CN201440467U - Serial port line - Google Patents
Serial port line Download PDFInfo
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- CN201440467U CN201440467U CN2009201325594U CN200920132559U CN201440467U CN 201440467 U CN201440467 U CN 201440467U CN 2009201325594 U CN2009201325594 U CN 2009201325594U CN 200920132559 U CN200920132559 U CN 200920132559U CN 201440467 U CN201440467 U CN 201440467U
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- contact
- throw switch
- pole double
- spdt
- pin
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Abstract
The utility model relates to a serial port line, which comprises a port, wherein the port comprises two groups of data lines; one group of the data line is a sending line, and the other group is a receiving line; the port internally comprises a single-pole double-throw switch; a first contact and a fourth contact of the single-pole double-throw switch are simultaneously connected with one of the two groups of data lines; and a second contact and a third contact of the single-pole double-throw switch are simultaneously connected with the other group of data line. With the implementation of the technical scheme, the single-pole double-throw switch can be adopted to select the communication method between devices at the two ends of the serial port line, so as to complete the flexible conversion of the parallel line communication method and the crossed line communication method, thereby saving the cost and being convenient for use.
Description
Technical field
The utility model relates to the communications field, more particularly, relates to a kind of Serial Port Line.
Background technology
Serial ports has boundless application as the basic interface of computer in the communications field.
The RS232 interface is the standard that is used for serial communication by EIA (EIA) associating Bell System, the common formulation of modulator-demodulator producer and terminal manufacturer in 1970.Its full name is " serial binary data exchange interface technical standard between data terminal equipment (DTE) and the data communications equipment (DCE) ", the DB-9 connector of one 9 pin is adopted in this standard code, signal content to each pin of connector is stipulated, also the level of various signals is stipulated.Table 1 is each stitch of DB-9 connector and pairing function thereof, and the used pin of DB-9 is for being these three of 2 (RXD), 3 (TXD), 5 (GND).Therefore all the RS232 interface is called DB-9 now.
Table 1
The DB-9 connector is made up of DB-9 plug and DB-9 socket, and two equipment that connected with the DB-9 connector can be parallel lines communication, also can be cross spider communication, and table 2 shows and adopts communicate by letter with the cross spider corresponding annexation of stitch of parallel lines communication respectively.
Table 2
In July, 1991, ANSI/EIA/TIA568 i.e. " commercial building telecommunications cloth line standard " comes out, and standard 568 comprises standard 568A and standard 568B, and standard 568 is applied in the whole network layout, and table 3 is function pin tables of comparisons of standard 568A and standard 568B.Only use 1,3,2,6 these four lines (just orange is white, orange, green white, green, and corresponding standard 568A and standard 568B line preface get final product respectively) during communication, other 4 can be used as telephone wire, therefore, and to save wiring cost.
Table 3
Usually the equipment that connects the network two ends with the RJ-45 connector, the DJ-45 connector is made up of DJ-45 plug and DJ-45 socket, communication mode between two equipment that connected by the RJ-45 connector can be parallel lines communication, also can be cross spider communication, table 4 shows and adopts communicate by letter with the cross spider corresponding annexation of stitch of parallel lines communication respectively.
Table 4
In different application, two equipment rooms need to use parallel lines to communicate sometimes, and need sometimes to communicate with cross spider.There are single parallel lines or single cross spider to sell now on the market, but when not knowing that equipment needs parallel lines or cross spider communication, just need buy parallel lines and a cross spider respectively.Like this, one, need spend double money to remove to buy Serial Port Line; Two, need in use to attempt respectively,, also will change another root if not right.
The utility model content
The technical problems to be solved in the utility model is, the defective at the above-mentioned Serial Port Line of prior art can not compatible parallel lines communication be communicated by letter with cross spider provides a kind of energy Serial Port Line that compatible parallel lines communication is communicated by letter with cross spider.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of Serial Port Line, comprise interface, described interface comprises two groups of data wires, wherein, one group is the transmission line, and another group comprises single-pole double-throw switch (SPDT) for receiving line in the described interface, the 1st contact of described single-pole double-throw switch (SPDT), the 4th contact connect wherein a group of described data wire simultaneously, and the 2nd contact of described single-pole double-throw switch (SPDT), the 3rd contact connect other a group of described data wire simultaneously.
In Serial Port Line described in the utility model, described interface is the DB-9 plug.
In Serial Port Line described in the utility model, the 1st contact of described single-pole double-throw switch (SPDT), the 4th contact connect the 2nd pin of DB-9 plug respectively, and the 2nd contact of described single-pole double-throw switch (SPDT), the 3rd contact connect the 3rd pin of DB-9 plug respectively.
In Serial Port Line described in the utility model, the 1st contact of described single-pole double-throw switch (SPDT), the 4th contact connect the 3rd pin of DB-9 plug respectively, and the 2nd contact of described single-pole double-throw switch (SPDT), the 3rd contact connect the 2nd pin of DB-9 plug respectively.
In Serial Port Line described in the utility model, described interface is the RJ-45 plug, and described single-pole double-throw switch (SPDT) is two.
In Serial Port Line described in the utility model, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 2nd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 3rd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 1st pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 6th pin of RJ-45 plug respectively.
In Serial Port Line described in the utility model, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 3rd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 2nd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 6th pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 1st pin of RJ-45 plug respectively.
In Serial Port Line described in the utility model, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 2nd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 3rd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 6th pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 1st pin of RJ-45 plug respectively.
In Serial Port Line described in the utility model, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 3rd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 2nd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 1st pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 6th pin of RJ-45 plug respectively.
Implement the technical solution of the utility model,, can select the communication mode of the equipment room at Serial Port Line two ends, finish the flexible conversion of parallel lines communication and cross spider communication mode, saved cost, also made things convenient for use by switching single-pole double-throw switch (SPDT).
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of the utility model Serial Port Line first embodiment;
Fig. 2 is the structural representation of the utility model Serial Port Line second embodiment.
Embodiment
As shown in Figure 1, in Serial Port Line first embodiment of the present utility model, the interface of Serial Port Line is the DB-9 plug, what match with the DB-9 plug is the DB-9 socket, select parallel lines communication or cross spider communication by stirring single-pole double-throw switch (SPDT), in the embodiment shown in fig. 1, the 1st contact of single-pole double-throw switch (SPDT), the 4th contact connect the reception line RXD (2) of DB-9 plug simultaneously, and the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the transmission line TXD (3) of DB-9 plug simultaneously.
When the contact on the left side position of single-pole double-throw switch (SPDT), when promptly the contact two ends were connected the 1st contact, the 3rd contact respectively, the reception line RXD (2) of DB-9 plug connected the reception line RXD (2) of DB-9 socket; The transmission line TXD (3) of DB-9 plug connects the transmission line TXD (3) of DB-9 socket, and at this moment, the equipment room at the two ends that the DB-9 plug and socket is connected is parallel lines communications.
When the contact of single-pole double-throw switch (SPDT) position on the right, when promptly the contact two ends were connected the 2nd contact, the 4th contact respectively, the reception line RXD (2) of DB-9 plug connected the transmission line TXD (3) of DB-9 socket; The transmission line TXD (3) of DB-9 plug connects the reception line RXD (2) of DB-9 socket, and at this moment, the equipment room at the two ends that the DB-9 plug and socket is connected is cross spider communication.
Just can select the communication mode of the equipment room at the two ends that the DB-9 plug and socket connected by stirring single-pole double-throw switch (SPDT), parallel lines communication with switch between cross spider is communicated by letter.
As a kind of distortion of first embodiment of the present utility model, the 1st contact of single-pole double-throw switch (SPDT), the 4th contact connect the transmission line TXD (3) of DB-9 simultaneously, and the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the reception line RXD (2) of DB-9 simultaneously.The operation principle of above connected mode and embodiment one are similar, do not give unnecessary details inferior.
Fig. 2 shows the structure chart of the 3rd embodiment of the utility model Serial Port Line, the interface of Serial Port Line is the RJ-45 plug, what match with the RJ-45 plug is Registered Jack-45, select parallel lines communication or cross spider communication by stirring two single-pole double-throw switch (SPDT)s, in Fig. 2, the 1st contact of single-pole double-throw switch (SPDT) DP1, the 4th contact connects the transmission line TX-(2) of DJ-45 plug simultaneously, the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connects the reception line RX+ (3) of DJ-45 simultaneously, the 1st contact of single-pole double-throw switch (SPDT) DP2, the 4th contact connects the transmission line TX+ (1) of DJ-45 plug, the 2nd contact of single-pole double-throw switch (SPDT) simultaneously, the 3rd contact connects the reception line RX-(6) of DJ-45 simultaneously.
Contact while on the left side position as single-pole double-throw switch (SPDT) DP1, DP2, be that the contact two ends are when connecting the 1st contact, the 3rd contact respectively, the transmission line TX-(2) of DJ-45 plug connects the transmission line TX-(2) of DJ-45 interface, and the transmission line TX+ (1) of DJ-45 plug connects the transmission line TX+ (1) of DJ-45 interface; The reception line RX+ (3) of DJ-45 plug connects the reception line RX+ (3) of DJ-45 interface, the reception line RX-(6) of DJ-45 plug connects the reception line RX-(6) of DJ-45 interface, at this moment, the equipment room at the two ends that connected of DJ-45 plug and socket is parallel lines communications.
When the contact of single-pole double-throw switch (SPDT) DP1, DP2 position on the right, be that the contact two ends are when connecting the 2nd contact, the 4th contact respectively, the transmission line TX-(2) of DJ-45 plug connects the reception line RX+ (3) of DJ-45 interface, and the transmission line TX+ (1) of DJ-45 plug connects the reception line RX-(6) of DJ-45 interface; The reception line RX+ (3) of DJ-45 plug connects the transmission line TX-(2) of DJ-45 interface, the reception line RX-(6) of DJ-45 plug connects the transmission line TX+ (1) of DJ-45 interface, at this moment, the equipment room at the two ends that are connected with interface of DJ-45 plug is cross spider communication.
Just can select the communication mode of the equipment room at the two ends that the DJ-45 plug is connected with interface by stirring single-pole double-throw switch (SPDT), parallel lines communication with switch between cross spider is communicated by letter.
A kind of distortion as the 3rd embodiment, the 1st contact of single-pole double-throw switch (SPDT) DP1, the 4th contact connect the reception line RX+ (3) of DJ-45 plug simultaneously, the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the transmission line TX-(2) of DJ-45 simultaneously, the 1st contact of single-pole double-throw switch (SPDT) DP2, the 4th contact connect the reception line RX-(6) of DJ-45 plug simultaneously, the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the transmission line TX+ (1) of DJ-45 simultaneously, the operation principle of above connected mode and embodiment two are similar, do not give unnecessary details inferior.
Second kind of distortion as the 3rd embodiment, the 1st contact of single-pole double-throw switch (SPDT) DP1, the 4th contact connect the transmission line TX-(2) of DJ-45 plug simultaneously, the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the reception line RX+ (3) of DJ-45 simultaneously, the 1st contact of single-pole double-throw switch (SPDT) DP2, the 4th contact connect the reception line RX-(6) of DJ-45 plug simultaneously, the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the transmission line TX+ (1) of DJ-45 simultaneously, the operation principle of above connected mode and embodiment two are similar, do not give unnecessary details inferior.
The third distortion as the 3rd embodiment, the 1st contact of single-pole double-throw switch (SPDT) DP1, the 4th contact connect the reception line RX+ (3) of DJ-45 plug simultaneously, the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the transmission line TX-(2) of DJ-45 simultaneously, the 1st contact of single-pole double-throw switch (SPDT) DP2, the 4th contact connect the transmission line TX+ (1) of DJ-45 plug simultaneously, the 2nd contact of single-pole double-throw switch (SPDT), the 3rd contact connect the reception line RX-(6) of DJ-45 simultaneously, the operation principle of above connected mode and embodiment two are similar, do not give unnecessary details inferior.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (9)
1. Serial Port Line, comprise interface, described interface comprises two groups of data wires, wherein, one group is the transmission line, and another group is for receiving line, it is characterized in that, comprise single-pole double-throw switch (SPDT) in the described interface, the 1st contact of described single-pole double-throw switch (SPDT), the 4th contact connect wherein a group of described data wire simultaneously, and the 2nd contact of described single-pole double-throw switch (SPDT), the 3rd contact connect other a group of described data wire simultaneously.
2. Serial Port Line according to claim 1 is characterized in that, described interface is the DB-9 plug.
3. Serial Port Line according to claim 2 is characterized in that, the 1st contact of described single-pole double-throw switch (SPDT), the 4th contact connect the 2nd pin of DB-9 plug respectively, and the 2nd contact of described single-pole double-throw switch (SPDT), the 3rd contact connect the 3rd pin of DB-9 plug respectively.
4. Serial Port Line according to claim 2 is characterized in that, the 1st contact of described single-pole double-throw switch (SPDT), the 4th contact connect the 3rd pin of DB-9 plug respectively, and the 2nd contact of described single-pole double-throw switch (SPDT), the 3rd contact connect the 2nd pin of DB-9 plug respectively.
5. Serial Port Line according to claim 1 is characterized in that, described interface is the RJ-45 plug, and described single-pole double-throw switch (SPDT) is two.
6. Serial Port Line according to claim 5 is characterized in that, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 2nd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 3rd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 1st pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 6th pin of RJ-45 plug respectively.
7. Serial Port Line according to claim 5 is characterized in that, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 3rd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 2nd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 6th pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 1st pin of RJ-45 plug respectively.
8. Serial Port Line according to claim 5 is characterized in that, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 2nd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 3rd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 6th pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 1st pin of RJ-45 plug respectively.
9. Serial Port Line according to claim 5 is characterized in that, the 1st contact of one of them single-pole double-throw switch (SPDT), the 4th contact connect the 3rd pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 2nd pin of RJ-45 plug respectively; The 1st contact of another single-pole double-throw switch (SPDT), the 4th contact connect the 1st pin of RJ-45 plug respectively, and its 2nd contact, the 3rd contact connect the 6th pin of RJ-45 plug respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201325594U CN201440467U (en) | 2009-06-05 | 2009-06-05 | Serial port line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201325594U CN201440467U (en) | 2009-06-05 | 2009-06-05 | Serial port line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201440467U true CN201440467U (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201325594U Expired - Fee Related CN201440467U (en) | 2009-06-05 | 2009-06-05 | Serial port line |
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| Country | Link |
|---|---|
| CN (1) | CN201440467U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377085A (en) * | 2010-08-09 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Serial port transmission device |
| CN103107467A (en) * | 2013-01-10 | 2013-05-15 | 无锡科技职业学院 | Controllable dual-function serial port line structure |
| CN104407191A (en) * | 2014-12-01 | 2015-03-11 | 江西洪都航空工业集团有限责任公司 | Conversion device of data acquisition system |
| CN106785754A (en) * | 2016-12-28 | 2017-05-31 | 桂林电子科技大学 | Intersect direct-connected changeable Serial Port Line |
-
2009
- 2009-06-05 CN CN2009201325594U patent/CN201440467U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377085A (en) * | 2010-08-09 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Serial port transmission device |
| CN103107467A (en) * | 2013-01-10 | 2013-05-15 | 无锡科技职业学院 | Controllable dual-function serial port line structure |
| CN104407191A (en) * | 2014-12-01 | 2015-03-11 | 江西洪都航空工业集团有限责任公司 | Conversion device of data acquisition system |
| CN104407191B (en) * | 2014-12-01 | 2017-05-17 | 江西洪都航空工业集团有限责任公司 | Conversion device of data acquisition system |
| CN106785754A (en) * | 2016-12-28 | 2017-05-31 | 桂林电子科技大学 | Intersect direct-connected changeable Serial Port Line |
| CN106785754B (en) * | 2016-12-28 | 2022-07-22 | 桂林电子科技大学 | Cross direct-connection switchable serial port line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20140605 |