CN106654769A - USB-to-RS485 serial port micro integration connector - Google Patents
USB-to-RS485 serial port micro integration connector Download PDFInfo
- Publication number
- CN106654769A CN106654769A CN201611252354.0A CN201611252354A CN106654769A CN 106654769 A CN106654769 A CN 106654769A CN 201611252354 A CN201611252354 A CN 201611252354A CN 106654769 A CN106654769 A CN 106654769A
- Authority
- CN
- China
- Prior art keywords
- usb
- connector
- turns
- serial ports
- chips
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
- H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
Abstract
The invention discloses a USB-to-RS485 serial port micro integration connector, relates to the field of remote serial port signal communication interfaces, and particular relates to the design technique of a high-integration density communication interface and a connector thereof. The USB-to-RS485 serial port micro integration connector comprises a USB interface, a USB-to-RS485 serial port conversion printed board, a cable and a four-core connector interface. The design of converting a USB signal to a serial port signal is integrated on a USB connector end, and the output is a four-core plugging manner, so that the whole connector is more compact in structure, has a very small physical volume and a more flexible output interface, and can realize the conversion from USB signals to the RS485 signals, so that the users can design and apply electronic equipment more conveniently.
Description
Technical field
The invention belongs to remote serial port signal communication interface field, the communication interface and its company more particularly, to high integration
Connect the designing technique of device.
Background technology
The common serial communication mode of electronic equipment has the standards such as RS485, in order to be programmed to it and debug,
Need that electronic equipment is connected on computer, and the communication interface that computer is used is mostly USB USBs,
So between electronic equipment and computer, needing using the connection that can mutually change usb signal and RS485 serial signals
Device connects to realize communication.
Existing USB turns serial port connector and uses by conventional USB interface, cable, interface and be placed on interface
USB turn serial ports circuit board composition, its interface section mostly is DB9 or binding post mode.
The subject matter of existing product be Interface Terminal in-convenience in use, if the form of binding post, need to fix；
If the form of DB9, must be requested that the interface of the other end is also DB9.And in actual use, physical interface user is certainly
Oneself customizes, and particularly in the case where equipment volume requirement is less and less, the size of physical interface diminishes, and interface shape is different,
This just highlights the inconvenience that existing product is used.
The miniature integrated connector of RS485 serial ports is turned using the USB of the present invention, the change-over circuit that USB turns rs 232 serial interface signal is set
Miniature printed boards are counted into, USB interface end is positioned over, while the output port of connector only has 4 leads, the company of efficiently reducing
The physical size of device is connect, allows the user can neatly selection port mode according to the design of oneself.
The content of the invention
The invention provides a kind of USB turns the miniature integrated connector of RS485 serial ports, the shortcoming of prior art presence is overcome
And deficiency, realize：(1) miniaturization of connector volume is realized, it is user-friendly；(2) AUI part is 4 cores
Connector interface mode, with considerable flexibility.
The present invention the technical scheme for being adopted be：A kind of USB turns the miniature integrated connector of RS485 serial ports, in the thing of USB
In reason interface basis, the conversion circuit part that usb signal turns rs 232 serial interface signal is designed to into miniature printed boards, installed in the company of USB
Connect on device, and the output signal line of serial ports directly leads out, and provides the user the connector interface mode of 4 cores.Its implementation bag
Include：USB interface, USB turn the conversion printed board of RS485 serial ports, cable and RS485 connector interfaces.Described USB interface is adopted
USB-A types public affairs mouth, including four stitch (VCC, DM, DP, GND)；Described USB turns the integrated printed board of RS485 serial ports, including
Usb signal conversion UART signal chip, UART signal turn RS485 signal chips, respectively using FT232RL chips, SN75176 cores
Piece is realized；Described connector interface adopts 4 core connector interfaces.
Beneficial effects of the present invention：
(1) USB is turned the circuit design of rs 232 serial interface signal into miniature printed boards, the interface end of USB is placed on, with compared with
Little physical size, is user-friendly to；
(2) because lead-out terminal is 4 core lead modes, can directly be plugged on brassboard carries out serial communication, also can be straight
Connected user-defined form of terminal and realized that USB was changed to the signal of serial ports, interface was with compatibility well and flexibly
Property.
Description of the drawings
Fig. 1 is the design principle figure of the present invention.
Fig. 2 turns RS485 serial ports integrated connector circuits for USB.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As shown in figure 1, the present invention is by USB terminals, the integrated conversion printed board comprising IC1 and IC2 chips, cable and 4 cores
Connector is constituted, and wherein USB terminals are the standard USB-A type male interface for meeting USB2.0 agreements, the USB terminals and calculating
The USB of machine is joined directly together；USB in dashed box designed by the present invention turns the integrated conversion printed board of serial ports, described integrated turn
Printed board is changed on USB terminals, comprising responsible usb signal the IC1 of UART signal is converted into, is responsible for turning UART signal
Change the IC2 of RS485 signals into；The IC1 selects FT232RL chips, the IC2 to select SN75176 chips；RS485 serials are believed
Number interface adopts the core connector H2544-04 of Du Pont 4.
If Fig. 2 is the circuit theory diagrams of the present invention, DM and DP signals connect respectively FT232RL cores in described USB terminals
USBDM the and USBDP pins of piece, by RXD the and TXD pins of FT232RL chips respectively with R the and D pin phases of SN75176 chips
Connection, by SN75176'sIt is connected with DE while being connected with the CBUS2 in FT232RL.
The USB of computer is inserted at the USB ends of connector, the connection of 4 core connectors needs the electronic equipment of communication.Even
Connect when will work as computer and need to electronic equipment sending signal after device work, DM the and DP signals in the incoming USB of computer pass through
Chip FT232RL is converted to UART signal, and is placed in high level by signal CBUS2 is enabled, and makes chip SN75176 be placed in transmission
Working condition, by UART signal RS485 signals are converted to, then by the incoming electronic equipment for needing to communicate of 4 core connectors.Meter
Calculation machine sending signal enables signal CBUS2 and is placed in low level after terminating, and SN75176 works in reception state, works as electronic equipment
When needing to computer sending signal, the RS485 signals that electronic equipment sends are converted to UART signal by chip SN75176,
Usb signal is converted into through chip FT232RL and is sent to computer, realize the two-way communication of computer and electronic equipment.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and optimal enforcement effect
Really, can according to actual needs increase and decrease non-essential technical characteristic to meet the demand of different situations.It is all without departing from skill of the present invention
The equivalent implementations or change that spirit is made should be included within the scope of the present invention.
Claims (6)
1.USB turns the miniature integrated connector of RS485 serial ports, it is characterised in that include：USB terminals, comprising IC1 and IC2 chips
Integrated conversion printed board, cable and 4 core connectors；The USB terminals are USB-A type male interfaces；The integrated conversion is printed
Plate is arranged on USB terminals, including responsible be converted into the IC1 of UART signal, be responsible for being converted into UART signal usb signal
The IC2 of RS485 signals；The 4 core connector adopts 4 core connectors.
2. USB according to claim 1 turns the miniature integrated connector of RS485 serial ports, it is characterised in that the USB terminals
Meet USB2.0 consensus standards.
3. USB according to claim 1 turns the miniature integrated connector of RS485 serial ports, it is characterised in that the IC1 is adopted
FT232RL chips are realized.
4. USB according to claim 3 turns the miniature integrated connector of RS485 serial ports, it is characterised in that the IC2 is adopted
SN75176 chips are realized.
5. USB according to claim 4 turns the miniature integrated connector of RS485 serial ports, it is characterised in that the USB terminals
Middle DM and DP signals connect respectively USBDM the and USBDP pins of FT232RL chips；The RXD and TXD of the FT232RL chips draws
Pin is connected respectively with R the and D pins of SN75176 chips；CBUS2 in the FT232RL is respectively with SN75176'sWith
DE is connected.
6. USB according to claim 1 turns the miniature integrated connector of RS485 serial ports, it is characterised in that USB terminals make
Used time inserts the USB of computer；The 4 core connector connects when in use the electronic equipment of needs communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252354.0A CN106654769A (en) | 2016-12-30 | 2016-12-30 | USB-to-RS485 serial port micro integration connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252354.0A CN106654769A (en) | 2016-12-30 | 2016-12-30 | USB-to-RS485 serial port micro integration connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654769A true CN106654769A (en) | 2017-05-10 |
Family
ID=58835606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611252354.0A Pending CN106654769A (en) | 2016-12-30 | 2016-12-30 | USB-to-RS485 serial port micro integration connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106654769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888585A (en) * | 2017-11-09 | 2018-04-06 | 山东船舶技术研究院 | Multiplexing isolation full-duplex communication module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2684259Y (en) * | 2004-03-16 | 2005-03-09 | 兰州兰大小精灵新技术有限责任公司 | High-speed signal conversion equipment based on computer USB interface |
| CN101916355A (en) * | 2010-08-31 | 2010-12-15 | 中国地质大学（武汉） | Wireless sensor network technology-based multi-standard RFID identification equipment |
| CN204189160U (en) * | 2014-09-29 | 2015-03-04 | 山东厚德测控技术有限公司 | A kind of USB serial converter |
| CN206401674U (en) * | 2016-12-30 | 2017-08-11 | 江苏大学 | USB turns the miniature integrated connector of RS485 serial ports |
-
2016
- 2016-12-30 CN CN201611252354.0A patent/CN106654769A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2684259Y (en) * | 2004-03-16 | 2005-03-09 | 兰州兰大小精灵新技术有限责任公司 | High-speed signal conversion equipment based on computer USB interface |
| CN101916355A (en) * | 2010-08-31 | 2010-12-15 | 中国地质大学（武汉） | Wireless sensor network technology-based multi-standard RFID identification equipment |
| CN204189160U (en) * | 2014-09-29 | 2015-03-04 | 山东厚德测控技术有限公司 | A kind of USB serial converter |
| CN206401674U (en) * | 2016-12-30 | 2017-08-11 | 江苏大学 | USB turns the miniature integrated connector of RS485 serial ports |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888585A (en) * | 2017-11-09 | 2018-04-06 | 山东船舶技术研究院 | Multiplexing isolation full-duplex communication module |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |