to the transmission line and controls the opening and closing of the connection indicator light through the transmission line. The RS232 serial port includes a first port and a second port. The first port is electrically connected to a first connection line of the transmission line through a first connection plate. The second port is electrically connected to the connection indicator light through the first connection plate and then to a second connection line of the transmission line. The spring switch includes a fixed contact and a movable contact. The fixed contact is electrically connected to the second connection line, and the movable contact is selectively electrically connected to the first connection line.

[0006] Preferably, the RS232 serial port includes a first port and a second port. The first port is electrically connected to a first connection line of the transmission line, and the second port is electrically connected to the connection indicator light and then to a second connection line of the transmission line. The spring switch includes a fixed contact and a movable contact. The fixed contact is electrically connected to the second connection line, and the movable contact is selectively electrically connected to the first connection line.

[0007] Preferably, the selective electrical connection between the movable contact and the first connecting line includes: when the movable rod moves toward the interior of the second connecting seat, the movable contact contacts the first connecting line and is electrically connected to turn on the connection indicator light; when the movable rod moves away from the interior of the second connecting seat, the movable contact moves away from the first connecting line to turn off the connection indicator light.

[0008] Preferably, a limiting plate is provided at the position where the movable rod connects to the spring switch, the limiting plate is located inside the second connecting seat, and the spring switch is provided on the limiting plate.

[0009] Preferably, a resistor is also electrically connected between the second port and the connection indicator light.

[0010] Preferably, the transmission line further includes a signal transmission line and a signal receiving line, wherein the signal transmission line is connected between a first transmission terminal of the RS232 serial port and a second transmission terminal of the connection port, and the signal receiving line is connected between a first receiving terminal of the RS232 serial port and a second receiving terminal of the connection port.

[0011] Compared with the prior art, the beneficial effect of this utility model is that the working status of the connection indicator light can be used to determine whether the USB to RS-232 serial cable has successfully connected the test board and the server, without having to wait for power-on testing, which is conducive to improving testing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the serial port connection cable;

[0013] Figure 2 This is a schematic diagram of the internal structure of the first connecting seat;

[0014] Figure 3 This is a schematic diagram of the internal structure of the second connecting seat;

[0015] Figure 4 This is a schematic diagram of part of the internal structure of the second connecting seat. Detailed Implementation

[0016] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0018] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] See Figures 1-4 This utility model provides a serial port connection cable that connects the RS232 serial port of a USU to RS-232 serial cable to a test port on a test board. The USB end of the USU to RS-232 serial cable is plugged into the USB end of the server, enabling the test board to connect to the server for testing. The serial port connection cable includes a transmission line 100, a first connector 200, a connection indicator light 300, and a second connector 400.

[0021] The first connector 200 includes an RS232 serial port 201 and a first connector board 202. The RS232 serial port 201 is interconnected with the RS232 serial port of a USU-to-RS-232 serial cable via the RS232 serial port 201. The two cables have male and female connectors respectively for communication. The RS232 serial port 201 is electrically connected to the transmission line 100 via the first connector board 202. The transmission line 100 is composed of multi-core wires wrapped with an insulating outer layer, and includes at least a first connecting line 101 and a second connecting line 102. The RS232 serial port 201 includes a first port 203 and a second port 204. The first port 203 is electrically connected to the first connecting line 101 via the first connector board 202. The second port 204 is electrically connected to the second connecting line 102 after being electrically connected to the connection indicator light 300 via the first connector board 202, thus electrically connecting the first connector 200 to the transmission line 100. Specifically, the first port 203 corresponds to pin 4 (PI N) on the RS232 serial port, and the second port 204 corresponds to pin 8 (PI N) on the RS232 serial port.

[0022] The second connector 400 includes a connector port 401, which is connected to a test port on the test board via the connector port 401. The two are male and female connectors, respectively, to achieve communication. The connector port 401 is electrically connected to the transmission line 100. The second connector 400 also has a movable rod 402. One end of the movable rod 402 extends out of the second connector 400, and the other end is movably installed in the second connector 400 via a spring switch 403. The spring switch 403 is electrically connected to the transmission line 100 and controls the opening and closing of the connection indicator light 300 via the transmission line 100. In detail, the spring switch 403 includes a fixed contact 404 and a movable contact 405. The fixed contact 404 is electrically connected to the second connecting line 102 on the transmission line 100, and the movable contact 405 is selectively electrically connected to the first connecting line 101 on the transmission line 100. When the movable rod 402 moves toward the interior of the second connecting seat 400, the movable contact 405 contacts the first connecting line 101 and is electrically connected, so that the connection indicator light 300 is turned on. When the movable rod 402 moves away from the interior of the second connecting seat 400, the movable contact 405 moves away from the first connecting line 101, so that the connection indicator light 300 is turned off. Furthermore, in practical applications, the RS232 serial port 201 on the first connector 200 is connected to the RS232 serial port of the USB to RS-232 serial cable. When the connection port 401 of the second connector 400 is successfully connected after being inserted into the test port on the test board, the movable rod 402 will be pressed into the second connector 400 so that the movable contact 405 on the spring switch 403 will be electrically connected to the first connecting line 101, thereby turning on the connection indicator light 300. At this time, a circuit loop is formed consisting of the first port 203, the second port 204, the first connecting line 101, the second connecting line 102, and the spring switch 403, thereby turning on the connection indicator light 300. When the connection indicator light 300 lights up, it indicates that the USB to RS-232 serial cable has successfully connected the test board and the server. Of course, to prevent the connection indicator light 300 from being damaged by overcurrent, a resistor 205 is electrically connected between the second port 204 and the connection indicator light 300 to limit the current in the circuit and protect the connection indicator light 300. Furthermore, when the connection port 401 is unplugged from the test port, the movable rod 402 extends out of the second connector 400 under the action of the spring switch 403, the above circuit will be broken, the connection indicator light 300 will turn off, and the connection between the test board and the server will be disconnected.Additionally, if the USB port on the server malfunctions, the USB-to-RS-232 serial cable malfunctions, or other faults cause a disconnect between the server and the test board, the connection indicator light 300 will also turn off due to the lack of continuity in the aforementioned circuit. In other words, the working status of the connection indicator light 300 can be used to determine whether the USB-to-RS-232 serial cable has successfully connected the test board and the server, without having to wait for power-on testing, which improves testing efficiency. Furthermore, the working status of the connection indicator light 300 can be used to determine whether the connection between the test board and the server is stable. For example, if the light on the connection indicator light 300 is unstable, or flickers, it indicates that the current connection is unstable and the connection needs to be readjusted to improve the stability of the test.

[0023] In a preferred embodiment, pin 5 on the RS232 serial port is the ground pin; and pin 9 on the connection port 401 is also the ground pin. The two pins are electrically connected through the third connection line in the transmission line 100 to complete the connection between the ground pins.

[0024] In another preferred embodiment, a limiting plate 406 is provided at the connection position between the movable rod 402 and the spring switch 403. The limiting plate 406 is located within the second connecting seat 400, and the spring switch 403 is mounted on the limiting plate 406. Specifically, the movable rod 402 is linked to the spring switch 403 through the limiting plate 406. A gap (0.5-1mm) is reserved between the edge of the limiting plate 406 and the inner wall of the second connecting seat 400, so that when the movable rod 402 reciprocates, the limiting plate 406 is restricted within the second connecting seat 400, thereby preventing the movable rod 402 from disengaging from the second connecting seat 400 due to excessive displacement. This design improves the axial movement stability of the movable rod 402 through mechanical constraint, thereby ensuring reliable contact of the contacts of the spring switch 403 during pressing or releasing, and avoiding signal interruption due to vibration or misoperation.

[0025] In another preferred embodiment, the transmission line 100 further includes a signal transmission line 103 and a signal receiving line 104. The signal transmission line 103 is connected between a first transmission terminal 206 of the RS232 serial port 201 and a second transmission terminal 407 of the connection port 401. The signal receiving line 104 is connected between a first receiving terminal 207 of the RS232 serial port 201 and a second receiving terminal 408 of the connection port 401. Specifically, one end of the signal transmission line 103 is soldered to the first transmission terminal 206 of the RS232 serial port 201, and the other end is connected to the second transmission terminal 407 of the second connector 400, for transmitting the transmit signal from the RS232 serial port to the test port. One end of the signal receiving line 104 is soldered to the first receiving terminal 207 of the RS232 serial port 201, and the other end is connected to the second receiving terminal 408 of the second connector 400, for receiving feedback signals from the test port. The shielding layers of both the signal transmission line 103 and the signal receiving line 104 are fixed to the grounding terminal of the first connecting plate 202 with conductive adhesive to suppress high-frequency interference and ensure the integrity of signal transmission. Specifically, the first transmission terminal 206 corresponds to pin 2 on the RS232 serial port, and the second transmission terminal 407 corresponds to pin 3 on the connection port 401; the first receiving terminal 207 corresponds to pin 3 on the RS232 serial port, and the second receiving terminal 408 corresponds to pin 5 on the connection port 401.

[0026] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A serial port conversion cable capable of displaying connection status, used for communication connection between an RS232 serial port and a test port on a test board, characterized in that, include: One transmission line (100); A first connector (200) includes an RS232 serial port (201) and a first connector board (202), wherein the RS232 serial port (201) is electrically connected to the transmission line (100) through the first connector board (202). A connection indicator light (300) is mounted on the surface of the first connector (200) and electrically connected to the first connector plate (202), and A second connector (400) includes a connector port (401) electrically connected to the transmission line (100). The second connector (400) also contains a movable rod (402), one end of which extends out of the second connector (400), and the other end is movably mounted within the second connector (400) via a spring switch (403). The spring switch (403) is electrically connected to the transmission line (100) and controls the opening and closing of the connection indicator light (300) via the transmission line (100). The RS232 serial port (201) includes a first port (203) and a second port (204). The first port (203) is electrically connected to a first connection line (101) of the transmission line (100) through the first connection board (202). The second port (204) is electrically connected to the connection indicator light (300) through the first connection board (202) and then electrically connected to a second connection line (102) of the transmission line (100). The spring switch (403) includes a fixed contact (404) and a movable contact (405). The fixed contact (404) is electrically connected to the second connecting line (102), and the movable contact (405) is selectively electrically connected to the first connecting line (101).

2. The serial port conversion cable capable of displaying connection status according to claim 1, characterized in that, The selective electrical connection between the active contact (405) and the first connecting line (101) includes: When the movable rod (402) moves toward the interior of the second connecting seat (400), the movable contact (405) contacts the first connecting line (101) and is electrically connected, so that the connection indicator light (300) is turned on; When the movable rod (402) moves away from the interior of the second connector (400), the movable contact (405) moves away from the first connecting line (101) so that the connection indicator light (300) is disconnected.

3. The serial port conversion cable capable of displaying connection status according to claim 1, characterized in that, A limiting plate (406) is provided at the position where the movable rod (402) connects to the spring switch (403). The limiting plate (406) is located inside the second connecting seat (400), and the spring switch (403) is provided on the limiting plate (406).

4. The serial port conversion cable capable of displaying connection status according to claim 1, characterized in that, A resistor (205) is also electrically connected between the second port (204) and the connection indicator light (300).

5. The serial port conversion cable capable of displaying connection status according to claim 1, characterized in that, The transmission line (100) further includes a signal transmission line (103) and a signal receiving line (104). The signal transmission line (103) is connected between a first transmission terminal (206) of the RS232 serial port (201) and a second transmission terminal (407) of the connection port (401). The signal receiving line (104) is connected between a first receiving terminal (207) of the RS232 serial port (201) and a second receiving terminal (408) of the connection port (401).

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