CN211428499U - Interface circuit compatible with multiple working modes, connecting cable and electronic equipment - Google Patents
Interface circuit compatible with multiple working modes, connecting cable and electronic equipment Download PDFInfo
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- CN211428499U CN211428499U CN201922326187.5U CN201922326187U CN211428499U CN 211428499 U CN211428499 U CN 211428499U CN 201922326187 U CN201922326187 U CN 201922326187U CN 211428499 U CN211428499 U CN 211428499U
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Abstract
The utility model relates to an interface circuit, connection cable and electronic equipment that can compatible multiple mode, include: the signal conversion unit, the power circuit and the connector, the first pin, the second pin, the third pin and the fourth pin of the connector are correspondingly connected with the fourteenth pin, the thirteenth pin, the sixth pin and the fifth pin of the signal conversion unit, the sixth pin, the seventh pin and the eighth pin of the connector are correspondingly connected with the eleventh pin, the twelfth pin and the tenth pin of the signal conversion unit and are all connected with the power circuit, and the fifth pin of the connector is grounded; in the first working mode, the fifth pin, the sixth pin and the seventh pin of the connector are connected, and the second pin, the third pin and the fifth pin are used for receiving and transmitting data; in the second working mode, the sixth pin and the seventh pin of the connector are both in idle connection, and the first pin and the second pin are used for receiving and transmitting data; and in a third working mode, a sixth pin of the connector is connected in a null mode, a seventh pin and a fifth pin of the connector are connected, and the first pin, the second pin, the third pin and the fourth pin are used for transceiving data. Implement the utility model discloses can realize multiple communication protocol's compatibility.
Description
Technical Field
The utility model relates to the field of electronic technology, more specifically say, but interface circuit, connection cable and electronic equipment that compatible multiple mode are related to.
Background
In the prior art, the RS422 and the RS485 can be used together, but have certain limitations. Since RS422 is full duplex and RS485 is half duplex, there is a technical difference in the data transmission process requirements during the data processing process. And RS232 and RS422/RS485 are not compatible, either in terms of data protocol or level of data transmission. Therefore, in the existing circuit, different circuit designs need to be performed by using different data processing chips for different communication data, and the circuit is complex and high in cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned prior art defect of prior art, an interface circuit, connection cable and electronic equipment that can compatible multiple mode are provided.
The utility model provides a technical scheme that its technical problem adopted is: an interface circuit is configured to be compatible with a plurality of operating modes, comprising: the signal conversion unit is connected with a superior host, the power circuit is connected with the signal conversion unit, the connector is connected with the signal conversion unit, a first pin and a second pin of the connector are respectively connected with a fourteenth pin and a thirteenth pin of the signal conversion unit, a third pin and a fourth pin of the connector are respectively connected with a sixth pin and a fifth pin of the signal conversion unit, a sixth pin of the connector is respectively connected with an eleventh pin and the power circuit of the signal conversion unit, a seventh pin of the connector is respectively connected with a twelfth pin and the power circuit of the signal conversion unit, an eighth pin of the connector is respectively connected with a tenth pin and the power circuit of the signal conversion unit, and a fifth pin of the connector is grounded; wherein the interface circuit comprises three operating modes:
in a first working mode, a sixth pin and a seventh pin of the connector are in conduction connection with a fifth pin of the connector, and a second pin, a third pin and the fifth pin of the connector are used for receiving and transmitting data;
in a second working mode, a sixth pin and a seventh pin of the connector are in a null connection state, and the first pin of the connector and the second pin of the connector are used for receiving and transmitting data;
in a third working mode, the sixth pin of the connector is in a null connection state, the seventh pin of the connector is in conduction connection with the fifth pin of the connector, and the first pin, the second pin, the third pin and the fourth pin of the connector are used for receiving and transmitting data.
Preferably, the model of the signal conversion unit is MAX 3160.
Preferably, in the first operating mode, the connector is connected to the RS232 interface through a first connection cable, the first connection cable includes a first end connected to the connector and a second end connected to the RS232 interface, a sixth pin and a seventh pin of the first end of the first connection cable are connected to the second end of the connector after being connected to the fifth pin, and the second pin, the third pin and the fifth pin of the first end of the first connection cable are correspondingly connected to the second pin, the third pin and the fifth pin of the second end of the first connection cable, respectively.
Preferably, during the second operating mode, the connector is connected with the RS485 interface through a second connection cable, the second connection cable includes a first end connected with the connector and a second end connected with the RS485 interface, a sixth pin and a seventh pin of the first end of the second connection cable are both suspended, and the first pin and the second pin of the first end of the second connection cable are respectively connected with the first pin and the second pin of the second end of the second connection cable correspondingly.
Preferably, in the third operating mode, the connector is connected to the RS422 interface through a third connection cable, the third connection cable includes a first end connected to the connector and a second end connected to the RS422 interface, a sixth pin of the first end of the third connection cable is suspended, and a seventh pin and a fifth pin are connected, and the first pin, the second pin, the third pin and the fourth pin of the first end of the third connection cable are respectively connected to the first pin, the second pin, the third pin and the fourth pin of the second end of the third connection cable.
The utility model also constructs a connecting cable, which can be applied to the interface circuit compatible with a plurality of working modes, and the interface circuit is connected with the RS232 interface through the connecting cable to work as a first working mode;
the connecting cable comprises a first end connected with the connector and a second end connected with the RS232 interface, a sixth pin of the first end of the connecting cable is connected with a fifth pin and then connected with the second end of the connecting cable, and the second pin, the third pin and the fifth pin of the first end of the connecting cable are correspondingly connected with the second pin, the third pin and the fifth pin of the second end of the connecting cable respectively.
The utility model also constructs a connecting cable, which can be applied to the interface circuit compatible with a plurality of working modes, and the interface circuit is connected with the RS485 interface through the connecting cable to work as a second working mode;
the connecting cable comprises a first end connected with the connector and a second end connected with the RS485 interface, a sixth pin and a seventh pin of the first end of the connecting cable are both suspended, and the first pin and the second pin of the first end of the connecting cable are respectively and correspondingly connected with the first pin and the second pin of the second end of the connecting cable.
The utility model also constructs a connecting cable, which can be applied to the interface circuit compatible with a plurality of working modes, and the interface circuit is connected with the RS422 interface through the connecting cable to work as a third working mode;
the connecting cable comprises a first end connected with the connector and a second end connected with the RS422 interface, a sixth pin of the first end of the connecting cable is suspended, a seventh pin of the first end of the connecting cable is connected with a fifth pin of the connecting cable, and the first pin, the second pin, the third pin and the fourth pin of the first end of the connecting cable are correspondingly connected with the first pin, the second pin, the third pin and the fourth pin of the second end of the connecting cable respectively.
The present invention also provides an electronic device including an interface circuit compatible with a plurality of operation modes as described in any of the above.
Implement the utility model discloses an interface circuit, connection cable and electronic equipment that can compatible multiple mode have following beneficial effect: compatibility of a plurality of communication protocols can be achieved by a simple design.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic circuit diagram of an interface circuit compatible with multiple operating modes according to the present invention;
fig. 2 is a schematic circuit diagram of an embodiment of a connection cable according to the present invention;
fig. 3 is a schematic circuit diagram of an embodiment of a connection cable according to the present invention;
fig. 4 is a schematic circuit diagram of an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, in an embodiment of the interface circuit compatible with multiple operating modes of the present invention, the interface circuit includes: a signal conversion unit 110110 connected to the upper host, a power circuit connected to the signal conversion unit 110110, and a connector 120 connected to the signal conversion unit 110, wherein a first pin and a second pin of the connector 120 are respectively connected to a fourteenth pin and a thirteenth pin of the signal conversion unit 110, a third pin and a fourth pin of the connector 120 are respectively connected to a sixth pin and a seventh pin of the signal conversion unit 110, a sixth pin of the connector 120 is respectively connected to an eleventh pin and a power circuit of the signal conversion unit 110, a seventh pin of the connector 120 is respectively connected to a twelfth pin of the signal conversion unit 110 and the power circuit, an eighth pin of the connector 120 is respectively connected to a tenth pin and the power circuit of the signal conversion unit 110, and a fifth pin of the connector 120 is grounded; wherein, the interface circuit includes three kinds of mode:
in the first operating mode, the sixth pin and the seventh pin of the connector 120 are both in conduction connection with the fifth pin of the connector 120, and the second pin, the third pin and the fifth pin of the connector 120 are used for receiving and transmitting data;
in the second operating mode, the sixth pin and the seventh pin of the connector 120 are both in a null connection state, and the first pin of the connector 120 and the second pin of the connector 120 are used for receiving and transmitting data;
in the third operating mode, the sixth pin of the connector 120 is in a null state, the seventh pin of the connector 120 is in conduction connection with the fifth pin of the connector 120, and the first pin, the second pin, the third pin, and the fourth pin of the connector 120 are used for transmitting and receiving data.
Specifically, communication data between the host and the external device at an upper level is converted by the signal conversion unit 110, and data signal transmission between the signal conversion unit 110 and the external device is performed by the connector 120 connected to the signal conversion unit 110, wherein when data signals are input through different pins of the connector 120 in the connector 120, the data are processed by the signal conversion unit 110 through different communication protocols, that is, the pins of the connector 120 through which the data signals pass are different, and the processing procedure of the data signals corresponding to different communication protocols is performed, that is, different operation modes of the interface circuit are implemented. The operation modes of the interface circuit may include three types, the sixth pin and the seventh pin of the connector 120 are both in conduction connection with the fifth pin of the connector 120, and the second pin, the third pin, and the fifth pin of the connector 120 are used for receiving and transmitting data; in the second operating mode, the sixth pin and the seventh pin of the connector 120 are both in a null connection state, and the first pin of the connector 120 and the second pin of the connector 120 are used for receiving and transmitting data; in the third operating mode, the sixth pin of the connector 120 is in a null state, the seventh pin of the connector 120 is in conduction connection with the fifth pin of the connector 120, and the first pin, the second pin, the third pin, and the fourth pin of the connector 120 are used for transmitting and receiving data.
Optionally, in the above interface circuit, the signal conversion unit 110 includes a data processing chip U73, and the model of the data processing chip is MAX 3160. The connector 120 may employ a connector chip J74, which may employ a DB9 connector.
Optionally, as shown in fig. 2 to 4, in different operation modes, the connector 120 may connect different communication protocol interfaces, in an embodiment, in the first operation mode, the connector 120 connects to the RS232 interface through the first connection cable 200, the first connection cable 200 includes a first end 210 connected to the connector 120 and a second end 220 connected to the RS232 interface, a sixth pin and a seventh pin of the first end 210 of the first connection cable are connected to the fifth pin and then connected to the second end 220, and the second pin, the third pin, and the fifth pin of the first end 210 of the first connection cable are respectively connected to the second pin, the third pin, and the fifth pin of the second end 220. In an embodiment, in the second operation mode, the connector 120 is connected to the RS485 interface through the second connection cable 300, the second connection cable 300 includes a first end 310 connected to the connector 120 and a second end 320 connected to the RS485 interface, a sixth pin and a seventh pin of the first end 310 of the second connection cable are both floating, and a first pin and a second pin of the first end 310 of the second connection cable are respectively connected to a first pin and a second pin of the second end 320 of the second connection cable correspondingly. In another embodiment, in the third operation mode, the connector 120 is connected to the RS422 interface through a third connection cable 400, the third connection cable 400 includes a first end 410 connected to the connector 120 and a second end 420 connected to the RS422 interface, a sixth pin of the first end 410 of the third connection cable is floating, and a seventh pin and a fifth pin are connected, and the first pin, the second pin, the third pin and the fourth pin of the first end of the third connection cable are respectively connected to the first pin, the second pin, the third pin and the fourth pin of the second end of the third connection cable. Specifically, in order to implement the data signal transmission from different pins of the connector 120, different connection cables may be connected to the different pins of the connection cable, so as to implement the data signal transmission from different pins of the connection cable, and implement the operation of the interface circuit in different operation modes.
In addition, as shown in fig. 2, the connection cable 200 of the present invention can be applied to the above interface circuit compatible with multiple working modes, and the interface circuit connects the RS232 interface through the connection cable 200 to work as the first working mode; the connection cable 200 includes a first end 210 connected to the connector 120 and a second end 220 connected to the RS232 interface, a sixth pin and a fifth pin of the first end 210 of the connection cable 200 are connected to the second end, and the second pin, the third pin and the fifth pin of the first end 210 of the connection cable 200 are correspondingly connected to the second pin, the third pin and the fifth pin of the second end 220. Specifically, when the connection cable 200 is connected to the interface circuit, the interface circuit can transmit and process RS232 communication data.
In addition, as shown in fig. 3, the connection cable 300 of the present invention can be applied to the above interface circuit compatible with multiple working modes, and the interface circuit connects the RS485 interface through the connection cable 300 to operate as the second working mode; the connection cable 300 includes a first end 310 connected to the connector 120 and a second end 320 connected to the RS485 interface, the sixth pin and the seventh pin of the first end 310 of the connection cable are both suspended, and the first pin and the second pin of the first end 310 of the connection cable are respectively connected to the first pin and the second pin of the second end 320 of the connection cable. Specifically, when the connection cable 300 is connected to the interface circuit, the interface circuit can transmit and process RS485 communication data.
In addition, the connection cable 400 of the present invention can be applied to the above interface circuit compatible with multiple working modes, and the interface circuit connects the RS422 interface through the connection cable 400 to operate as a third working mode; the connection cable 400 includes a first end 410 connected to the connector 120 and a second end 420 connected to the RS422 interface, a sixth pin of the first end 410 of the connection cable is suspended, and a seventh pin and a fifth pin are connected, and the first pin, the second pin, the third pin, and the fourth pin of the first end 410 of the connection cable are respectively connected to the first pin, the second pin, the third pin, and the fourth pin of the second end 420 of the connection cable. Specifically, when the connection cable 400 is connected to the interface circuit, the interface circuit can transmit and process RS422 communication data.
In addition, the present invention provides an electronic device including an interface circuit compatible with a plurality of operating modes as described above. Specifically, the electronic device may implement transmission of data of different communication protocols through the interface circuit, for example, it may implement respective transmission of data of RS232, RS485, and RS 422. Without providing a plurality of interface circuits corresponding to each other at the same time in the electronic apparatus.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (9)
1. An interface circuit compatible with a plurality of operating modes, comprising: the signal conversion unit is connected with a superior host, the power circuit is connected with the signal conversion unit, the connector is connected with the signal conversion unit, a first pin and a second pin of the connector are respectively connected with a fourteenth pin and a thirteenth pin of the signal conversion unit, a third pin and a fourth pin of the connector are respectively connected with a sixth pin and a fifth pin of the signal conversion unit, a sixth pin of the connector is respectively connected with an eleventh pin and the power circuit of the signal conversion unit, a seventh pin of the connector is respectively connected with a twelfth pin and the power circuit of the signal conversion unit, an eighth pin of the connector is respectively connected with a tenth pin and the power circuit of the signal conversion unit, and a fifth pin of the connector is grounded; wherein the interface circuit comprises three operating modes:
in a first working mode, a sixth pin and a seventh pin of the connector are in conduction connection with a fifth pin of the connector, and a second pin, a third pin and the fifth pin of the connector are used for receiving and transmitting data;
in a second working mode, a sixth pin and a seventh pin of the connector are in a null connection state, and the first pin of the connector and the second pin of the connector are used for receiving and transmitting data;
in a third working mode, the sixth pin of the connector is in a null connection state, the seventh pin of the connector is in conduction connection with the fifth pin of the connector, and the first pin, the second pin, the third pin and the fourth pin of the connector are used for receiving and transmitting data.
2. The interface circuit compatible with multiple operating modes according to claim 1, wherein the signal conversion unit has a model of MAX 3160.
3. The interface circuit according to claim 1, wherein in the first operating mode, the connector is connected to an RS232 interface through a first connection cable, the first connection cable includes a first end connected to the connector and a second end connected to the RS232 interface, a sixth pin and a seventh pin of the first end of the first connection cable are connected to a fifth pin and then connected to the second end, and a second pin, a third pin and a fifth pin of the first end of the first connection cable are correspondingly connected to a second pin, a third pin and a fifth pin of the second end of the first connection cable, respectively.
4. The interface circuit according to claim 1, wherein in the second operation mode, the connector is connected to an RS485 interface through a second connection cable, the second connection cable includes a first end connected to the connector and a second end connected to the RS485 interface, a sixth pin and a seventh pin of the first end of the second connection cable are both floating, and the first pin and the second pin of the first end of the second connection cable are respectively connected to the first pin and the second pin of the second end of the second connection cable.
5. The interface circuit compatible with multiple operation modes according to claim 1, wherein in the third operation mode, the connector is connected to an RS422 interface through a third connection cable, the third connection cable includes a first end connected to the connector and a second end connected to the RS422 interface, a sixth pin of the first end of the third connection cable is floating and a seventh pin and a fifth pin are connected, and the first pin, the second pin, the third pin and the fourth pin of the first end of the third connection cable are respectively connected to the first pin, the second pin, the third pin and the fourth pin of the second end of the third connection cable.
6. A connection cable applicable to the interface circuit compatible with a plurality of operation modes according to claim 1, wherein the interface circuit connects the RS232 interface through the connection cable to operate as a first operation mode;
the connecting cable comprises a first end connected with the connector and a second end connected with the RS232 interface, a sixth pin of the first end of the connecting cable is connected with a fifth pin and then connected with the second end of the connecting cable, and the second pin, the third pin and the fifth pin of the first end of the connecting cable are correspondingly connected with the second pin, the third pin and the fifth pin of the second end of the connecting cable respectively.
7. A connection cable, applicable to the interface circuit compatible with a plurality of operation modes as claimed in claim 1, wherein the interface circuit is connected to the RS485 interface via the connection cable to operate in a second operation mode;
the connecting cable comprises a first end connected with the connector and a second end connected with the RS485 interface, a sixth pin and a seventh pin of the first end of the connecting cable are both suspended, and the first pin and the second pin of the first end of the connecting cable are respectively and correspondingly connected with the first pin and the second pin of the second end of the connecting cable.
8. A connection cable applicable to the interface circuit compatible with a plurality of operation modes according to claim 1, wherein the interface circuit connects the RS422 interface through the connection cable to operate as a third operation mode;
the connecting cable comprises a first end connected with the connector and a second end connected with the RS422 interface, a sixth pin of the first end of the connecting cable is suspended, a seventh pin of the first end of the connecting cable is connected with a fifth pin of the connecting cable, and the first pin, the second pin, the third pin and the fourth pin of the first end of the connecting cable are correspondingly connected with the first pin, the second pin, the third pin and the fourth pin of the second end of the connecting cable respectively.
9. An electronic device comprising an interface circuit compatible with a plurality of operating modes according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922326187.5U CN211428499U (en) | 2019-12-19 | 2019-12-19 | Interface circuit compatible with multiple working modes, connecting cable and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922326187.5U CN211428499U (en) | 2019-12-19 | 2019-12-19 | Interface circuit compatible with multiple working modes, connecting cable and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211428499U true CN211428499U (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922326187.5U Expired - Fee Related CN211428499U (en) | 2019-12-19 | 2019-12-19 | Interface circuit compatible with multiple working modes, connecting cable and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211428499U (en) |
-
2019
- 2019-12-19 CN CN201922326187.5U patent/CN211428499U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200904 Termination date: 20211219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |