TWI501079B - Rack system, circuit board combination system and circuit board - Google Patents

Description

Server cabinet system, circuit board assembly system and circuit board thereof

A server cabinet system, a circuit board assembly system and a circuit board thereof, in particular, a server cabinet system, a circuit board assembly system and a circuit board thereof, which exhibit an operating state through an indicator light included in the connector.

Connector refers to all the connecting components used in electrical signals and power supplies and their accessories, which is the bridge between all signals. The quality of the connector will affect the reliability of the signal transmission.

Most of the current connectors only include a fixed wire to prevent the loose casing from being connected to the wire, so that the circuit connected to the connector can output the electrical signal to the wire or can be received through the connector. The electrical signal on the output conductor.

However, after the two electronic devices are connected to each other through the respective connectors and the wires, there is currently no way to know the working states of the two electronic devices, and there is no way to know the overall working state of the system. Thus, when the system composed of the two electronic devices fails to operate normally, the user cannot immediately understand whether the wires are not actually connected to the two electronic devices, or one or both of the two electronic devices are not functioning properly. The user has to test the two electronic devices separately, which is not convenient for the user.

In summary, it has been known in the prior art that there has been a long-standing problem that it is impossible to quickly diagnose whether an electronic device connected to each other through a respective connector cannot operate normally, and therefore it is necessary to propose an improved technical means to solve the problem.

In view of the prior art, there is a problem that it is impossible to quickly diagnose whether an electronic device connected to each other through a respective connector cannot operate normally, and the present invention discloses a server cabinet. The system, the circuit board assembly system and the circuit board thereof, wherein: the server cabinet system disclosed in the present invention comprises at least: the first connector further comprises: a signal transmission pin; the indicator light is electrically connected to the power control unit, When the first connector receives the power good signal, the second indicator light is electrically connected to the first control unit, and is used to be illuminated when the working state signal indicates that the state is normal; at least the server module, each The server module includes: a second control unit; the second connector is electrically connected to the second control unit, thereby providing communication between the second control unit and the cabinet management module, and monitoring the server module and the cabinet management module The working state outputs a system status signal, and connects the connector through a wire. The second connector further includes: a second signal transmission pin, wherein the signal pin is further included; the third indicator light and the presence signal pin Electrical connection, used to indicate that the connection status of the cabinet management module and the server module is normal when the signal pin is present; the fourth indicator light, and the second control unit Connected to the system signal indicates the state of the cabinet is illuminated when the management module to the server module are in their normal working condition.

The circuit board assembly system disclosed by the present invention comprises at least: a main circuit board, comprising: a power control unit for supplying power to the main circuit board and outputting a power good signal when the main circuit board is powered normally; and a control unit for monitoring The working state signal is outputted by the main circuit board; the connector further includes: a signal transmission pin; and the indicator light is electrically connected to the power control unit for receiving the power good signal when the connector is received The second indicator light is connected to the first control unit, and is used to indicate that the working state signal indicates that the state is normal; the sub-board includes: the second control unit; the second connector is electrically connected to the second control unit The second connection comprises: the second control unit communicates with the main circuit board, and monitors the working state of the sub-board and the main circuit to output the system status signal, and connects the connector through the wire, wherein the second connector further comprises: The second signal transmission pin includes a signal pin; the third indicator light is electrically connected to the existing signal pin, and the signal pin is present When the connection state of the sub-board and the main circuit board is normal, the fourth indicator light is electrically connected to the second control unit, and is used when the system status signal indicates that the working state of the main circuit board and the sub-board are normal. It is lit.

The main circuit board disclosed in the present invention comprises at least: a power control unit for supplying power to the main circuit board, and outputting a normal power signal when the main circuit board is powered normally; and a control unit for monitoring the operation of the main circuit board. Status and output working status signal; connector, pass The wire connector is connected to the sub-board, and the connector further comprises: a signal transmission pin for providing communication between the first control unit and the sub-board; the indicator light is electrically connected to the power control unit, and the connector is received by the power supply. The signal is illuminated; the second indicator light is connected to the control unit for indicating that the operating status signal is illuminated when the status is normal.

The sub-circuit board disclosed in the present invention comprises at least: a second connector connected to the main circuit board by a wire; and a second control unit electrically connected to the second connector for monitoring the working state of the sub-board and the main circuit board Outputting a system status signal; wherein, the second connector further comprises: a second signal transmission pin, including a presence signal pin; a third indicator light, an electrical connection presence signal pin, and a presence signal pin indication sub-circuit The board is illuminated when it is properly connected to the main board; the fourth indicator is used to indicate that the system status signal is lit when the system status is normal.

The system and method disclosed in the present invention are as above, and the difference from the prior art is that the present invention separately sets two indicator lights on the interconnected connectors, and the first indicator light and the second indicator light are respectively used to indicate one of them. Whether the power supply of the circuit board is normal and the working state is normal, the third indicator light is used to indicate whether the connection state between the two circuit boards is normal, and the fourth indicator light is used to indicate whether the state of the system composed of the two circuit boards is normal. In order to solve the problems existing in the prior art, it is possible to quickly determine the technical effect of the board in which the abnormality occurs according to the indicator number when the system composed of the two boards is not functioning properly.

101‧‧‧ main board

110‧‧‧Power Control Unit

130‧‧‧First Control Unit

150‧‧‧First connector

151‧‧‧First signal transmission pin

155‧‧‧First indicator light

156‧‧‧second indicator light

201‧‧‧Sub Board

210‧‧‧Power Control Unit

230‧‧‧Second Control Unit

250‧‧‧Second connector

251‧‧‧Second signal transmission pin

255‧‧‧third indicator light

256‧‧‧fourth indicator

300‧‧‧ wire

FIG. 1 is a system architecture diagram of a circuit board assembly system according to the present invention.

Figure 2 is a schematic diagram of the components of the main circuit board of the present invention.

Fig. 3A is a schematic view showing the components of the sub-circuit board of the present invention.

FIG. 3B is a schematic diagram of a circuit connecting the second signal transmission pin and the third indicator light according to the embodiment of the present invention.

The features and embodiments of the present invention are described in detail below with reference to the drawings and embodiments, which are sufficient to enable those skilled in the art to readily understand the present invention. The technical means applied to the problem are implemented and implemented thereby, thereby achieving the achievable effects of the present invention.

The invention can set a connector including two indicator lights on the circuit board, and when the wires are connected with the connectors provided on the circuit board, the user can connect through the connector when the circuit board is connected with other circuit boards. The included indicators determine if the board is working properly. Even when the two boards connected are included in the present invention, the user can judge whether the system composed of the two boards works normally through the indicators included in the connector on the other board.

Wherein, the connector of the present invention may be a single component, or may be composed of multiple components, where two or more indicator lights are included, and one of the two circuit boards can be connected and communicated. An element or a combination of a plurality of elements can be used as the connector of the present invention. For example, a network connector (RJ45), but the invention is not limited thereto.

In addition, the indicator light provided by the present invention is a light-emitting element that can be controlled to emit light and extinguish through a signal, such as a diode, but the invention is not limited thereto. Wherein, the indicator light of the present invention can indicate a predetermined state through illumination and extinction.

Hereinafter, the system operation of the present invention will be described with reference to the system architecture diagram of the circuit board assembly system of the present invention in "Fig. 1". As shown in "Fig. 1", the system of the present invention includes a main circuit board 101 and a sub-board 201. The main circuit board 101 includes a power control unit 110, a first control unit 130, and a first connector 150. The sub-board 201 includes a power control unit 210, a second control unit 230, and a second connector 250.

Hereinafter, each component included in the main circuit board 101 will be described.

The power control unit 110 is responsible for the power required to provide normal operation of the main circuit board 101. In general, the power control unit 110 can be connected to an external power source other than the main circuit board 101, and convert the alternating current supplied from the external power source into a stable direct current, thereby supplying the converted direct current to the main circuit board 101. The various components enable the various components disposed on the main circuit board 101 to function properly.

The power control unit 110 is also electrically connected to the first connector 150, and is responsible for outputting a power good signal to the first connector 150 when the power is normally supplied to the main circuit board 101.

The first control unit 130 is responsible for monitoring the operating state of the main circuit board 101 to generate a corresponding operating state signal. In some embodiments, the first control unit 130 is a substrate tube A controller (BMC), a Complex Programmable Logic Device (CPLD), a Peripheral Interface Controller (PIC), etc., having its own management and monitoring functions, thereby detecting various components disposed on the main circuit board 101. Whether it works normally, when all the components set on the main circuit board 101 are working normally, the first control unit 130 can output an operation state signal indicating that the state is normal, and when any one of the components is abnormal or cannot work normally The first control unit 130 may output an operation status signal indicating that the status is abnormal. However, the manner in which the first control unit 130 monitors the operating state of the main circuit board 101 is not limited to the above.

The first control unit 130 is also electrically connected to the first connector 150 and outputs the generated working state signal to the first connector 150. In addition, the first control unit 130 also passes through the first connector 150 and the sub-board 201. Communicate. For example, the operational status signal is transmitted to the sub-board 201 through the first connector 150.

The first connector 150 can be coupled to the second connector 250 of the sub-board 201 via the wires 300 such that components on the main circuit board 101 can communicate with components on the sub-board 201. At the same time, the first connector 150 can also indicate whether the operating state of the main circuit board 101 is normal.

As shown in FIG. 2, the first connector 150 further includes a first signal transmission pin 151, a first indicator light 155, and a second indicator light 156.

The first signal transmission pin 151 is electrically connected to the first control unit 130, and is also electrically connected to the wire 300, and is responsible for transmitting the signal output by the first control unit 130 to the wire 300, and is also responsible for transmitting the signal on the wire 300. Go to the first control unit 130.

The number of first signal transmission pins 151 is generally related to the number of signal lines included in the wires 300 to which the first connector 150 is connected. For example, when the wires 300 are mesh routes, the first connector 150 may be a network connection. Because the current network route only includes four pairs of signal lines, the first signal transmission pin 151 usually has eight pins, and therefore, the maximum between the main circuit board 101 and the sub-board 201 Simultaneously transmit four pairs of differential pair signals or eight normal signals.

The first indicator light 155 is electrically connected to the power control unit 110 to indicate whether the power supplied to the main circuit board 101 by the power control unit 110 is normal. In some embodiments, the first indicator light 155 is illuminated when the power good signal output by the power control unit 110 is obtained, thereby indicating that the power supplied by the power control unit 110 to the main circuit board 101 is normal. For example, the first indicator light 155 is an LED. When the power control unit 110 provides a power supply normal signal of 3.3 volts to the first indicator light 155, the first indicator light 155 is illuminated. In addition, if the first indicator light 155 is not provided, When the power good signal output by the power control unit 110 is obtained, it will not be lit.

In another portion of the embodiment, the first indicator light 155 can be illuminated in a different color in different states. For example, after the first connector 150 obtains the operating voltage provided by the power control module 110, if the power control module 110 has an output power normal signal to the first connector 150, the signal processing circuit in the first connector 150 (not shown) can generate system normal signal and system abnormal signal, wherein the system normal signal is high, and the system abnormal signal is low. Thus, the first indicator light 155 is used to emit the first color of the diode. It is illuminated to indicate that the power supply provided by the power control unit 110 to the main circuit board 101 is normal; and if the power control module 110 does not output a power good signal to the first connector 150, the first connector 150 will generate a low potential. The system normal signal and the high-level system abnormality signal, so that the diode for emitting the second color in the first indicator light 155 is illuminated, so that the first indicator light 155 may indicate that the power control unit 110 is not normally provided. The power supply to the main circuit board 101, that is, the power supply control unit 110 supplies power to the main circuit board 101 abnormally. The first color and the second color are, for example, green and orange, but the invention is not limited thereto.

The second indicator light 156 is electrically connected to the first control unit 130 to indicate whether the main circuit board 101 is in a normal working state. In some embodiments, the second indicator light 156 will be illuminated when the working status signal outputted by the first control unit 130 indicates that the status is normal, thereby indicating that the main circuit board 101 is in a normal working state, that is, indicating the main circuit. All components on the board 101 are working normally; if the working status signal output by the first control unit 130 indicates that the status is abnormal, the second indicator light 156 will not be illuminated, thereby indicating that the main circuit board 101 is not in normal operation. The state, that is, the presence of one or more components on the main circuit board 101, does not function properly.

In another portion of the embodiment, the second indicator light 156 can be illuminated in a different color in different states. For example, after the first connector 150 obtains the working voltage provided by the power control module 110, the signal processing circuit in the first connector 150 can generate the system normal signal and the system according to the working state signal output by the first control unit 130. Abnormal signal When the working status signal indicates that the working state of the main circuit board 101 is normal, the generated system normal signal is high, and the system abnormal signal is low, so that the second indicator light 156 is used to emit the first color. The polar body is illuminated to indicate that the operating state of the main circuit board 101 is normal; and if the operating state signal indicates that the operating state of the main circuit board 101 is abnormal, the low-level system normal signal and the high-potential system abnormal signal are generated. Therefore, the diode for emitting the second color in the second indicator light 156 is illuminated. Thus, the second indicator light 156 may exhibit an abnormal operation state of the main circuit board 101, that is, the presence of the main circuit board 101. One or more components are not working properly.

Continuing back to "FIG. 1", the components included in the sub-board 201 will be described below.

The power control unit 210 is similar to the power control unit 110 and is responsible for providing DC power generated by external AC power conversion to the various components disposed on the sub-board 201 so that the sub-board 201 can operate normally. In some embodiments, the power control unit 210 is also electrically connected to the second connector 250.

The second control unit 230 is responsible for monitoring the operating state of the sub-board 201.

In addition, the second control unit 230 is also connected to the second connector 250, thereby communicating with the main circuit board 101 through the second connector 250 to obtain the working state of the main circuit board 101, and monitoring the working state of the sub-board 201 according to the monitoring. And the operating state of the main circuit board 101 obtained by the communication generates a system status signal. In some embodiments, the second control unit 230 can even transmit control signals to the main circuit board 101 to manage the main circuit board 101.

In general, the first control unit 130 can transmit the power normal signal for generating the light of the first indicator light 155 and/or the working status signal for generating the light of the second indicator light 156 to the second control unit 230. That is, the power status signal generating the signal of the first indicator light 155 and/or the operation status signal generating the light of the second indicator light 156 is transmitted by the first control unit 130 through the signal line used to transmit the data. Go to the second control unit 230. Therefore, the lights of the first indicator light 155 and the second indicator light 156 are generally not transmitted by the first control unit 130. However, in some embodiments, if the signal line of the wire 300 is sufficient, the first control unit 130 may directly directly display the light of the first indicator light 155 and/or the second indicator light 156, or generate the first indicator light 155. The power good signal of the light source and/or the operation of generating the light of the second indicator light 156 The signal signal is transmitted to the second control unit 230 by the signal line for transmitting the control signal, so that the second control unit 230 directly obtains the light signals displayed by the first indicator light 155 and the second indicator light 156. The signal line used for transmitting the data signal in the wire 300 can also transmit the data signal together.

The second connector 250 is electrically connected to the second control unit 130 and connected to the first connector 150 through the wire 300, so that the components on the sub-board 201 can communicate with the components on the main circuit board 101. At the same time, the second connector 250 can also indicate whether the operating state of the system composed of the main circuit board 101 and the sub-board 201 is normal.

As shown in FIG. 3A, the second connector 250 further includes a second signal transmission pin 251, a third indicator light 255, and a fourth indicator light 256.

The second signal transmission pin 251 is electrically connected to the second control unit 130, and is also electrically connected to the wire 300, and is responsible for transmitting the signal output by the second control unit 230 to the wire 300, and is also responsible for transmitting the signal on the wire 300. Go to the second control unit 230.

The number of the second signal transmission pins 251 is generally related to the number of signal lines included in the wires 300 to which the second connector 250 is connected. For example, when the wires 300 are routed, the second signal transmission pins 251 are usually provided. Eight pins.

It is to be noted that, as shown in "FIG. 3B", one of the plurality of pins of the second signal transmission pin 251 is referred to as "present signal pin" in the present invention. There is a signal pin third indicator light 255 connected. In some embodiments, the presence signal pin is also coupled to the second control unit 230.

The signal in the signal pin is usually a sustained high potential. That is to say, after the main circuit board 101 and the sub-board 201 are connected through the wire 300, the first control unit 130 connects the existing signal to the wire 300. The signal line connected to the foot continues to transmit a high potential signal.

The third indicator light 255 is electrically connected to the presence signal pin to indicate whether the connection state of the main circuit board 101 and the sub-board 201 is normal. After the main circuit board 101 is connected to the sub-board 201, since the first control unit 130 continues to transmit a high-potential signal to the signal line connected to the signal pin in the wire 300, there is a signal pin. The signal continues to be high, and if the main circuit board 101 is not connected to the sub-board 201, there will be no signal on the signal pin, so it is low, and the third indicator 255 can be based on the presence signal pin. The signal indicates whether the connection state of the main circuit board 101 and the sub-board 201 is normal.

In some embodiments, when the signal on the signal pin is high, the third indicator light 255 is illuminated, thereby indicating that the connection state between the main circuit board 101 and the sub-board 201 is normal, and if present, If the signal on the signal pin is low, the third indicator 255 will not be illuminated, which means that the main circuit board 101 and the sub-board 201 are not connected.

In another portion of the embodiment, the third indicator light 255 can be illuminated in a different color to indicate the connection state between the main circuit board 101 and the sub-circuit board 201. For example, after the second connector 250 obtains the working voltage provided by the power control module 210, the signal processing circuit (not shown) in the second connector 250 can generate a connection normal signal according to the signal on the signal pin. And the connection abnormal signal, wherein when the signal on the signal pin is high, the generated connection normal signal is high, and the connection abnormal signal is low, so the third indicator 255 is used to issue the first The color diode is illuminated to show that the connection state between the main circuit board 101 and the sub-board 201 is normal; and if there is a low potential on the signal pin, the low potential connection is normal and the high potential A connection abnormality signal is generated, so that the diode for emitting the second color in the third indicator light 255 is illuminated, and thus, the third indicator light 255 is displayed between the main circuit board 101 and the sub-board 201. If it is not connected, if the main circuit board 101 and the sub-board 201 are connected by the transmission wire 300 at this time, it means that the connection state between the main circuit board 101 and the sub-board 201 is abnormal.

The fourth indicator light 256 is electrically connected to the second control unit 230 to indicate whether the system composed of the main circuit board 101 and the sub-board 201 is in a normal working state. In some embodiments, similar to the second indicator light 156, the fourth indicator light 256 will be illuminated when the system status signal outputted by the second control unit 230 indicates that the status is normal, thereby indicating the main circuit board 101 and The system composed of the sub-board 201 is in a normal working state, that is, all the components on the main circuit board 101 and the sub-board 201 are normally operated; and if the system status signal output by the second control unit 230 indicates that the status is abnormal At this time, the fourth indicator light 256 will not be illuminated, thereby indicating that the system composed of the main circuit board 101 and the sub-board 201 is not in a normal working state, that is, on the main circuit board 101 and/or the sub-board 201. One or more components are not working properly. Wherein, when the fourth indicator light 256 is not illuminated, if the second indicator light 156 is illuminated, it indicates that one or more components on the sub-board 201 are not working properly.

In another portion of the embodiment, the fourth indicator light 256 can be illuminated to a different color in different system states. For example, after the second connector 250 obtains the working voltage provided by the power control module 210, the signal processing circuit in the second connector 250 can generate the system normal signal and the system according to the system status signal output by the second control unit 230. An abnormal signal, wherein when the system status signal indicates that the system state of the system composed of the main circuit board 101 and the sub-board 201 is normal, the generated system normal signal is high, and the system abnormal signal is low, thus, the fourth The diode for emitting the first color in the indicator light 256 is illuminated, thereby indicating that the system state of the system composed of the main circuit board 101 and the sub-board 201 is normal; and if the system status signal indicates the main circuit board 101 and If the operating state of the system composed of the sub-board 201 is abnormal, the low-level system normal signal and the high-potential system abnormal signal are generated, so that the diode for the second color in the fourth indicator 256 is to be clicked. Bright, whereby the system state of the system composed of the main circuit board 101 and the sub-board 201 is abnormal, that is, the main circuit board 101 and/or One or more components on the sub-board 201 are not working properly.

In addition, the first connector 150 of the main circuit board 101 and the second connector 250 of the sub-board 201 are connected via a wire 300. The wire 300 of the present invention is a transmission line capable of transmitting a control signal or a data signal. Two ends of the wire 300 are respectively connected to the first connector 150 and the second connector 250, and one end of the wire 300 connected to the first connector 150 is connected. It will be compatible with the first connector 150, and the other end connected to the second connector 250 will also be compatible with the second connector 250. For example, when the wire 300 is a mesh route, the first connector 150 and the second connector 250 will be network interfaces (RJ45) compatible with the mesh route, but the wire 300 of the present invention is not The route is limited. For example, it may be a transmission line having the same connection at both ends, such as a serial connection line or a USB connection line, or even a transmission line having different ends, for example, a serial to USB connection line.

As can be seen from the above, according to the present invention, when the user can connect two boards, the operating status of the board can be understood through the indicators included in the connectors provided on one of the boards (the main board 101), and even The overall working state of the connected circuit board can be known through the indicators included in the connector provided on the other circuit board (sub-board 201).

In addition, the power control unit 110, the first control unit 130, and the first connector 150 are also not limited to being disposed on the main circuit board 101. Similarly, the power control unit 210, the second The control unit 230 and the second connector 250 are also not limited to being disposed on the sub-board 201, and may be actually dispersed in a plurality of hardware included in one device, for example, the power control unit 110 and the first control unit 130. The first connector 150 can be dispersed in a cabinet management module (not shown) of a server cabinet (not shown), and the power control unit 210, the second control unit 230, and the second connector 250 can be dispersed in A server module (not shown) of the server cabinet, and the second connector 250 on the server module and the first connector on the cabinet management module can be connected through the network route.

In summary, it can be seen that the difference between the present invention and the prior art is that there are two indicator lights respectively disposed on the interconnected connectors, and the first indicator light and the second indicator light are respectively used to indicate the power supply of one of the circuit boards. Whether the supply is normal and the working status is normal, the third indicator light is used to indicate whether the connection state between the two circuit boards is normal, and the fourth indicator light is used to indicate whether the state of the system composed of the two circuit boards is normal or not. Therefore, the technical solution can solve the problem that the prior art cannot quickly diagnose whether the electronic devices connected to each other through the respective connectors are unable to operate normally, and thus, when the system composed of the two circuit boards cannot operate normally, the indicator light is fast. Determine the technical effectiveness of the board in which the abnormality occurred.

While the embodiments of the present invention have been described above, the above description is not intended to limit the scope of the invention. Any modification of the form and details of the practice of the present invention, which is a matter of ordinary skill in the art to which the present invention pertains, is a patent protection of the present invention. range. The scope of the invention is to be determined by the scope of the appended claims.

150‧‧‧First connector

230‧‧‧Second Control Unit

250‧‧‧Second connector

251‧‧‧Second signal transmission pin

255‧‧‧third indicator light

256‧‧‧fourth indicator

Claims (12)

A server cabinet system includes: a cabinet management module, comprising: a power control unit, configured to supply power to the cabinet management module; and output a power good signal when the cabinet management module is powered normally; a first control unit for monitoring the working state of the cabinet management module to output a working status information; and at least one first connector, each of the first connectors further comprising: a plurality of first signal transmission pins a first indicator light electrically connected to the power control unit for being illuminated when the first connector receives the power good signal; and a second indicator light electrically connected to the first control unit a connection for illuminating when the status signal indicates that the status is normal; and at least one server module, each of the server modules comprising: a second control unit; and a second connector, and the The second control unit is electrically connected to provide communication between the second control unit and the cabinet management module, and monitors the working state of the server module and the cabinet management module to output a system status signal, and Connecting the first connector to the first connector, wherein the second connector further comprises: a plurality of second signal transmission pins, further comprising a presence signal pin; a third indicator light, and the presence signal pin The electrical connection is used to indicate that the connection status of the cabinet management module and the server module is normal when the signal pin is normal; and a fourth indicator light is electrically connected to the second control unit. Used for this The system status signal indicates that the cabinet management module and the server module are illuminated when they are in normal working condition. The server cabinet system of claim 1, wherein the wire is a mesh route, the first connector and the second connector are a network connector (RJ45), and the network connector is a network connector Monomer or a combination. The server cabinet system of claim 1, wherein the first indicator light is further used to illuminate a first color when the first connector receives the power good signal, and the first When the connector does not receive the power good signal, the second color is illuminated; the second indicator is used to indicate that the working state signal indicates that the state is normal, the first color is illuminated, and the working state signal is When the state is abnormal, the second color is illuminated; the third indicator light is used to indicate that the cabinet management module is normally connected to the server module and is illuminated by the first color, and The second pin is illuminated when the signal pin indicates that the connection status between the cabinet management unit and the server module is abnormal; the fourth indicator is used to indicate the cabinet management unit and the server. The first color is illuminated when the module is in a normal working state, and the second color is illuminated when the system status signal indicates that the cabinet management unit and the server module are not in a normal working state. A circuit board assembly system comprising: a main circuit board, comprising: a power control unit for supplying power to the main circuit board and outputting a power good signal when the main circuit board is powered normally; a first control unit, Outputting a working status signal for monitoring the working state of the main circuit board; and a first connector, wherein the method further comprises: a plurality of first signal transmission pins; a first indicator light electrically connected to the power control unit for being illuminated when the first connector receives the power good signal; and a second indicator light Connected to the first control unit for indicating that the working state signal is illuminated when the state is normal; and a sub-board comprising: a second control unit; and a second connector electrically coupled to the second control unit a connection between the second control unit and the main circuit board, and monitoring the working state of the sub-board and the main circuit to output a system status signal, and connecting the first connector through a wire, wherein The second connector further includes: a plurality of second signal transmission pins, including a presence signal pin; a third indicator light electrically connected to the presence signal pin, and indicating the The sub-board is electrically connected to the main circuit board; and a fourth indicator light is electrically connected to the second control unit, and the system status signal indicates the main circuit board and the sub-circuit Board work Is lighted state were normal. The circuit board assembly system of claim 4, wherein the wire is a mesh route, the first connector and the second connector are a network connector (RJ45), and the network connector is a network connector Monomer or a combination. The circuit board assembly system of claim 4, wherein the first indicator light is further configured to be illuminated by the first color when the first connector receives the power good signal, and the first color The second color is illuminated when the connector does not receive the power good signal; The second indicator light is further configured to illuminate the first color when the working state signal indicates that the state is normal, and to illuminate the second color when the working state signal indicates that the state is abnormal; the third indicator light is further used When the presence signal pin indicates that the main circuit board is normally connected to the sub-board, the first color is illuminated, and when the presence signal pin indicates that the connection state between the main circuit board and the sub-board is abnormal, Illuminating the second color; the fourth indicator light is further configured to: when the system status signal indicates that the main circuit board and the sub-board are in a normal working state, the first color is illuminated, and the system status signal is The second color is illuminated when the main circuit board and the sub-board are not in the normal working state. A main circuit board is configured to connect a sub-board, the main circuit board includes: a power control unit for supplying power to the main circuit board, and outputting a power normal signal when the main circuit board is powered normally; a first control unit for monitoring an operating state of the main circuit board to output a working state signal; and a first connector connecting the sub-board through a wire, the first connector further comprising: a plurality of signal transmissions a pin for providing the first control unit to communicate with the sub-board; a first indicator electrically connected to the power control unit for being illuminated when the first connector receives the power good signal; And a second indicator light connected to the first control unit for indicating that the working status signal is illuminated when the status is normal. The main circuit board of claim 7, wherein the wire is a mesh route, and the first connector is a network connector (RJ45), and the network connector is in a single unit or a combination. The main circuit board of claim 7, wherein the first indicator light is further used to illuminate a first color when the first connector receives the power good signal, and the first connection When the device does not receive the power good signal, it is illuminated by a second color; the second indicator light is further used to illuminate the first color when the working state signal indicates that the state is normal, and the working state signal indicates the state The second color is illuminated when an abnormality occurs. a sub-board for connecting a main circuit board, the sub-board includes: a second connector connected to the main circuit board by a wire; and a second control unit electrically connected to the second connector And outputting a system status signal for monitoring the working state of the sub-board and the main circuit board; wherein the second connector further comprises: a plurality of signal transmission pins, including a presence signal pin; a third An indicator light electrically connected to the presence signal pin for illuminating when the presence signal pin indicates that the sub-board is normally connected to the main circuit board; and a fourth indicator light for indicating the status signal of the system Lights up when the system status is normal. The sub-circuit board of claim 10, wherein the wire is a mesh route, and the second connector is a network connector (RJ45), the network connector being in a single unit or a combination. The sub-board of claim 10, wherein the third indicator is further configured to illuminate a first color when the presence signal pin indicates that the main circuit board is normally connected to the sub-board, and When the presence signal pin indicates that the main circuit board is abnormally connected to the sub-board, a second color is illuminated; the fourth indicator light is further used when the system status signal indicates that the system state is normal. The first color, and the second color is illuminated when the connection status signal indicates that the system status is abnormal.