CN118368261A - Electric port module - Google Patents

Abstract

The present application provides an electrical port module, including a circuit board, a network port terminal, a PHY chip and an MCU arranged on the circuit board, and the end of the circuit board is provided with a gold finger including an I2C and a multiplexed pin; the PHY chip includes a status register for storing a status register value corresponding to the link status of the network port terminal; one end of the MCU receives a host device instruction through an I2C pin, and the other end of the MCU is connected to the PHY chip to obtain the status register value, and sends a corresponding level signal to the multiplexed pin according to the status register value; the first register in the MCU is used to store a register value corresponding to the host device instruction, and the MCU performs a corresponding function setting on the multiplexed pin according to the register value, so as to obtain the link status of the network port terminal according to the level signal of the multiplexed pin. The present application gives a new function to the multiplexed pin, and the host device conveniently obtains the link status of the network port side through the level state of the multiplexed pin, which is convenient for user identification.

Description

An electrical port module

Technical Field

The present application relates to the field of optical communication technology, and in particular to an electrical port module.

Background technique

The electrical port module, also known as the optical port to electrical port module, is a photoelectric conversion optical module. It is also a type of module that is frequently used in optical communications. It is used to transmit electrical signals and is widely used. For example, it is used on optical network terminals to connect network cables to host devices such as optical network terminals. Network port terminals and gold fingers are set on the circuit board of the electrical port module. When the electrical port module is used on host devices such as optical network terminals, the gold fingers of the electrical port module are electrically connected to the circuit boards in the host devices such as optical network terminals, and the external network cables are connected to the network port terminals through connectors.

The electrical port module is a module with SFP+ packaging in the structural size, and the interface uses SFP gold finger and RJ45 terminal. It supports hot plugging and can be inserted into the SFP port of network equipment such as switches, and transmit data through network cables. However, due to its unique SFP+ structure, the working status of its RJ45 end cannot be easily obtained by the HOST device and users.

Summary of the invention

An embodiment of the present application provides an electrical port module to monitor the working status of the RJ45 end of the electrical port module.

The present application provides an electrical port module, including:

A circuit board, with a gold finger disposed at the end thereof, wherein the gold finger includes an I2C pin and a multiplexed pin;

A network port terminal, electrically connected to the circuit board, and used for signal transmission via a network cable;

A PHY chip, arranged on the circuit board, comprising a status register, wherein the status register is used to store a status register value corresponding to the link status of the network port terminal;

MCU, arranged on the circuit board, one end of which is connected to the I2C pin and the multiplexing pin, and receives host device instructions through the I2C pin; the other end of which is connected to the PHY chip, and is used to access and obtain the status register value, and send a corresponding level signal to the multiplexing pin according to the status register value;

Among them, the MCU includes a first register, which is used to store a register value corresponding to the host device instruction, and the MCU sets the corresponding function of the multiplexed pin according to the register value; when the function of the multiplexed pin is the network port status indication function, the link status of the network port terminal is obtained according to the level signal of the multiplexed pin.

It can be seen from the above embodiments that the electrical port module provided in the embodiments of the present application includes a circuit board, a network port terminal, a PHY chip and an MCU. A gold finger is provided at the end of the circuit board, and the gold finger includes an I2C pin and a multiplexing pin; the network port terminal is electrically connected to the circuit board for signal transmission through a network cable; the PHY chip is arranged on the circuit board, and includes a status register, which is used to store a status register value corresponding to the link status of the network port terminal, and the link status of the network port side of the electrical port module can be obtained through the status register value; the MCU is arranged on the circuit board, and one end of the MCU is connected to the I2C pin and the multiplexing pin to realize the communication connection between the MCU and the host device through the I2C pin and receive the host device instruction; the MCU The first register is included, and the first register is used to store the register value corresponding to the host device instruction. The MCU sets the corresponding function of the multiplexed pin according to the register value, thereby selecting the function of the multiplexed pin according to the host device instruction, and giving the multiplexed pin a new function, such as the network port status indication function; the other end of the MCU is connected to the PHY chip to access the status register to obtain the status register value, thereby obtaining the link status of the network port side of the electrical port module; when the function of the multiplexed pin is the network port status indication function, the MCU sends a corresponding level signal to the multiplexed pin according to the status register value, so that the host device can obtain the link status of the network port side of the electrical port module according to the level signal of the multiplexed pin, which is convenient for users to identify. This application reuses a pin in the gold finger, and gives a new function to the multiplexed pin. The MCU sends a corresponding level signal to the multiplexed pin according to the link status of the network port terminal, and indicates the link status of the electrical port module through the level status of the multiplexed pin. The HOST device can easily obtain and display the link status of the network port side of the electrical port module, and can easily determine whether the function of the product is normal, which is convenient for users to identify.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

FIG1 is a connection diagram of an optical communication system according to some embodiments;

FIG2 is a schematic diagram of the structure of an electrical port module according to some embodiments;

FIG3 is a partial exploded schematic diagram of an electrical port module according to some embodiments;

FIG4 is a schematic diagram of the assembly of a circuit board and a network port terminal in an electrical port module provided in an embodiment of the present application;

FIG5 is a schematic diagram of the structure of a circuit board in an electrical port module provided in an embodiment of the present application;

FIG6 is a circuit diagram of an electrical port module provided in an embodiment of the present application;

FIG7 is a circuit block diagram of an electrical port module provided in an embodiment of the present application;

FIG8 is a schematic structural diagram of a lower housing in an electrical port module provided in an embodiment of the present application;

FIG9 is a schematic diagram of the assembly of a lower housing, a circuit board and a network port terminal in an electrical port module provided in an embodiment of the present application;

FIG10 is a schematic diagram of the first assembly of a cover plate and an unlocker in an electrical port module provided in an embodiment of the present application;

FIG11 is a second schematic diagram of assembly of a cover plate and an unlocker in an electrical port module provided in an embodiment of the present application;

FIG12 is a schematic diagram of the assembly of a lower housing, a circuit board, a cover plate and an unlocker in an electrical port module provided in an embodiment of the present application;

13 is an assembly diagram of a lower housing, a circuit board, a cover, an unlocker and a handle in an electrical port module provided in an embodiment of the present application.

Detailed ways

The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

In an optical communication system, light signals are used to carry information to be transmitted, and the light signals carrying information are transmitted to information processing equipment such as computers through information transmission equipment such as optical fibers or optical waveguides to complete the transmission of information. Since light has passive transmission characteristics when transmitted through optical fibers or optical waveguides, low-cost and low-loss information transmission can be achieved. In addition, the signals transmitted by information transmission equipment such as optical fibers or optical waveguides are optical signals, while the signals that can be recognized and processed by information processing equipment such as computers are electrical signals. Therefore, in order to establish an information connection between information transmission equipment such as optical fibers or optical waveguides and information processing equipment such as computers, it is necessary to realize the mutual conversion between electrical signals and optical signals.

The electrical port module realizes the above-mentioned mutual conversion function between optical signals and electrical signals in the field of optical communication technology. The electrical port module includes an optical port and an electrical port. The electrical port module realizes optical communication with information transmission equipment such as optical fiber or optical waveguide through the optical port, and realizes electrical connection with the optical network terminal (for example, optical modem) through the electrical port. The electrical connection is mainly used for power supply, I2C signal transmission, data information transmission and grounding, etc. The optical network terminal transmits the electrical signal to information processing equipment such as computers through network cables or wireless fidelity technology (Wi-Fi).

FIG1 is a connection diagram of an optical communication system according to some embodiments. As shown in FIG1 , the optical communication system includes a remote server 1000 , a local information processing device 2000 , an optical network terminal 100 , an optical module 200 , an optical fiber 101 and a network cable 103 .

One end of the optical fiber 101 is connected to the remote server 1000, and the other end is connected to the optical network terminal 100 through the optical module 200. The optical fiber itself can support long-distance signal transmission, such as signal transmission of several kilometers (6 kilometers to 8 kilometers). On this basis, if a repeater is used, infinite distance transmission can be achieved in theory. Therefore, in a common optical communication system, the distance between the remote server 1000 and the optical network terminal 100 can usually reach several kilometers, tens of kilometers or hundreds of kilometers.

One end of the network cable 103 is connected to the local information processing device 2000, and the other end is connected to the optical network terminal 100. The local information processing device 2000 can be any one or more of the following devices: a router, a switch, a computer, a mobile phone, a tablet computer, a television, etc.

The physical distance between the remote server 1000 and the optical network terminal 100 is greater than the physical distance between the local information processing device 2000 and the optical network terminal 100. The connection between the local information processing device 2000 and the remote server 1000 is completed by the optical fiber 101 and the network cable 103; and the connection between the optical fiber 101 and the network cable 103 is completed by the optical module 200 and the optical network terminal 100.

The optical module 200 includes an optical port and an electrical port. The optical port is configured to be connected to the optical fiber 101, so that the optical module 200 establishes a bidirectional optical signal connection with the optical fiber 101; the electrical port is configured to be connected to the optical network terminal 100, so that the optical module 200 establishes a bidirectional electrical signal connection with the optical network terminal 100. The optical module 200 realizes the mutual conversion between optical signals and electrical signals, so that an information connection is established between the optical fiber 101 and the optical network terminal 100. For example, the optical signal from the optical fiber 101 is converted into an electrical signal by the optical module 200 and then input into the optical network terminal 100, and the electrical signal from the optical network terminal 100 is converted into an optical signal by the optical module 200 and then input into the optical fiber 101. Since the optical module 200 is a tool for realizing the mutual conversion between optical signals and electrical signals and does not have the function of processing data, the information does not change during the above-mentioned photoelectric conversion process.

The optical network terminal 100 includes a housing that is roughly in the shape of a rectangular parallelepiped, and an optical port module interface 102 and a network cable interface 104 arranged on the housing. The optical port module interface 102 is configured to access the optical module 200, so that the optical network terminal 100 establishes a bidirectional electrical signal connection with the optical module 200; the network cable interface 104 is configured to access the network cable 103, so that the optical network terminal 100 establishes a bidirectional electrical signal connection with the network cable 103. The optical module 200 and the network cable 103 are connected through the optical network terminal 100. For example, the optical network terminal 100 transmits the electrical signal from the optical module 200 to the network cable 103, and transmits the electrical signal from the network cable 103 to the optical module 200. Therefore, the optical network terminal 100, as the host computer of the optical module 200, can monitor the operation of the optical module 200. In addition to the optical network terminal 100, the host computer of the optical module 200 can also include an optical line terminal (Optical Line Terminal, OLT) and the like.

The remote server 1000 establishes a bidirectional signal transmission channel with the local information processing device 2000 through the optical fiber 101 , the optical module 200 , the optical network terminal 100 and the network cable 103 .

To facilitate access to the network cable 103, the network cable interface 104 of the optical network terminal 100 includes an electrical port module, on which a network port terminal is provided, and the network port terminal is connected through a connector of the network cable 103. In the embodiment of the present application, the electrical port module is not only used for the optical network terminal 100, but also can be used for host devices such as routers and switches.

Fig. 2 is a structural diagram of an electrical port module according to some embodiments, and Fig. 3 is an exploded diagram of an electrical port module according to some embodiments. As shown in Fig. 2 and Fig. 3, the electrical port module 300 includes a shell, a circuit board 310 disposed in the shell, and a device electrically connected to the circuit board 310.

The shell comprises an upper shell 301 and a lower shell 302 . The upper shell 301 covers the lower shell 302 to form the above shell with two openings. The outer contour of the shell is generally a square body.

In some embodiments of the present disclosure, the lower shell 302 includes a bottom plate and two lower side plates located on both sides of the bottom plate and arranged perpendicular to the bottom plate; the upper shell 301 includes a cover plate, which is covered on the two lower side plates of the lower shell 302 to form the above-mentioned shell.

In some embodiments, the lower shell 302 includes a bottom plate and two lower side plates located on both sides of the bottom plate and arranged perpendicularly to the bottom plate; the upper shell 301 includes a cover plate and two upper side plates located on both sides of the cover plate and arranged perpendicularly to the cover plate, and the two upper side plates are combined with the two lower side plates to achieve the upper shell 301 covering the lower shell 302.

The direction of the connection line of the two openings 304 and 305 may be consistent with the length direction of the electrical port module 300, or may be inconsistent with the length direction of the electrical port module 300. For example, the opening 304 is located at the end of the electrical port module 300 (the right end of FIG. 3 ), and the opening 305 is also located at the end of the electrical port module 300 (the left end of FIG. 3 ). Alternatively, the opening 304 is located at the end of the electrical port module 300, and the opening 305 is located at the side of the electrical port module 300. The opening 304 is an electrical port, and the gold finger of the circuit board 310 extends from the electrical port and is inserted into the upper computer (for example, the optical network terminal 100); the opening 305 is an optical port, which is configured to access the external network cable 103 so that the network cable 103 is connected to the network port terminal inside the electrical port module 300.

The upper housing 301 and the lower housing 302 are combined to facilitate installation of components such as the circuit board 310 into the housing, and these components are packaged and protected by the upper housing 301 and the lower housing 302. In addition, when assembling components such as the circuit board 310, it is convenient to deploy the positioning components, heat dissipation components, and electromagnetic shielding components of these components, which is conducive to automated production.

In some embodiments, the upper shell 301 and the lower shell 302 are generally made of metal materials, which is conducive to electromagnetic shielding and heat dissipation.

In some embodiments, the electrical port module 300 further includes an unlocking component 303 located outside its shell, and the unlocking component 303 is configured to achieve a fixed connection between the electrical port module 300 and the host computer, or to release the fixed connection between the electrical port module 300 and the host computer.

For example, the unlocking component 303 is located on the outer wall of the two lower side plates of the lower housing 302, and has a snap-fit component that matches the cage of the host computer (for example, the cage of the optical network terminal 100). When the electrical port module 300 is inserted into the cage of the host computer, the snap-fit component of the unlocking component 303 fixes the electrical port module 300 in the cage of the host computer; when the unlocking component 303 is pulled, the snap-fit component of the unlocking component 303 moves accordingly, thereby changing the connection relationship between the snap-fit component and the host computer, so as to release the snap-fit relationship between the electrical port module 300 and the host computer, so that the electrical port module 300 can be pulled out of the cage of the host computer.

The circuit board 310 includes circuit traces, electronic components and chips. The electronic components and chips are connected together according to the circuit design through the circuit traces to realize functions such as power supply, electrical signal transmission and grounding. Electronic components include capacitors, resistors, transistors, metal-oxide-semiconductor field-effect transistors (MOSFET). Chips include microcontroller units (MCU), clock and data recovery (CDR) chips, power management chips, etc.

The circuit board 310 is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also realize the load-bearing function. For example, the rigid circuit board can stably carry the above-mentioned electronic components and chips; the rigid circuit board can also be inserted into the electrical connector in the upper computer cage.

The electrical port module 300 is a module with SFP+ packaging in the structural dimensions, and the interfaces use SFP gold fingers and RJ45 terminals respectively. It contains an MCU chip, a PHY chip, a network port terminal and SFP+ gold fingers, supports hot plugging, can be inserted into the SFP port of network devices such as switches, and transmit data through network cables. However, due to its unique SFP+ structure, the working status of its RJ45 terminal cannot be easily obtained by the HOST device and users.

In order to solve the above problems, this application gives a new definition to the PIN8 pin in the SFP+ gold finger, defining it as a network port status indication signal. The HOST device can identify the link status of the RJ45 network port terminal through the status of the PIN8 pin, and easily determine whether the product function is normal.

FIG4 is a schematic diagram of the assembly of a circuit board and a network port terminal in an electrical port module provided in an embodiment of the present application, and FIG5 is a schematic diagram of the structure of a circuit board in an electrical port module provided in an embodiment of the present application. As shown in FIG4 and FIG5, the circuit board 310 includes a gold finger 311 formed on the surface of its end, and the gold finger 311 is composed of a plurality of independent pins. The circuit board 310 is inserted into the cage of the host device, and the gold finger 311 is connected to the electrical connector in the cage of the host device. The gold finger 311 can be set only on the surface of one side of the circuit board 310 (for example, the upper surface shown in FIG4), or it can be set on the surfaces of the upper and lower sides of the circuit board 310 to adapt to occasions where the number of pins is large. The gold finger 311 is configured to establish an electrical connection with the host computer to realize power supply, grounding, I2C signal transmission, data signal transmission, etc. In the embodiment of the present application, the gold finger 311 includes an I2C pin, an RX_LOS pin, etc., which are used to realize the communication connection between the host device and the device in the electrical port module 300.

The circuit board 310 includes an MCU312, a PHY chip 313 and an Ethernet port terminal 314. The MCU312, the PHY chip 313 and the Ethernet port terminal 314 are electrically connected to the circuit board 310 respectively, and are electrically connected to each other through the wiring on the circuit board 310. The Ethernet port terminal 314 is used to connect the adapter network cable 103.

Fig. 6 is a circuit diagram of an electrical port module provided in an embodiment of the present application. As shown in Fig. 6, the MCU 312 includes an I2C interface, which is electrically connected to the I2C pin in the gold finger 311, and is used to realize the I2C communication between the MCU 312 and the host device; the PHY chip 313 includes a Serdes interface, which is connected to the Serdes interface pins in the gold finger 311 through differential signal lines, and is connected to the Serdes interface of the host device through the Serdes interface pins.

After MCU312 is electrically connected to the gold finger 311, the optical network terminal 100 transmits the signal to the gold finger 311, the gold finger 311 transmits the signal to MCU312 via the wiring, MCU312 controls the signal to be transmitted to the network port terminal 314, the network cable 103 is inserted into the network port terminal 314, and the signal is then transmitted to the local information processing device 2000 via the network cable 103, thereby realizing the electrical connection between the optical network terminal 100 and the local information processing device 2000 through the electrical port module 300.

Usually, in optical module products, an RX_LOS (Receive Loss of Signal Alarm) pin is designed in its interface. In hardware circuit design, the status of the RX_LOS pin is monitored to obtain information about whether the received signal is lost. In Ethernet, when the system detects a change in the RX_LOS state, it will quickly generate an RX_LOS interrupt and report it to the processing system, which then responds and processes it in a timely manner. This processing method of quickly reporting the RX_LOS state change in the form of an RX_LOS interrupt is one of the important means for Ethernet to achieve fast link switching.

According to the MAS-8431 protocol requirements, the 8th pin of the PIN pin at the gold finger 311 end (referred to as PIN8) is defined as the RX_LOS pin, which is used to transmit the RX_LOS signal to indicate whether the received signal is found, that is, whether the optical signal is received or not, and whether the optical signal has LOS, according to the level state of the PIN8 pin. The definition is as follows:

(1) When the level of PIN8 is high, it means that no receiving signal is found;

(2) When the level of PIN8 is low, it indicates that the receiving signal is detected.

In some embodiments, the MCU 312 also includes an RX_LOS interface, the gold finger 311 includes an RX_LOS pin (PIN8 pin), and the RX_LOS interface is electrically connected to the RX_LOS pin through a wiring to directly reflect whether the received signal is normal. For example, when the received signal is not lost, RX_LOS = 0; when the received signal is lost, RX_LOS = 1.

Since the module in the present application is an electrical port module, there is no need to use the PIN8 pin to detect whether the electrical port module has received an optical signal. In order for the HOST device to easily obtain the link status of the network port side of the electrical port module 300, the PIN8 pin in the gold finger 311 can be reused, and the PIN8 pin is given a new function, defined as a network port status indication signal, so that the HOST device can obtain the link status of the RJ45 network port terminal through the level status of the PIN8 pin.

In some embodiments, a first register is provided in the MCU312, and the first register is used to store different register values, and different register values are used to indicate different functions of the PIN8 pin, so that the PIN8 pin has different function selections. The MCU312 receives a host device instruction through an I2C pin, and the host device instruction is used to indicate the function of the PIN8 pin. The MCU312 stores the corresponding register value in the first register according to the host device instruction, and the MCU312 performs the corresponding function on the PIN8 pin according to the different register values, so as to change the first register to select the function of the PIN8 pin.

Specifically, when the host device needs to set the function of the PIN8 pin, it will send the corresponding host device instructions to MCU312 through the I2C communication bus. MCU312 stores different register values, such as the first register value and the second register value, in the first register according to the different host device instructions received. MCU312 selects the function of the PIN8 pin according to the register value stored in the first register.

For example, when the first register value is stored in the first register, the PIN8 pin defaults to the RX_LOS pin, which is used to detect whether the received signal is lost; when the second register value is stored in the first register, the PIN8 pin is expanded and defined as a network port status indication pin, which is used to report the link status of the network port side of the electrical port module 300.

In some embodiments, MCU312 may use 00 in the first register to correspond to the RX_LOS function of the PIN8 pin, and use 01 to correspond to the network port status indication function of the PIN8 pin. For example, when MCU312 receives an instruction from the host device to configure the PIN8 pin as the RX_LOS pin, MCU312 sets the register value of the first register to the first register value 00, and feeds back the configuration result to the host device; when MCU312 polls or otherwise learns that the register value of the first register is 00, the PIN8 pin is defined as the RX_LOS pin.

When MCU312 receives an instruction from the host device to configure PIN8 as a network port status indication pin, MCU312 sets the register value of the first register to the second register value 01, and feeds back the configuration result to the host device; when MCU312 polls or otherwise learns that the register value of the first register is 01, PIN8 is defined as a network port status indication pin.

In some embodiments, the first register in the MCU 312 may be a register of A2 in the MCU 312 , such as B6 , or may be other registers in the MCU 312 .

In some embodiments, the MCU312 further includes an MDIO interface, and the MCU312 is connected to the PHY chip 313 through the MDIO interface to access the PHY chip 313 through the MDIO interface, thereby obtaining the working state of the PHY chip 313. The MCU312 outputs a level signal to the PIN8 pin according to the working state of the PHY chip 313, and indicates the link state of the network port terminal 314 according to the level state of the PIN8 pin, that is, the host device can obtain the link state of the network port side of the electrical port module 300 according to the level state of the PIN8 pin at this time.

When MCU312 sends a corresponding level signal to the PIN8 pin according to the working status of the PHY chip 313, MCU312 can directly power the PIN8 pin so that the PIN8 pin has a corresponding level value, such as a high level or a low level; the PIN8 pin is electrically connected to a power supply unit, and the MCU312 is control-connected to the power supply unit. The MCU312 sends a corresponding control signal to the power supply unit so that the power supply unit provides a corresponding voltage to the PIN8 pin so that the PIN8 pin has a corresponding level value.

In some embodiments, the PHY chip 313 is a physical interface transceiver that implements the physical layer IEEE-802.3 standard that defines Ethernet PHY, including the MII/GMII (Media Independent Interface) sublayer, PCS (Physical Coding Sublayer), PMA (Physical Medium Attachment) sublayer, PMD (Physical Medium Dependent) sublayer, and MDI sublayer.

When sending data, the PHY chip receives data from the MAC, then converts the parallel data into serial stream data, encodes the data according to the encoding rules of the physical layer, and then converts it into an analog signal to send the data out. The process is the opposite when receiving data.

Another important function of the PHY chip is to implement some of the functions of CSMA/CD. It can detect whether there is data being transmitted on the network. If there is data being transmitted, it will wait. Once it detects that the network is idle, it will wait for a random time before sending the data.

Since the PHY chip 313 can detect whether data is being transmitted on the network, that is, the PHY chip 313 can perform self-detection to obtain its own working status, thereby obtaining the link status of the network port terminal 314 in the electrical port module 300. For example, the link status on the network port terminal 314 side is disconnected, the link on the network port terminal 314 side is connected, and there is data interaction on the network port terminal 314 side.

In some embodiments, a status register is provided in the PHY chip 313, and the status register is used to store the link status of the network port terminal 314, so as to obtain the link status of the network port terminal 314 according to the value of the status register in the PHY chip 313. For example, when the first status register value 00 is stored in the status register, it can indicate that the link status of the network port side of the electrical port module 300 is disconnected; when the second status register value 01 is stored in the status register, it can indicate that the link of the network port side of the electrical port module 300 is connected; when the third status register value 02 is stored in the status register, it can indicate that there is data interaction on the network port side of the electrical port module 300.

MCU312 accesses PHY chip 313 through MDIO interface, obtains the value of status register in PHY chip 313, and MCU312 outputs corresponding level signal to PIN8 pin according to the value of status register. For example, when the value of status register in PHY chip 313 is the first status register value, it indicates that the link on the network port side of electrical port module 300 is disconnected, and MCU312 outputs the first level signal to PIN8 pin at this time; when the value of status register in PHY chip 313 is the second status register value, it indicates that the link on the network port side of electrical port module 300 is connected, and MCU312 outputs the second level signal to PIN8 pin at this time; when the value of status register in PHY chip 313 is the third status register value, it indicates that there is data interaction on the network port side of electrical port module 300, and MCU312 outputs the third level signal to PIN8 pin at this time.

The first level signal is a high level signal, the second level signal is a low level signal, the third level signal is a high-low changing pulse, and the level value of the first level signal is greater than the level value of the second level signal, and the level value of the first level signal is greater than the level value of the third level signal.

For example, the level value of the first level signal is 2 to 3.3V, the level value of the second level signal is 0 to 0.8V, and the third level signal is a pulse signal of 0 to 3.3V.

In some embodiments, the electrical port module 300 further includes a network transformer 316, which is disposed on the circuit board 310 and connects the network port terminal 314 and the PHY chip 313 through the wiring circuit on the circuit board 310. For example, the network transformer 316 is connected to the network port terminal 314 through four pairs of wiring, and the network transformer 316 is connected to the PHY chip through four pairs of MDIO interfaces, which facilitates the control and adjustment of the transmission rate of the electrical signal.

FIG7 is a circuit block diagram of an electrical port module provided in an embodiment of the present application. As shown in FIG7, after the network cable 103 is inserted into the network port terminal 314 of the electrical port module 300, the PHY chip 313 sets the value of the status register according to the link status of the network port terminal 314; the MCU 312 accesses the PHY chip 313 through the MDIO interface to obtain the value of the status register in the PHY chip 313; then the MCU 312 outputs a corresponding level signal to the PIN8 pin in the gold finger 311 according to the value of the status register, so that the host device can directly detect the level state of the PIN8 pin through its CPU to obtain the link status of the network port side of the electrical port module 300 for user identification.

Specifically, after the host device is electrically connected to the gold finger 311 of the electrical port module 300, the host device sends an instruction to change the function of the PIN8 pin to MCU312 through the I2C pin on the gold finger 311, and MCU312 changes the value of the first register according to the instruction to change the function of the PIN8 pin in the gold finger 311 and configure it as a network port status indication pin; then MCU312 accesses the PHY chip 313 through the MDIO interface to obtain the working status of the PHY chip 313; then MCU312 outputs a corresponding level signal to the PIN8 pin according to the working status of the PHY chip 313.

The host device can detect the level state of the PIN8 pin in the gold finger 311 through its CPU to obtain the link state of the network port side of the electrical port module 300 through the level state of the PIN8 pin. For example, if the host device detects that the level state of the PIN8 pin is a first level signal, it means that the link state of the network port side of the electrical port module 300 is disconnected at this time; if the host device detects that the level state of the PIN8 pin is a second level signal, it means that the link of the network port side of the electrical port module 300 is connected at this time; if the host device detects that the level state of the PIN8 pin is a high-low change pulse, it means that there is data interaction on the network port side of the electrical port module 300 at this time.

In some embodiments, in conventional network port applications, the LED light is usually turned on, off, and flashing to display its working status for user identification. Therefore, an LED light can be added to the wiring connecting MCU312 and PIN8 pin to obtain the link status of the network port side of the electrical port module 300 through the display status of the LED light.

Specifically, after the host device is electrically connected to the gold finger 311 of the electrical port module 300, the host device sends an instruction to change the function of the PIN8 pin to the MCU312 through the I2C pin in the gold finger 311, and the MCU312 changes the value in the first register according to the instruction to change the function of the PIN8 pin in the gold finger 311 and configure it as the network port status indication pin; then the MCU312 accesses the PHY chip 313 through the MDIO interface to obtain the working state of the PHY chip 313; then the MCU312 outputs a corresponding level signal to the PIN8 pin according to the working state of the PHY chip 313, and the LED light connected to the PIN8 pin is displayed according to the level state of the PIN8 pin. For example, when the host device detects that the LED light is off, it indicates that the link on the network port side of the electrical port module 300 is disconnected; when the host device detects that the LED light is on, it indicates that the link on the network port side of the electrical port module 300 is connected; when the host device detects that the LED light is flashing, it indicates that there is data interaction on the network port side of the electrical port module 300.

This application gives a new definition to the PIN8 pin in the SFP+ gold finger, defining it as a network port status indication pin. The MCU sends a corresponding level signal to the PIN8 pin according to the link status of the network port terminal, and indicates the link status of the electrical port module through the level status of the PIN8 pin; at the end user, the HOST device can easily identify the link status of the RJ45 port through the level status of the PIN8 pin, which is easy for users to identify and greatly facilitates user convenience; at the factory end, the link status of the RJ45 port can be judged according to the level status of the PIN8 pin, and it is easy to judge whether the product function is normal.

In the above embodiment, according to the requirements of the MAS-8431 protocol, the PIN8 pin in the gold finger 311 can be defined as the RX_LOS pin, which is used to transmit the RX_LOS signal to alarm whether the module has received an optical signal; the PIN8 pin can also be defined as a network port status indication pin, which has different level signals according to the link status of the network port terminal 314. The HOST device can obtain the link status of the network port side of the electrical port module 300 according to the level status of the PIN8 pin.

When the PIN8 pin is defined as the RX_LOS pin, when the level of the PIN8 pin is high, it means that no optical signal is received; when the level of the PIN8 pin is low, it means that an optical signal is received. When the PIN8 pin is defined as the network port status indication pin, when the level of the PIN8 pin is high, it means that the link on the network port side of the electrical port module 300 is disconnected; when the level of the PIN8 pin is low, it means that the link on the network port side of the electrical port module 300 is connected.

Thus, when the level of PIN8 is high, the link on the network port side of the electrical port module 300 is disconnected, and the signal cannot be received; when the level of PIN8 is low, the link on the network port side of the electrical port module 300 is connected, and the signal can be received. Therefore, PIN8 can have both the RX_LOS function and the network port status indication function, and the HOST device can obtain the link status on the network port side of the electrical module and the LOS status of the signal according to the level status of PIN8.

Specifically, a second register is provided in the MCU312, and the second register is used to store different register values, and different register values are used to indicate different functions of the PIN8 pin, so that the PIN8 pin has different function selections. The MCU312 receives a host device instruction through the I2C pin, and the host device instruction is used to indicate the function of the PIN8 pin. The MCU312 stores the corresponding register value in the second register according to the host device instruction, and the MCU312 performs the corresponding function on the PIN8 pin according to the different register values, so as to change the second register to select the function of the PIN8 pin.

When the host device needs to define a new function for the PIN8 pin, it will send the corresponding host device instructions to MCU312 through the I2C communication bus. MCU312 stores different register values, such as the third register value and the fourth register value, in the second register according to the different host device instructions received. MCU312 selects the function of the PIN8 pin according to the register value stored in the second register.

For example, when the third register value is stored in the second register, the PIN8 pin defaults to the RX_LOS pin, which is used to detect whether the received signal is lost; when the fourth register value is stored in the second register, the PIN8 pin is expanded and defined as the RX_LOS pin and the network port status indication pin, which is used to detect whether the received signal is LOS and report the link status of the network port side of the electrical port module 300.

In some embodiments, MCU312 can use 00 in the second register to correspond to the RX_LOS function of the PIN8 pin, and use 01 to correspond to the RX_LOS function and the network port status indication function of the PIN8 pin. For example, when MCU312 receives an instruction from the host device to configure the PIN8 pin as the RX-LOS pin, MCU312 sets the register value of the second register to the third register value 00, and feeds back the configuration result to the host device; when MCU312 polls or otherwise learns that the register value of the second register is 00, the PIN8 pin is the RX_LOS pin.

When MCU312 receives an instruction from the host device to configure PIN8 as the RX_LOS pin and the network port status indication pin, MCU312 sets the register value of the second register to the second register value 01, and feeds back the configuration result to the host device; when MCU312 polls or otherwise learns that the register value of the second register is 01, then PIN8 is the RX_LOS pin and the network port status indication pin.

After defining the function of the PIN8 pin according to the host device instruction, the MCU312 outputs the corresponding level signal to the PIN8 pin according to the working status of the PHY chip 313, and indicates the LOS status of the received signal and the link status of the network port terminal 314 according to the level status of the PIN8 pin. The host device demodulates and separates the level signal of the PIN8 pin to obtain the corresponding LOS signal and link status signal, that is, the host device can obtain the link status of the network port side of the electrical port module 300 and the LOS status of the received signal according to the level status of the PIN8 pin at this time.

Specifically, MCU312 accesses PHY chip 313 through MDIO interface, obtains the value of status register in PHY chip 313, and MCU312 outputs corresponding level signal to PIN8 pin according to the value of status register. For example, when the value of status register in PHY chip 313 is the first status register value, it indicates that the link on the network port side of electrical port module 300 is disconnected and the receiving signal is LOS, at this time MCU312 outputs fourth level signal to PIN8 pin; when the value of status register in PHY chip 313 is the second status register value, it indicates that the link on the network port side of electrical port module 300 is connected and the receiving signal is not LOS, at this time MCU312 outputs fifth level signal to PIN8 pin.

In some embodiments, when the PIN8 pin is the RX_LOS pin, its level state is only high level or low level; when the PIN8 pin is the network port status indication pin, the link status on the network port side has three states: disconnected, connected, and data interaction. When there is data interaction on the network port side of the electrical port module 300, it indicates that the link on the network port side is connected, and the PIN8 pin is at a low level; to indicate that there is data interaction on the network port side, that is, when the value of the status register in the PHY chip 313 is the third status register value, the MCU312 outputs a sixth level signal to the PIN8 pin.

The fourth level signal is a high level signal, the fifth level signal is a low level signal, the sixth level signal is a high-low changing pulse, and the level value of the fourth level signal is greater than the level value of the fifth level signal, and the level value of the fourth level signal is greater than the level value of the sixth level signal.

In this way, after the host device is electrically connected to the gold finger 311 of the electrical port module 300, the host device sends an instruction to change the function of the PIN8 pin to MCU312 through the I2C pin on the gold finger 311. MCU312 changes the value of the second register according to the instruction to change the function of the PIN8 pin in the gold finger 311, and configures it as the RX_LOS pin and the network port status indication pin, so that the PIN8 pin has both the function of indicating the link status of the network port side and the function of whether the received signal has LOS.

After the network cable 103 is inserted into the network port terminal 314 of the electrical port module 300, the PHY chip 313 sets the value of the status register according to the link status of the network port terminal 314; the MCU312 accesses the PHY chip 313 through the MDIO interface to obtain the value of the status register in the PHY chip 313; then the MCU312 outputs a corresponding level signal to the PIN8 pin according to the value of the status register, so that the host device can detect the level state of the PIN8 pin through its CPU to obtain the link status of the network port side of the electrical port module 300 and the LOS status of the received signal for user identification.

For example, if the host device detects that the level state of the PIN8 pin is high, the link on the network port side of the electrical port module 300 is disconnected and the receiving signal LOS; if the host device detects that the level state of the PIN8 pin is low, the link on the network port side of the electrical port module 300 is connected and the receiving signal is not LOS; if the host device detects that the level state of the PIN8 pin is a high-low changing pulse, there is data interaction on the network port side of the electrical port module 300 and the receiving signal is not LOS.

In some embodiments, in conventional network port applications, the LED light is usually turned on, off, and flashing to display its working status for user identification. Therefore, an LED light can be added to the wiring connecting MCU312 and PIN8 pin to obtain the link status of the network port side of the electrical port module 300 and the LOS status of the received signal through the display status of the LED light.

Specifically, after the host device is electrically connected to the gold finger 311 of the electrical port module 300, the host device sends an instruction to change the function of the PIN8 pin to MCU312 through the I2C pin in the gold finger 311, and MCU312 changes the value in the second register according to the instruction to change the function of the PIN8 pin in the gold finger 311, and configures it as the RX_LOS pin and the network port status indication pin; then MCU312 accesses the PHY chip 313 through the MDIO interface to obtain the working status of the PHY chip 313; then MCU312 outputs a corresponding level signal to the PIN8 pin according to the working status of the PHY chip 313, and the LED light connected to the PIN8 pin is displayed according to the level status of the PIN8 pin.

For example, when the host device detects that the LED light is off, it means that the link on the network port side of the electrical port module 300 is disconnected and the received signal LOS; when the host device detects that the LED light is on, it means that the link on the network port side of the electrical port module 300 is connected and the received signal is not LOS; when the host device detects that the LED light is flashing, it means that there is data interaction on the network port side of the electrical port module 300 and the received signal is not LOS.

This application gives a new definition to the PIN8 pin in the SFP+ gold finger, defining it as the RX_LOS pin and the network port status indication pin, so that the PIN8 pin has both the LOS function and the network port status indication function; the MCU sends a corresponding level signal to the PIN8 pin according to the link status of the network port terminal, and indicates the link status of the electrical port module and the LOS status of the received signal through the level status of the PIN8 pin; at the end user, the HOST device can easily identify the link status of the RJ45 port and the LOS status of the received signal through the level status of the PIN8 pin, which is easy for users to identify and greatly facilitates the user's convenience; at the factory end, the link status of the RJ45 port and the LOS status of the received signal can be judged according to the level status of the PIN8 pin, and it is easy to judge whether the product function is normal.

FIG8 is a schematic diagram of the structure of the lower housing in an electrical port module provided in an embodiment of the present application, and FIG9 is a schematic diagram of the assembly of the lower housing, circuit board and network port terminal in an electrical port module provided in an embodiment of the present application. As shown in FIG8 and FIG9, a fixed cavity 3021 is provided at one end of the lower housing 302, and the fixed cavity 3021 is used to accommodate the network port terminal 314; the network port terminal 314 is embedded in the fixed cavity 3021 from one end of the lower housing 302, and then fixedly restricted in the fixed cavity 3021 by the unlocking component 303.

The other end of the fixed cavity 3021 is provided with support bases 3022 on both sides, and the support bases 3022 are used to support and fix the circuit board 310, so as to facilitate the assembly and fixation of the circuit board 310. In some embodiments, the support base 3022 is provided with a support slot 3023, and the opening of the support slot 3023 faces the fixed cavity 3021.

Notches 315 are provided on both sides of one end of the circuit board 310 with the gold finger 311 , and the notches 315 correspond to the support slots 3023 on the support base 3022 , which are used to limit and fix the circuit board 310 , making it convenient to fix the circuit board 310 in the lower shell 302 .

In the electrical port module assembly process provided in the embodiment of the present application, after the MCU 312, the PHY chip 313 and the network port terminal 314 are welded and assembled to the circuit board 310, the circuit board 310 is inserted from one end of the lower housing 302 until the notch 315 on the circuit board 310 matches the support slot 3023, and then the unlocking component 303, the upper housing 301, etc. are assembled. In this way, the assembly efficiency of the electrical port module 300 is improved by facilitating the assembly of the circuit board 310 and the lower housing 302.

FIG10 is a schematic diagram of the assembly of a cover plate and an unlocker in an electrical port module provided in an embodiment of the present application, and FIG11 is a schematic diagram of the assembly of a cover plate and an unlocker in an electrical port module provided in an embodiment of the present application. As shown in FIG10 and FIG11, the upper shell 301 includes a cover plate 306, and the cover plate 306 includes a first support plate and a second support plate. The first support plate is fixedly connected to the second support plate through a connecting plate, and the connecting plate is inclined along the left and right directions, that is, the top surface of the first support plate protrudes from the top surface of the second support plate. A through hole is provided on the connecting plate, and the inner wall of the first support plate is connected to the top surface of the second support plate through the through hole.

A positioning protrusion 3061 is arranged on the top surface of the second support plate. The positioning protrusion 3061 is a wedge-shaped protrusion on the top surface of the second support plate and is a non-active part. The positioning protrusion is arranged opposite to the spring lock hole on the cage of the host device. When the spring lock hole cover is buckled on the positioning protrusion 3061, the electrical port module 300 and the cage are locked with each other and are not easy to be unlocked.

The unlocking component 303 includes a handle 3031 and an unlocker 3032. The unlocker 3032 is arranged on the inner side of the cover plate 306. One end of the unlocker 3032 passes through the through hole and is located on the top surface of the second support plate. The unlocker 3032 can move left and right on the inner side of the cover plate 306. When the unlocker 3032 moves to the right, the unlocker 3032 can push open the spring sheet on the cage, so that the cage is separated from the positioning protrusion 3061, thereby realizing the unlocking of the electrical port module 300 and the cage.

A first wedge block 30320 and a second wedge block 30321 are provided at one end of the unlocker 3032. The first wedge block 30320 and the second wedge block 30321 extend to the right from the right side of the unlocker 3032. From left to right, the height dimensions of the first wedge block 30320 and the second wedge block 30321 in the up and down directions gradually decrease, and there is a gap between the first wedge block 30320 and the second wedge block 30321, and the gap is arranged opposite to the positioning protrusion 3061.

In some embodiments, the distance between the first wedge block 30320 and the second wedge block 30321 is greater than the locking surface of the positioning protrusion 3061, that is, greater than the maximum width of the positioning protrusion 3061, so that when the unlocker 3032 moves to the right to the positioning protrusion 3061, the first wedge block 30320 and the second wedge block 30321 can extend to the right over the positioning protrusion 3061, and use the inclined surfaces on the upper sides of the first wedge block 30320 and the second wedge block 30321 to push the spring lock hole on the cage away from the positioning protrusion 3061, so that the cage is disengaged from the positioning protrusion 3061, thereby completing the unlocking when the unlocker 3032 slides to the right.

The unlocking component 303 also includes a return spring 3033, one end of which is connected to the cover plate 306, and the other end of which is connected to the unlocking device 3032, so that the return spring 3033 is not easy to loosen. When the unlocking component 303 is in the unlocking state, the unlocking device 3032 can automatically rebound under the action of the return spring 3033.

FIG12 is a schematic diagram of the assembly of the lower housing, circuit board, cover plate and unlocker in an electrical port module provided in an embodiment of the present application, and FIG13 is a schematic diagram of the assembly of the lower housing, circuit board, cover plate, unlocker and handle in an electrical port module provided in an embodiment of the present application. As shown in FIG12 and FIG13, after the circuit board 310 and the network port terminal 314 are assembled together, they are assembled to the lower housing 302 in the assembly direction (from left to right), and then the cover plate 306 and the unlocker 3032 are assembled to the lower housing 302, and then the handle 3031 is assembled to the fixed cavity 3021 of the lower housing 302, so that the handle 3031 can be rotated on the left side of the fixed cavity 3021, and the force-applying part of the handle 3031 is in close contact with the force-bearing part of the unlocker 3032, and finally the cover plate 306 is fixedly connected to the lower housing 302 by locking screws.

When the handle 3031 is in a vertical state, the electrical port module 300 is in a locked state, the return spring 3033 is in a compressed state, and the force-bearing part of the unlocker 3032 presses against the unlocking surface of the handle 3031, which can ensure that the unlocker 3032 and the handle 3031 are not loose, and the distance between the protruding side of the unlocker 3032 and the positioning protrusion 3061 meets the protocol requirements.

When the user wants to unlock the electrical port module 300, he grabs the handle 3031 and rotates the handle 3031 from bottom to top. The unlocking surface of the handle 3031 presses against the force-bearing part of the unlocker 3032, driving the unlocker 3032 to move to the right. When the handle 3031 is in a horizontal state, one end of the unlocker 3032 moves to the right to the through hole, and the first wedge block 30320 and the second wedge block 30321 move to the right to the positioning protrusion 3061. The first wedge block 30320 and the second wedge block 30321 push open the spring lock hole on the cage, so that the cage is separated from the positioning protrusion 3061, thereby unlocking the electrical port module 300. When the electrical port module 300 is in the unlocked state, the handle 3031 is pulled outward at this time to smoothly pull the electrical port module 300 out of the cage.

When the user releases the handle 3031 , since the reset spring 3033 is in a stretched state, the unlocker 3032 moves to the left under the reset force of the reset spring 3033 , and the unlocker 3032 drives the handle 3031 to rotate from top to bottom, so that the handle 3031 is automatically reset.

In the electrical port module provided in the embodiment of the present application, after the MCU, PHY chip, network port terminal, etc. are welded and assembled on the circuit board 310, the circuit board is inserted from one end of the lower shell until the notch on the circuit board matches the supporting slot on the lower shell; then the unlocker is assembled to the cover plate, and the unlocker can move left and right on the cover plate; then the unlocker and the cover plate are assembled to the lower shell; then the handle is installed on the lower shell, so that the handle can be rotated on the lower shell, and when the handle rotates, it can drive the unlocker to move left and right on the cover plate to realize the assembly of the electrical port module.

After the electrical port module is assembled, the electrical port module is inserted into the HOST device to realize the connection between the electrical port module and the HOST device; then the network cable is inserted into the network port terminal of the electrical port module, and the network port terminal sends its link status to the status register in the PHY chip, and the corresponding status register value is set in the status register according to the link status of the network port terminal; then the host device sends an instruction to change the function of the PIN8 pin to the MCU through the I2C pin in the gold finger, and the MCU changes the value in the first register according to the instruction to change the function of the PIN8 pin, and gives the PIN8 pin in the SFP+ gold finger a new function, which is defined as the network port status indication pin; then the MCU accesses the PHY chip through the MDIO interface, and obtains the working status of the PHY chip according to the status register value stored in the status register; then the MCU outputs a corresponding level signal to the PIN8 pin according to the working status of the PHY chip, which is used to indicate the link status of the RJ45 port; then the HOST device can detect the level status of the PIN8 pin in the gold finger through its CPU, so as to obtain the link status of the network port side of the electrical port module through the level status of the PIN8 pin, so as to facilitate user identification. An LED light may also be added to the wiring connecting the MCU and the PIN8 pin, and the link status of the network port side of the electrical port module 300 may be obtained through the display status of the LED light.

When the level signal of PIN8 is high or the LED is off, it indicates that the link status on the network port side of the electrical port module is disconnected; when the level signal of PIN8 is low or the LED is on, it indicates that the link on the network port side of the electrical port module is connected; when the level signal of PIN8 is a high-low changing pulse or the LED flashes, it indicates that there is data interaction on the network port side of the electrical port module.

In this way, at the factory end, the link status of the RJ45 port can be judged according to the level status of the PIN8 pin, and whether the product function is normal can be easily judged; at the end user, the HOST device can easily obtain and display the link status of the RJ45 port of the electrical port module according to the level status of the PIN8 pin, which is easy for users to identify and greatly facilitates user convenience.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. An electrical port module, comprising: A circuit board, with a gold finger disposed at the end thereof, wherein the gold finger includes an I2C pin and a multiplexed pin; A network port terminal, electrically connected to the circuit board, and used for signal transmission via a network cable; A PHY chip, arranged on the circuit board, comprising a status register, wherein the status register is used to store a status register value corresponding to the link status of the network port terminal; MCU, arranged on the circuit board, one end of which is connected to the I2C pin and the multiplexing pin, and receives host device instructions through the I2C pin; the other end of which is connected to the PHY chip, and is used to access and obtain the status register value, and send a corresponding level signal to the multiplexing pin according to the status register value; Among them, the MCU includes a first register, which is used to store a register value corresponding to the host device instruction, and the MCU sets the corresponding function of the multiplexed pin according to the register value; when the function of the multiplexed pin is the network port status indication function, the link status of the network port terminal is obtained according to the level signal of the multiplexed pin. 2. The electrical port module according to claim 1 is characterized in that the first register stores a first register value or a second register value, the MCU configures the multiplexed pin as the RX_LOS pin according to the first register value, and the MCU configures the multiplexed pin as the network port status indication pin according to the second register value. 3. The electrical port module according to claim 1 is characterized in that the status register stores a first status register value, a second status register value or a third status register value, the first status register value is used to indicate that the link on the network port side of the electrical port module is disconnected, the second status register value is used to indicate that the link on the network port side of the electrical port module is connected, and the third status register value is used to indicate that there is data interaction on the network port side of the electrical port module. 4. The electrical port module according to claim 3, characterized in that when the status register stores the first status register value, the MCU sends a first level signal to the multiplexing pin according to the first status register value; When the status register stores the second status register value, the MCU sends a second level signal to the multiplexing pin according to the second status register value; When the status register stores the third status register value, the MCU sends a third level signal to the multiplexing pin according to the third status register value. 5. The electrical port module according to claim 4, characterized in that the first level signal is a high level signal, the second level signal is a low level signal, and the third level signal is a high-low changing pulse; The level value of the first level signal is greater than the level value of the second level signal, and the level value of the first level signal is greater than the level value of the third level signal. 6. The electrical port module according to claim 3 is characterized in that an LED light is arranged on the wiring connecting the MCU and the multiplexed pin, and the MCU controls the display state of the LED light according to the status register value stored in the status register, so as to obtain the link state of the network port side of the electrical port module according to the display state of the LED light. 7. The electrical port module according to claim 6, characterized in that when the status register stores the first status register value, the MCU controls the display state of the LED light to be the first state according to the first status register value; When the state register stores the second state register value, the MCU controls the display state of the LED lamp to be the second state according to the second state register value; When the status register stores the third status register value, the MCU controls the display state of the LED lamp to be the third state according to the third status register value. 8 . The electrical port module according to claim 7 , wherein the first state of the LED light is off, the second state of the LED light is on, and the third state of the LED light is flashing. 9 . The electrical port module according to claim 2 , wherein the first register value is 00 and the second register value is 01. 10. The electrical port module according to claim 1, characterized in that the multiplexed pin is a PIN8 pin.