CN204304165U - Usb adapter - Google Patents
Usb adapter Download PDFInfo
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- CN204304165U CN204304165U CN201420520475.9U CN201420520475U CN204304165U CN 204304165 U CN204304165 U CN 204304165U CN 201420520475 U CN201420520475 U CN 201420520475U CN 204304165 U CN204304165 U CN 204304165U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Abstract
<b> the utility model relates to serial ports switching technique field, it is a kind of USB adapter, comprise USB interface, RS232 interface, RS485 interface and USB can be outputed signal the conversion chip group that be converted to RS485 input signal or RS232 input signal, USB interface, RS232 interface and RS485 interface are electrically connected respectively by cable and conversion chip group.The utility model reasonable and compact in structure, it can realize USB output signal to be converted to RS232 input signal, RS485 input signal and RJ45 input signal respectively by conversion chip group, thus is convenient to commissioning staff and uses the utility model to complete to debug accordingly with RJ45 interface RS232 interface, RS485 interface or to communicate; Make commissioning staff only need carry the utility model and can complete the conversion of USB to RS232, RS485 and RJ45, do not need additionally to carry other conversion equipment, and the corresponding driving of the utility model only need be installed on mainboard to be debugged can complete debugging, it is time saving and energy saving to have, convenient and swift, simple feature efficiently.</b>
Description
Technical field
the utility model relates to serial ports switching technique field, is a kind of USB adapter.
Background technology
in industrial control field, extensive use has the interfaces such as RS232, RS485, and its developing history is long, still has a lot of field at present in use.Such as some programmings fan, then can use various serial ports when use programmable device; Also have some Machinery Control System and gate control systems etc., mostly also carrying out communication with RS232, RS485.Mainboard traditional in the past is all equipped with these interfaces, but due to present main board market location difference, a lot of novel mainboard is without this type of serial interface.Such as, present notebook is just seldom again with these legacy interface.And in order to debug this equipment, commissioning staff often needs to prepare multiple cable conversion equipment, and mutually not mating appears in the driving of each cable sometimes, need unloading repeatedly and installation, rather inconvenience, thus cause the bothersome effort of its debugging efforts, and debugging efficiency is low.
Summary of the invention
the utility model provides a kind of USB adapter, overcome the deficiency of above-mentioned prior art, it effectively can solve existing mainboard interface to be debugged and differ, commissioning staff is needed to carry multiple cable conversion equipment, and mutually not mating appears in the driving of each cable sometimes, need unloading repeatedly and installation, rather inconvenience, thus cause the bothersome effort of its debugging efforts, and the problem that debugging efficiency is low.
the technical solution of the utility model is realized by following measures: a kind of USB adapter, comprise USB interface, RS232 interface, RS485 interface and USB can be outputed signal the conversion chip group that be converted to RS485 input signal or RS232 input signal, USB interface, RS232 interface and RS485 interface are electrically connected respectively by cable and conversion chip group.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned conversion chip group can comprise FT232 chip, 93C46 chip and ADM485 chip, USB interface and FT232 chip electrical are connected together, FT232 chip is electrically connected with respectively USB interface, RS232 interface, 93C46 chip and ADM485 chip, ADM485 chip is electrically connected with RS485 interface.
above-mentionedly also can comprise RJ45 interface, RJ45 interface with USB can also be outputed signal the conversion chip group being converted to RJ45 input signal and be electrically connected.
above-mentioned conversion chip group also can comprise PE68515 chip, and RJ45 interface is connected together by PE68515 chip and FT232 chip electrical.
the RD-pin of the TX pin of above-mentioned RS232 interface and the DI pin of ADM485 interface and PE68515 chip can be electrically connected and form the first node, the TXD pin of the first node and FT232 chip is electrically connected, the first resistance is in series with between the RD-pin of PE68515 chip and the first node, the RD+ pin of the RX pin of RS232 interface and the RO pin of ADM485 interface and PE68515 chip is electrically connected and forms the second node, the RXD pin of the second node and FT232 chip is electrically connected, the second resistance is in series with between the RD+ pin of PE68515 chip and the second node, the END pin ground connection of RS232 interface, the RE pin of ADM485 chip and DE pin are electrically connected and form the 3rd node, the TXDEN pin of the 3rd node and FT232 chip is electrically connected, the VCC pin of ADM485 chip and the feeder ear of 5V power supply are electrically connected, the GND pin ground connection of ADM485 chip, the A pin of ADM485 interface and the A pin of RS485 chip are electrically connected by the 3rd resistance, the B pin of ADM485 interface and the B pin of RS485 chip are electrically connected by the 4th resistance, the first voltage stabilizing earthed circuit is accessed between the A pin of ADM485 interface and the 3rd resistance, the second voltage stabilizing earthed circuit is accessed between the B pin of ADM485 interface and the 4th resistance, each voltage stabilizing earthed circuit includes two differential concatenation voltage stabilizing didoes, one end of two differential concatenation voltage stabilizing didoes is corresponding electric connecting terminal, the other end ground connection of two differential concatenation voltage stabilizing didoes, the RX+ pin of PE68515 chip and the first pin of RJ45 interface are electrically connected, the RX-pin of PE68515 chip and the second pin of RJ45 interface are electrically connected, the TX+ pin of PE68515 chip and the 3rd pin of RJ45 interface are electrically connected, the TX-pin of PE68515 chip and the 6th pin of RJ45 interface are electrically connected, 4th pin of RJ45 interface and the 5th pin of RJ45 interface are electrically connected and form the 4th node, the CT3 pin of the 4th node and PE68515 chip is electrically connected, the 5th resistance and the 6th resistance is in series with respectively between 4th node and the CT3 pin of PE68515 chip, and by electrical connection access first capacity earth circuit between the 5th resistance and the 6th resistance, the NC3 pin of PE68515 chip and CT2 pin are electrically connected and form the 5th node, 5th node is electrically connected with respectively power supply side and the second capacity earth circuit, the TD+ pin of PE68515 chip and TD-pin are electrically connected and form the 6th node, the 7th resistance is in series with between 6th node and the TD+ pin of PE68515 chip, the CT0 pin of PE68515 chip is electrically connected with the 3rd capacity earth circuit, electrical connection terminals is equipped with between first resistance and the first node and between the second resistance and the second node, two electrical connection terminals are electrically connected and are electrically connected with the 4th capacity earth circuit, each capacity earth circuit includes electric capacity, one end of electric capacity is corresponding electric connecting terminal, the other end ground connection of electric capacity.
the utility model reasonable and compact in structure, it can realize USB output signal to be converted to RS232 input signal, RS485 input signal and RJ45 input signal respectively by conversion chip group, thus is convenient to commissioning staff and uses the utility model to complete to debug accordingly with RJ45 interface RS232 interface, RS485 interface or to communicate; Make commissioning staff only need carry the utility model and can complete the conversion of USB to RS232, RS485 and RJ45, do not need additionally to carry other conversion equipment, and the corresponding driving of the utility model only need be installed on mainboard to be debugged can complete debugging, it is time saving and energy saving to have, convenient and swift, simple feature efficiently.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the utility model most preferred embodiment.
accompanying drawing 2 is the first half of the circuit diagram of accompanying drawing 1.Accompanying drawing 3 is the latter half of the circuit diagram of accompanying drawing 1.
coding in accompanying drawing is respectively: 1 is USB interface, and 2 is RS232 interface, and 3 is RS485 interface, and 4 is conversion chip group, and 5 is FT232 chip, and 6 is 93C46 chip, and 7 is ADM485 chip, and 8 is RJ45 interface, and 9 is PE68515 chip.
Embodiment
the utility model by the restriction of following embodiment, can not determine concrete execution mode according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2,3, this USB adapter usb 1, RS232 interface 2, RS485 interface 3 and USB output signal can be converted to the conversion chip group 4 of RS485 input signal or RS232 input signal, usb 1, RS232 interface 2 and RS485 interface 3 are electrically connected respectively by cable and conversion chip group 4.In use, due to existing various chip being equipped with usb 1, usb 1 of the present utility model is inserted in usb 1, the conversion to RS232 and RS485 can be realized, thus be convenient to commissioning staff and debugged accordingly with RS485 interface 3 by RS232 interface 2 or communicate; Thus, commissioning staff only need carry the utility model can complete the conversion of USB to RS232 and RS485, do not need additionally to carry other conversion equipment, and the corresponding driving of the utility model only need be installed on mainboard to be debugged can complete debugging, it is time saving and energy saving to have, convenient and swift, simple feature efficiently.
according to actual needs, above-mentioned USB adapter can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, conversion chip group 4 comprises FT232 chip 5,93C46 chip 6 and ADM485 chip 7, usb 1 and FT232 chip 5 are electrically connected, FT232 chip 5 is electrically connected with respectively on usb 1, RS232 interface 2,93C46 chip 6 and ADM485 chip 7, ADM485 chip 7 and is electrically connected with RS485 interface 3.According to demand, FT232 chip 5 all can adopt existing known technology with each electrical connection of usb 1, RS232 interface 2,93C46 chip 6 and ADM485 chip 7; ADM485 chip 7 can adopt existing known technology with the electrical connection of RS485 interface 3.The function that USB output signal is converted to RS485 input signal or RS232 input signal by conversion chip group 4 can be realized thus; Conversion chip group 4 also can adopt other existing known technology.
as shown in accompanying drawing 1,2,3, also comprise RJ45 interface 8, RJ45 interface 8 and USB can also be outputed signal the conversion chip group 4 being converted to RJ45 input signal and be electrically connected.In use, usb 1 of the present utility model is inserted in usb 1, the conversion to RJ45 can be realized, thus be convenient to commissioning staff and debugged accordingly by RJ45 interface 8 or communicate; Thus, commissioning staff only need carry the utility model can complete the conversion of USB to RJ45, does not need additionally to carry other conversion equipment, and the corresponding driving of the utility model only need be installed on mainboard to be debugged can complete debugging, it is time saving and energy saving to have, convenient and swift, simple feature efficiently.
as shown in accompanying drawing 1,2, conversion chip group 4 is also comprised PE68515 chip 9, RJ45 interface 8 and is electrically connected by PE68515 chip 9 and FT232 chip 5.According to demand, the electrical connection between RJ45 and PE68515 chip 9 and RJ45 and FT232 chip 5 all can adopt existing known technology.The function that USB output signal is converted to RJ45 input signal by conversion chip group 4 can be realized thus.
as accompanying drawing 1, 2, shown in 3, the RD-pin of the TX pin of RS232 interface 2 and the DI pin of ADM485 interface and PE68515 chip 9 is electrically connected and forms the first node, the TXD pin of the first node and FT232 chip 5 is electrically connected, the first resistance is in series with between the RD-pin of PE68515 chip 9 and the first node, the RD+ pin of the RX pin of RS232 interface 2 and the RO pin of ADM485 interface and PE68515 chip 9 is electrically connected and forms the second node, the RXD pin of the second node and FT232 chip 5 is electrically connected, the second resistance is in series with between the RD+ pin of PE68515 chip 9 and the second node, the END pin ground connection of RS232 interface 2, the RE pin of ADM485 chip 7 and DE pin are electrically connected and form the 3rd node, the TXDEN pin of the 3rd node and FT232 chip 5 is electrically connected, the VCC pin of ADM485 chip 7 and the feeder ear of 5V power supply are electrically connected, the GND pin ground connection of ADM485 chip 7, the A pin of ADM485 interface and the A pin of RS485 chip are electrically connected by the 3rd resistance, the B pin of ADM485 interface and the B pin of RS485 chip are electrically connected by the 4th resistance, the first voltage stabilizing earthed circuit is accessed between the A pin of ADM485 interface and the 3rd resistance, the second voltage stabilizing earthed circuit is accessed between the B pin of ADM485 interface and the 4th resistance, each voltage stabilizing earthed circuit includes two differential concatenation voltage stabilizing didoes, one end of two differential concatenation voltage stabilizing didoes is corresponding electric connecting terminal, the other end ground connection of two differential concatenation voltage stabilizing didoes, the RX+ pin of PE68515 chip 9 and the first pin of RJ45 interface 8 are electrically connected, the RX-pin of PE68515 chip 9 and the second pin of RJ45 interface 8 are electrically connected, the TX+ pin of PE68515 chip 9 and the 3rd pin of RJ45 interface 8 are electrically connected, the TX-pin of PE68515 chip 9 and the 6th pin of RJ45 interface 8 are electrically connected, 4th pin of RJ45 interface 8 and the 5th pin of RJ45 interface 8 are electrically connected and form the 4th node, the CT3 pin of the 4th node and PE68515 chip 9 is electrically connected, the 5th resistance and the 6th resistance is in series with respectively between 4th node and the CT3 pin of PE68515 chip 9, and by electrical connection access first capacity earth circuit between the 5th resistance and the 6th resistance, the NC3 pin of PE68515 chip 9 and CT2 pin are electrically connected and form the 5th node, 5th node is electrically connected with respectively power supply side and the second capacity earth circuit, the TD+ pin of PE68515 chip 9 and TD-pin are electrically connected and form the 6th node, the 7th resistance is in series with between 6th node and the TD+ pin of PE68515 chip 9, the CT0 pin of PE68515 chip 9 is electrically connected with the 3rd capacity earth circuit, electrical connection terminals is equipped with between first resistance and the first node and between the second resistance and the second node, two electrical connection terminals are electrically connected and are electrically connected with the 4th capacity earth circuit, each capacity earth circuit includes electric capacity, one end of electric capacity is corresponding electric connecting terminal, the other end ground connection of electric capacity.RS232 interface 2 can be realized like this, RS485 interface 3 accesses FT232 chip 5 jointly with RJ45 interface 8, one can be installed thus and drive.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (5)
1. a USB adapter, it is characterized in that the conversion chip group comprising USB interface, RS232 interface, RS485 interface and USB output signal can be converted to RS485 input signal or RS232 input signal, USB interface, RS232 interface and RS485 interface are electrically connected respectively by cable and conversion chip group; Wherein: also comprise RJ45 interface, RJ45 interface with USB can also be outputed signal the conversion chip group being converted to RJ45 input signal and be electrically connected.
2. USB adapter according to claim 1, it is characterized in that conversion chip group comprises FT232 chip, 93C46 chip and ADM485 chip, USB interface and FT232 chip electrical are connected together, FT232 chip is electrically connected with respectively USB interface, RS232 interface, 93C46 chip and ADM485 chip, ADM485 chip is electrically connected with RS485 interface.
3. USB adapter according to claim 1, is characterized in that conversion chip group also comprises PE68515 chip, and RJ45 interface is connected together by PE68515 chip and FT232 chip electrical.
4. USB adapter according to claim 2, is characterized in that conversion chip group also comprises PE68515 chip, and RJ45 interface is connected together by PE68515 chip and FT232 chip electrical.
5. USB adapter according to claim 4, it is characterized in that the RD-pin of the TX pin of RS232 interface and the DI pin of ADM485 interface and PE68515 chip is electrically connected and forms the first node, the TXD pin of the first node and FT232 chip is electrically connected, the first resistance is in series with between the RD-pin of PE68515 chip and the first node, the RD+ pin of the RX pin of RS232 interface and the RO pin of ADM485 interface and PE68515 chip is electrically connected and forms the second node, the RXD pin of the second node and FT232 chip is electrically connected, the second resistance is in series with between the RD+ pin of PE68515 chip and the second node, the END pin ground connection of RS232 interface, the RE pin of ADM485 chip and DE pin are electrically connected and form the 3rd node, the TXDEN pin of the 3rd node and FT232 chip is electrically connected, the VCC pin of ADM485 chip and the feeder ear of 5V power supply are electrically connected, the GND pin ground connection of ADM485 chip, the A pin of ADM485 interface and the A pin of RS485 chip are electrically connected by the 3rd resistance, the B pin of ADM485 interface and the B pin of RS485 chip are electrically connected by the 4th resistance, the first voltage stabilizing earthed circuit is accessed between the A pin of ADM485 interface and the 3rd resistance, the second voltage stabilizing earthed circuit is accessed between the B pin of ADM485 interface and the 4th resistance, each voltage stabilizing earthed circuit includes two differential concatenation voltage stabilizing didoes, one end of two differential concatenation voltage stabilizing didoes is corresponding electric connecting terminal, the other end ground connection of two differential concatenation voltage stabilizing didoes, the RX+ pin of PE68515 chip and the first pin of RJ45 interface are electrically connected, the RX-pin of PE68515 chip and the second pin of RJ45 interface are electrically connected, the TX+ pin of PE68515 chip and the 3rd pin of RJ45 interface are electrically connected, the TX-pin of PE68515 chip and the 6th pin of RJ45 interface are electrically connected, 4th pin of RJ45 interface and the 5th pin of RJ45 interface are electrically connected and form the 4th node, the CT3 pin of the 4th node and PE68515 chip is electrically connected, the 5th resistance and the 6th resistance is in series with respectively between 4th node and the CT3 pin of PE68515 chip, and by electrical connection access first capacity earth circuit between the 5th resistance and the 6th resistance, the NC3 pin of PE68515 chip and CT2 pin are electrically connected and form the 5th node, 5th node is electrically connected with respectively power supply side and the second capacity earth circuit, the TD+ pin of PE68515 chip and TD-pin are electrically connected and form the 6th node, the 7th resistance is in series with between 6th node and the TD+ pin of PE68515 chip, the CT0 pin of PE68515 chip is electrically connected with the 3rd capacity earth circuit, electrical connection terminals is equipped with between first resistance and the first node and between the second resistance and the second node, two electrical connection terminals are electrically connected and are electrically connected with the 4th capacity earth circuit, each capacity earth circuit includes electric capacity, one end of electric capacity is corresponding electric connecting terminal, the other end ground connection of electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520475.9U CN204304165U (en) | 2014-09-11 | 2014-09-11 | Usb adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520475.9U CN204304165U (en) | 2014-09-11 | 2014-09-11 | Usb adapter |
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| Publication Number | Publication Date |
|---|---|
| CN204304165U true CN204304165U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520475.9U Active CN204304165U (en) | 2014-09-11 | 2014-09-11 | Usb adapter |
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| CN (1) | CN204304165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406210A (en) * | 2015-12-28 | 2016-03-16 | 苏州卓德电子有限公司 | Wiring structure in equipment |
| CN110635324A (en) * | 2019-09-24 | 2019-12-31 | 华勤通讯技术有限公司 | Programmable debugging connector |
-
2014
- 2014-09-11 CN CN201420520475.9U patent/CN204304165U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406210A (en) * | 2015-12-28 | 2016-03-16 | 苏州卓德电子有限公司 | Wiring structure in equipment |
| CN110635324A (en) * | 2019-09-24 | 2019-12-31 | 华勤通讯技术有限公司 | Programmable debugging connector |
| CN110635324B (en) * | 2019-09-24 | 2021-02-26 | 华勤技术股份有限公司 | Programmable debugging connector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |