CN220154916U - Circuit with USB port expanding multiple communication interfaces - Google Patents

Circuit with USB port expanding multiple communication interfaces Download PDF

Info

Publication number
CN220154916U
CN220154916U CN202321444237.XU CN202321444237U CN220154916U CN 220154916 U CN220154916 U CN 220154916U CN 202321444237 U CN202321444237 U CN 202321444237U CN 220154916 U CN220154916 U CN 220154916U
Authority
CN
China
Prior art keywords
circuit
usb
electrically connected
interface
hub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202321444237.XU
Other languages
Chinese (zh)
Inventor
闫鹏
李厚谕
吴刚
金鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Hanweizhe Safety Equipment Co ltd
Original Assignee
Shenzhen Hanweizhe Safety Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Hanweizhe Safety Equipment Co ltd filed Critical Shenzhen Hanweizhe Safety Equipment Co ltd
Priority to CN202321444237.XU priority Critical patent/CN220154916U/en
Application granted granted Critical
Publication of CN220154916U publication Critical patent/CN220154916U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Information Transfer Systems (AREA)

Abstract

The utility model discloses a circuit for expanding multiple communication interfaces of a USB port, which comprises: the USB interface input circuit is electrically connected with the HUB expansion circuit, and the HUB expansion circuit is electrically connected with at least two USB interface output circuits; the HUB expansion circuit is electrically connected with the USB-to-RS 232 circuit, and the USB-to-RS 232 circuit is electrically connected with the RS232 output interface circuit; the HUB expansion circuit is electrically connected with the USB-to-RJ 45 circuit, the USB-to-RJ 45 circuit is electrically connected with the network signal filter circuit, and the network signal filter circuit is electrically connected with the RJ45 output interface circuit. The usb input end is expanded into a plurality of usb output ends, rj45 network port ends and rs232 serial port ends, so that the USB interface is convenient to use.

Description

Circuit with USB port expanding multiple communication interfaces
Technical Field
The utility model relates to the technical field of communication interface expansion circuits, in particular to a circuit with multiple communication interfaces expanded by USB ports.
Background
In developing and testing a multi-function project (e.g., a production line), it is often necessary to communicate with various control, execution portions of the apparatus. In the case of a complex device as a whole, different communication interface terminals, that is, different switching ports, need to be prepared in advance, and the pc/notebook itself as a test host is limited in interface.
The existing transfer module is generally an independent USB-to-RJ 45 interface, an independent USB-to-RS 232 interface and an independent USB-to-USB expansion multi-USB interface, so that the rapid expansion of a plurality of interfaces and a plurality of interfaces cannot be satisfied, the test and the deployment of equipment can be conveniently carried out,
accordingly, a need exists for a circuit for expanding a multi-communication interface for a USB port that addresses one or more of the above issues.
Disclosure of Invention
In order to solve one or more problems in the prior art, the utility model provides a circuit for expanding multiple communication interfaces through a USB port. The utility model adopts the technical proposal for solving the problems that: a circuit for expanding multiple communication interfaces at a USB port, comprising: the USB interface input circuit is electrically connected with the HUB expansion circuit, and the HUB expansion circuit is electrically connected with at least two USB interface output circuits;
the HUB expansion circuit is electrically connected with the USB-to-RS 232 circuit, and the USB-to-RS 232 circuit is electrically connected with the RS232 output interface circuit;
the HUB expansion circuit is electrically connected with the USB-to-RJ 45 circuit, the USB-to-RJ 45 circuit is electrically connected with the network signal filter circuit, and the network signal filter circuit is electrically connected with the RJ45 output interface circuit.
In some embodiments, the HUB expansion circuit comprises: the hub master control chip and the matched peripheral circuit.
In some embodiments, the USB to RS232 circuit comprises: the USB-to-serial port main control chip and a matched peripheral circuit.
In some embodiments, the USB to RJ45 circuit comprises: a USB network chip and a matched peripheral circuit.
The beneficial value obtained by the utility model is as follows: according to the utility model, the circuits are electrically connected together to form the USB expansion module, so that the expansion of the USB input end into a plurality of USB output ends, rj45 network port ends and rs232 serial port ends is realized. When the system is used, a single expansion module can realize the communication requirements of various formats in the whole project, so that the number of usb interfaces used by an upper computer end, the space occupied by modules and circuits are saved, and the system is very convenient to connect and use. The practical value of the utility model is greatly improved.
Drawings
FIG. 1 is a schematic block diagram of the present utility model;
fig. 2 is a schematic diagram of the present utility model.
[ reference numerals ]
1- & gt USB interface input circuit 10- & gt HUB expansion circuit
11 & ltUSB interface output circuit 12 & ltUSB interface output circuit
2 RS232 output interface circuit 20 USB to RS232 circuit
3 RJ45 output interface circuit 30 network signal filter circuit
4.USB to RJ45 circuit.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model briefly described above will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein without departing from the spirit or scope of the utility model as defined in the following claims.
As shown in fig. 1-2, the utility model discloses a circuit for expanding multiple communication interfaces of a USB port, which comprises: the USB interface input circuit 1, the said USB interface input circuit 1 is connected with HUB expanded circuit 10 electrically, the said HUB expanded circuit 10 is connected with at least two USB interface output circuits 11, 12 electrically;
the HUB expansion circuit 10 is electrically connected with the USB-to-RS 232 circuit 20, and the USB-to-RS 232 circuit 20 is electrically connected with the RS232 output interface circuit 2;
the HUB expansion circuit 10 is electrically connected with the USB-to-RJ 45 circuit 4, the USB-to-RJ 45 circuit 4 is electrically connected with the network signal filter circuit 30, and the network signal filter circuit 30 is electrically connected with the RJ45 output interface circuit 3.
As shown in fig. 2, the HUB extender circuit 10 includes: the hub main control chip and the matched peripheral circuit are U1 chip (model SL2.1A); the USB to RS232 circuit 20 includes: the USB-to-serial port main control chip and a matched peripheral circuit, namely a U3 chip (model CH 341T) in the figure; the USB-to-RJ 45 circuit 4 includes: a USB network chip and a matched peripheral circuit, i.e., a U2 chip (model RTL 8152B) in the figure. The corresponding USB data conversion function is realized through the chip and the peripheral circuits thereof, and the data is transmitted to the corresponding port.
In summary, the USB expansion module is formed by electrically connecting the circuits, so that the expansion of the USB input end into a plurality of USB output ends, rj45 network port ends and rs232 serial port ends is realized. When the system is used, a single expansion module can realize the communication requirements of various formats in the whole project, so that the number of usb interfaces used by an upper computer end, the space occupied by modules and circuits are saved, and the system is very convenient to connect and use.
The foregoing examples are merely representative of one or more embodiments of the present utility model and are described in more detail and are not to be construed as limiting the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims (4)

1. The circuit for expanding the multiple communication interfaces of the USB port is characterized by comprising a USB interface input circuit, wherein the USB interface input circuit is electrically connected with a HUB (universal serial bus) expansion circuit, and the HUB expansion circuit is electrically connected with at least two USB interface output circuits;
the HUB expansion circuit is electrically connected with the USB-to-RS 232 circuit, and the USB-to-RS 232 circuit is electrically connected with the RS232 output interface circuit;
the HUB expansion circuit is electrically connected with the USB-to-RJ 45 circuit, the USB-to-RJ 45 circuit is electrically connected with the network signal filter circuit, and the network signal filter circuit is electrically connected with the RJ45 output interface circuit.
2. The circuit for expanding a multi-communication interface for a USB port according to claim 1, wherein the HUB expansion circuit comprises: the hub master control chip and the matched peripheral circuit.
3. The circuit for expanding a multi-communication interface with a USB port according to claim 1, wherein the USB-to-RS 232 circuit comprises: the USB-to-serial port main control chip and a matched peripheral circuit.
4. The circuit for expanding a multi-communication interface for a USB port according to claim 1, wherein the USB-to-RJ 45 circuit comprises: a USB network chip and a matched peripheral circuit.
CN202321444237.XU 2023-06-07 2023-06-07 Circuit with USB port expanding multiple communication interfaces Active CN220154916U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321444237.XU CN220154916U (en) 2023-06-07 2023-06-07 Circuit with USB port expanding multiple communication interfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321444237.XU CN220154916U (en) 2023-06-07 2023-06-07 Circuit with USB port expanding multiple communication interfaces

Publications (1)

Publication Number Publication Date
CN220154916U true CN220154916U (en) 2023-12-08

Family

ID=89007469

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321444237.XU Active CN220154916U (en) 2023-06-07 2023-06-07 Circuit with USB port expanding multiple communication interfaces

Country Status (1)

Country Link
CN (1) CN220154916U (en)

Similar Documents

Publication Publication Date Title
CN108595356B (en) Hard disk backboard compatible with RSSD hard disk and NVMe hard disk and method
CN114721992B (en) Server and server management system thereof
CN105335548A (en) MCU simulation method for ICE
CN220154916U (en) Circuit with USB port expanding multiple communication interfaces
CN202406141U (en) Fire wall
CN102081455B (en) Multicomputer switcher and adapter thereof
CN104484305B (en) Server debugging analysis interface device
CN216772401U (en) Main equipment main control function implementation system
CN116165516A (en) Parallel verification system for silicon back chip and chip
CN213581897U (en) Novel display control calculation module
CN213582152U (en) PCIE signal bit width automatic switching device of desktop and server system
CN114116584A (en) Interface board card, user equipment and CPU test system
CN204189089U (en) A kind of server
CN209132718U (en) A kind of power supply jig of standard PCIE subcard and OCP subcard
CN117407347B (en) PCIe switching chip, control method thereof and electronic equipment
CN218332569U (en) Multi-carrier data resource conversion device
CN216310776U (en) Interface board card, user equipment and CPU test system
CN112882424B (en) Power system data acquisition system and method
CN218037988U (en) Many serial ports control system based on godson 2K
CN219143385U (en) SWITCH chip expansion main board
CN213138341U (en) Chalk box integrated with universal intelligent equipment interface
CN218647020U (en) Test circuit, electronic equipment and test system
CN219122684U (en) USB port testing device
CN213094226U (en) CAN communication device based on CPCI bus
CN210627183U (en) Electronic key testing device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant