CN103984661B - A kind of Multifunctional debugging interface switching device - Google Patents
A kind of Multifunctional debugging interface switching device Download PDFInfo
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- CN103984661B CN103984661B CN201410233053.8A CN201410233053A CN103984661B CN 103984661 B CN103984661 B CN 103984661B CN 201410233053 A CN201410233053 A CN 201410233053A CN 103984661 B CN103984661 B CN 103984661B
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Abstract
A kind of Multifunctional debugging interface switching device, including parallel port modular converter, RS232 modular converter, RS485 modular converter, data control block, mode selection module, cable insulation displacement connector and USB joint；Described cable insulation displacement connector includes parallel port terminal and serial ports terminal, and mode selection module includes toggle switch and decoder；Described data control block includes interconnective control chip and USBHUB chip；Described USB joint is connected with USBHUB chip；The conversion chip of described parallel port modular converter, the conversion chip of RS232 modular converter, the conversion chip of RS485 modular converter and decoder are connected with control chip respectively, and control chip selects to turn on corresponding interface modes according to the dial-up of toggle switch.Outward appearance of the present invention is compact, carries easy to use, can realize the conversion of serial ports and parallel port by toggle switch, meets the demand of different debugging interfaces, will not lead to not debug because of tape error debugging line in commissioning device, without two or three debugging line of band.
Description
Technical field
The present invention relates to a kind of interface switching device, specifically a kind of Multifunctional debugging interface switching device.
Background technology
With the fast development of electronic computer technology, application in productive life for the various electronic equipments is more and more wider
General, particularly in terms of automated communication, each system all relies on electronic equipment and realizes.The equipment debugging of different manufacturers design
Interface is different, mostly serial ports or parallel port, and this needs to connect using different debugging cables.But serial ports, parallel port exist many
Plant interface type, the situation of multiple line sequence definition, cannot ensure general between different manufacturers debugging line.At present in equipment debugging
Mainly use notebook computer, update with computer equipment, all little standard configuration string of computer of notebook or even desktop computer
Mouth, parallel port, typically turn USB line by serial ports, parallel port and are changed, and connect computer using USB interface it is necessary to use corresponding
Serial ports or parallel port interface are debugged line with producer and are connected, and current serial ports, parallel port turn the finished product that USB cable is all fixed interface mode
Line, just cannot solve once defining unmatched problem in Commissioning field discovery debugging cable and producer.
Content of the invention
For the shortcoming overcoming above-mentioned prior art to exist, it is an object of the invention to provide one kind can be carried out as needed
The Multifunctional debugging interface switching device of interface conversion.
In order to solve the above problems, the present invention employs the following technical solutions：A kind of Multifunctional debugging interface switching device, its
It is characterised by, including parallel port modular converter, RS232 modular converter, RS485 modular converter, data control block, model selection mould
Block, cable insulation displacement connector and USB joint, described parallel port modular converter, RS232 modular converter and RS485 modular converter all include connecing
Mouth chip and conversion chip；Described cable insulation displacement connector includes 50 terminals, and wherein 25 terminals are parallel port terminal, with parallel port conversion
The interface chip of module connects, and remaining 25 terminals are serial ports terminal, respectively with the interface chip of RS232 modular converter and
The interface chip of RS485 modular converter connects；Described mode selection module includes toggle switch and decoder；Described Data Control
Module includes interconnective data and selects chip and USB HUB chip；Described USB joint is connected with USB HUB chip；Described
The conversion chip of parallel port modular converter, the conversion chip of RS232 modular converter, the conversion chip of RS485 modular converter and decoding
Device selects chip to be connected with data respectively, and data selects chip to select to turn on corresponding interface mould according to the dial-up of toggle switch
Formula.
Further, described parallel port modular converter, RS232 modular converter, RS485 modular converter, data control block, mould
Formula selecting module and cable insulation displacement connector are arranged in a box body, and described toggle switch is arranged on box surface, described cable clamp
Connect device and be arranged on box body end, 50 terminals of cable insulation displacement connector divide two rows to arrange, often arrange 25.
Further, described cable insulation displacement connector includes loose ends push pedal and wire clamp, and described loose ends push pedal includes plate body and sets
Put the shifting block on plate body；Described wire clamp is elastic sheet metal, and wire clamp includes bare terminal end, stays between bare terminal end and wire clamp right side wall
There is gap, cable connector is blocked by bare terminal end using metallic elastic；It is vertically disposed with two row's terminal grooves in the end of described box body,
One wire clamp is set in each terminal groove, in leading to that the upper and lower surface of described box body is respectively provided with that a row communicates with terminal groove
Hole.
Further, described bare terminal end is provided with anti-skid rack.
Further, described bare terminal end and the angle of wire clamp right side wall are 5 degree of -15 degree.
Further, described parallel port terminal is white, and RS232 serial ports terminal is black, and RS485 serial ports terminal is blueness.
Preferably, described toggle switch is DIP flat pattern toggle switch.
Preferably, described USB HUB chip is GL850G chip.
Preferably, decoder is 74LS139 chip.
The invention has the beneficial effects as follows：
1st, it includes box body end and USB plug end, and outward appearance is compact, easy to carry；
2nd, it can realize the conversion of serial ports and parallel port by toggle switch, can meet the need of different manufacturers difference debugging interface
Ask, will not lead to not debug because of tape error debugging line in commissioning device, without two or three debugging line of band.
3rd, its cable insulation displacement connector adopts wire clamp and loose ends push pedal, and cable connector is very convenient when fixing, saves big
The time of amount fixed cable joint.
Brief description
The present invention is described further with reference to the accompanying drawings and examples：
Fig. 1 is the surface structure schematic diagram of first embodiment of the invention；
Fig. 2 is the theory diagram of the present invention；
Fig. 3 is the circuit diagram of the present invention；
Fig. 4 is the box body side view of first embodiment of the invention；
Fig. 5 is the part-structure schematic diagram cut open along line A-A in Fig. 4；
Fig. 6 is the part-structure view in Fig. 4 along B direction；
Fig. 7 is loose ends plate pushing structure schematic diagram of the present invention；
Fig. 8 is the cable clamp structure schematic diagram of the present invention；
Fig. 9 is the surface structure schematic diagram of second embodiment of the invention.
In figure, 1 box body, 2 USB plug, 3 data wires, 5 toggle switch, 11 terminal grooves, 12 screwed holes, 41 loose ends push pedals,
42 wire clamps, 411 plate bodys, 412 shifting blocks, 413 connecting rods, 421 bare terminal ends, 422 wire clamp right side walls, 4211 anti-skid racks, 6 cables connect
Head.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is explained in detail：
As shown in figure 1, the surface structure of the first embodiment of the present invention includes box body 1, USB plug 2 data line 3, and
Mouth modular converter, RS232 modular converter, RS485 modular converter, data control block, mode selection module and cable insulation displacement connector
It is arranged in box body 1, toggle switch 5 is arranged on box surface, toggle switch is that the DIP flat pattern dial-up including three dial-up keys is opened
Close.Cable insulation displacement connector is arranged on box body end, and 50 terminals of cable insulation displacement connector divide two rows to arrange, often arrange 25, in order to
More easily discriminate between, 25 terminals of upper row are parallel port terminal, and they are white；25 terminals of lower row are used for serial ports, wherein 1-9
Number terminal is RS232 serial ports terminal, and color is black, and 16-25 terminal is RS485 serial ports terminal, and color is blueness.
As shown in Fig. 4-Fig. 8,50 terminals of cable insulation displacement connector facilitate wiring for convenience, employ one in the present embodiment
Plant cable insulation displacement connector, it includes loose ends push pedal 41 and wire clamp 42, described loose ends push pedal 41 includes plate body 411 and is arranged on plate body
Shifting block 412 on 411, shifting block 412 is fixed on plate body 411 by connecting rod 413, and described wire clamp 42 is elastic sheet metal, such as
Shown in Fig. 8, the approximate square metal cylinder of shape of wire clamp 42, there is a bare terminal end 421 Just One Of Those Things side, bare terminal end 421 with
Gap is left, cable connector 6 is blocked by bare terminal end 421 using metallic elastic between wire clamp right side wall 422, further, in order to
It is easier to clamp cable connector 6, described bare terminal end 421 is an inclined plane, it is 5 degree -15 with the angle of wire clamp right side wall 422
Degree；Further, described bare terminal end 421 is provided with anti-skid rack 4211.The end profile of described box body 1 is divided into
It is equipped with two row's terminal grooves 11, a wire clamp 42 is set in each terminal groove 11, is respectively provided with the upper and lower surface of described box body 1
There are shifting block through hole corresponding with each terminal groove 11, described shifting block through hole and corresponding terminal groove 11 to communicate, during making, dial
One end of fast through hole is passed directly to the end of box body, forms opening, connecting rod 413 is put into after shifting block through hole by this opening again
Using plastic strip, the opening of shifting block through hole is sealed, shifting block 412 is against bare terminal end 421.
With reference to Fig. 2 and Fig. 3, the principle of the present invention and circuit part are elaborated：The present invention includes RS232 and turns
Die change block, RS485 modular converter, data control block, mode selection module, cable insulation displacement connector and USB joint, described parallel port turns
The interface chip of die change block includes 74LS273 address pio chip, 74LS374 data output chip and 74LS244 data input
Chip, the interface chip of RS232 modular converter is MAX232 chip, and the interface chip of RS485 modular converter is MAX485 chip,
The conversion chip of parallel port modular converter adopts CH341 chip, and RS232 modular converter, the conversion chip of RS485 modular converter are all adopted
Use CH341T chip.Described cable insulation displacement connector includes 50 terminals, and wherein 25 terminals are parallel port terminal, with parallel port modular converter
Interface chip connect, remaining 25 terminals are serial ports terminal, turn with the interface chip of RS232 modular converter and RS485 respectively
The interface chip of die change block connects；Described mode selection module includes toggle switch and decoder, and decoder adopts 74LS139 core
Piece.Described data control block includes interconnective data and selects chip EP1C6 and USB HUB chip, and USB HUB chip is adopted
Use GL850G chip.
USB joint uses A type USB public affairs mouth plug, and usb circuit designs according to USB2.0 interface definition, by USB plug
Draw 4 pins, pin VCC (or after concatenation one inductance) meets power supply VCC, the pin D- and D+ DM0 with GL850G chip respectively
Pin and DP0 pin connect, and pin GND is grounded.
Data control block is the bridge connecting USB joint circuit and modular converter, by supporting 4 road USB2.0 input and output
GL850G chip and ancillary circuit elements composition.USB primary input output interface DM0 pin and DP0 pin and usb circuit
Pin D- is connected with D+, and the DM1 and DP1 data pins of first via USB interface that 4 tunnels tap in mouth select chip with data
DO1- with the DO1+ data pins of EP1C6 are connected, and the DM2 and DP2 data pins of the second tunnel USB interface select chip with data
DO2- with the DO2+ data pins of EP1C6 are connected, and the DM3 and DP3 data pins of the 3rd tunnel USB interface select chip with data
DO3- with the DO3+ data pins of EP1C6 are connected, the 4th tunnel USB interface reserve without.
RS232 serial ports modular converter turns USB conversion chip by RS232 serial interface chip MAX232, RS232 serial ports
CH341T and ancillary circuit elements composition.The wherein pin UD- of conversion chip CH341T and UD+ selects chip with data
The DI1- and DI1+ data pins of EP1C6 are connected, the RXD and TXD pin of chip CH341T and RS232 serial interface chip
The RXDI of MAX232 is connected with TXDI.
RS485 serial ports modular converter turns USB conversion chip by RS485 serial interface chip MAX485, RS485 serial ports
CH341T and ancillary circuit elements composition.Wherein conversion chip CH341T pin UD- and UD+ selects chip EP1C6 with data
DI2- be connected with DI2+ data pins, the RXD and TXD pin of chip CH341T and RS485 serial interface chip MAX485's
RXD is connected with TXD, and the TNOW pin of CH341T is connected with RE and TE pin.
Parallel port modular converter turns USB conversion chip CH341, parallel port interface chip and ancillary circuit elements group by parallel port
Become.Using gate element, parallel port is turned with the address choice pin AS of USB conversion chip CH341, Read-write Catrol pin WR, data
The control signal of base pin selection DS output is combined, and is connected with the control pin of three parallel port interface chips after combination.Data
Input and output pin DATA is defeated with 74LS273 address pio chip, 74LS374 data output chip and 74LS244 data respectively
The data pins entering chip are joined directly together, and can be considered a data bus.The wherein pin UD- of conversion chip CH341 and UD+ with
Data selects the DI1- and DI1+ data pins of chip EP1C6 to be connected.
Toggle switch, using the DIP flat pattern toggle switch having 3 dial-ups (K1, K2 and K3), selects work by toggle switch
Operation mode is as follows：When toggle switch K1 is chosen as 0, toggle switch K2 and K3 effectively, when toggle switch K2 and K3 selects 00, changes
Device turns USB interface pattern for RS232 serial ports；When toggle switch K2 and K3 is chosen as 01, conversion equipment turns for RS485 serial ports
USB interface pattern；When toggle switch K2 and K3 is chosen as 10, conversion equipment turns USB interface pattern for parallel port；Toggle switch K2 with
It is undefined pattern that K3 is chosen as when 11, extends use after remaining.
As shown in figure 9, the mode of connection of the cable insulation displacement connector of the second embodiment of the present invention is the side fixing using bolt
Formula, that is, the upper end in each terminal groove be provided with screwed hole 12, when cable head insertion terminal groove by stove bolt by cable head
Fixing.
The above is the preferred embodiment of the present invention, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this
Bright protection domain.
Claims (9)
1. a kind of Multifunctional debugging interface switching device it is characterised in that include parallel port modular converter, RS232 modular converter,
RS485 modular converter, data control block, mode selection module, cable insulation displacement connector and USB joint, described parallel port modulus of conversion
Block, RS232 modular converter and RS485 modular converter all include interface chip and conversion chip；Described cable insulation displacement connector includes
50 terminals, wherein 25 terminals are parallel port terminal, are connected with the interface chip of parallel port modular converter, remaining 25 terminals
For serial ports terminal, it is connected with the interface chip of RS232 modular converter and the interface chip of RS485 modular converter respectively；Described
Mode selection module includes toggle switch and decoder；Described data control block include interconnective data select chip and
USB HUB chip；Described USB joint is connected with USB HUB chip；The conversion chip of described parallel port modular converter, RS232
The conversion chip of modular converter, the conversion chip of RS485 modular converter and decoder select chip to be connected with data respectively, number
Select to turn on corresponding interface modes according to the dial-up of toggle switch according to selecting chip.
2. a kind of Multifunctional debugging interface switching device according to claim 1 is it is characterised in that described parallel port is changed
Module, RS232 modular converter, RS485 modular converter, data control block, mode selection module and the setting of cable insulation displacement connector
In a box body, described toggle switch is arranged on box surface, and described cable insulation displacement connector is arranged on box body end, cable clamping
50 terminals of device divide two rows to arrange, and often arrange 25.
3. a kind of Multifunctional debugging interface switching device according to claim 2 is it is characterised in that described cable insulation displacement connector
Including loose ends push pedal and wire clamp, the shifting block that described loose ends push pedal includes plate body and is arranged on plate body；Described wire clamp is elasticity gold
Belong to piece, wire clamp includes bare terminal end, leaves gap between bare terminal end and wire clamp right side wall, and cable is connect by bare terminal end using metallic elastic
Head blocks；It is vertically disposed with two row's terminal grooves in the end of described box body, a wire clamp is set in each terminal groove, described
The upper and lower surface of box body is respectively provided with the through hole that a row is communicated with terminal groove.
4. a kind of Multifunctional debugging interface switching device according to claim 3 is it is characterised in that on described bare terminal end
It is provided with anti-skid rack.
5. a kind of Multifunctional debugging interface switching device according to claim 3 is it is characterised in that described bare terminal end and line
The angle of folder right side wall is 5 degree of -15 degree.
6. a kind of Multifunctional debugging interface switching device according to claim 1 and 2 is it is characterised in that described parallel port end
Son is white, and RS232 serial ports terminal is black, and RS485 serial ports terminal is blueness.
7. a kind of Multifunctional debugging interface switching device according to claim 1 is it is characterised in that described toggle switch is
DIP flat pattern toggle switch.
8. a kind of Multifunctional debugging interface switching device according to claim 1 is it is characterised in that described USB HUB core
Piece is GL850G chip.
9. a kind of Multifunctional debugging interface switching device according to claim 1 is it is characterised in that decoder is
74LS139 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410233053.8A CN103984661B (en) | 2014-05-29 | 2014-05-29 | A kind of Multifunctional debugging interface switching device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410233053.8A CN103984661B (en) | 2014-05-29 | 2014-05-29 | A kind of Multifunctional debugging interface switching device |
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| Publication Number | Publication Date |
|---|---|
| CN103984661A CN103984661A (en) | 2014-08-13 |
| CN103984661B true CN103984661B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410233053.8A Active CN103984661B (en) | 2014-05-29 | 2014-05-29 | A kind of Multifunctional debugging interface switching device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113105Y (en) * | 2007-07-04 | 2008-09-10 | 青岛海信电器股份有限公司 | Connecting device |
| CN201584585U (en) * | 2010-01-05 | 2010-09-15 | 青岛海信智能商用设备有限公司 | Interface circuit and network fiscal processor adopting same |
| CN202748786U (en) * | 2012-08-16 | 2013-02-20 | 山东神戎电子股份有限公司 | Multifunctional electric level converter |
| CN203012707U (en) * | 2012-11-29 | 2013-06-19 | 郑州华力信息技术有限公司 | USB (Universal Serial Bus) serial port three-in-one converter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100476929B1 (en) * | 2002-09-03 | 2005-03-16 | 삼성전자주식회사 | USB system having card type USb interface connector |
| US8024500B2 (en) * | 2005-08-15 | 2011-09-20 | Research In Motion Limited | Universal peripheral connector |
-
2014
- 2014-05-29 CN CN201410233053.8A patent/CN103984661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113105Y (en) * | 2007-07-04 | 2008-09-10 | 青岛海信电器股份有限公司 | Connecting device |
| CN201584585U (en) * | 2010-01-05 | 2010-09-15 | 青岛海信智能商用设备有限公司 | Interface circuit and network fiscal processor adopting same |
| CN202748786U (en) * | 2012-08-16 | 2013-02-20 | 山东神戎电子股份有限公司 | Multifunctional electric level converter |
| CN203012707U (en) * | 2012-11-29 | 2013-06-19 | 郑州华力信息技术有限公司 | USB (Universal Serial Bus) serial port three-in-one converter |
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| Publication number | Publication date |
|---|---|
| CN103984661A (en) | 2014-08-13 |
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Effective date of registration: 20160607 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: STATE GRID SHANDONG ELECTRIC POWER COMPANY, PINGYIN POWER SUPPLY COMPANY Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State net Shandong Pingying County electric company |
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