CN201590833U - Multifunctional ethernet interface device - Google Patents
Multifunctional ethernet interface device Download PDFInfo
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- CN201590833U CN201590833U CN2010200029295U CN201020002929U CN201590833U CN 201590833 U CN201590833 U CN 201590833U CN 2010200029295 U CN2010200029295 U CN 2010200029295U CN 201020002929 U CN201020002929 U CN 201020002929U CN 201590833 U CN201590833 U CN 201590833U
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Abstract
The utility model relates to a multifunctional Ethernet interface device which comprises an RJ45 interface that comprises seven pins, wherein the four pins are connected with a PHY chip to form a 10M/100M network port, and the rest three pins are connected with a serial port chip to form an RS232 serial port. When four signal wires of the 10M/100M network port are connected with the RJ45 interface, two signal wires of the RS232 serial port and an earth wire are connected with a pin reserved on the RJ45 interface, so that the 10M/100M network port and the RS232 serial port can be simultaneously extracted out from the RJ45 interface. The multifunctional Ethernet interface device not only effectively solves the contradiction that the space of an external interface of equipment is limited, and the space of the RS232 serial port is even not arranged, and meets the demand of hiding the RS232 serial port used for debugging from the user for misoperation prevention or equipment beauty; and simultaneously, the multifunctional Ethernet interface device reduces a serial port connector of the equipment, and reduces the occupied PCB space and the production cost. In addition, due to the line sequence design, the multifunctional Ethernet interface device not only guarantees the work reliability, but also ensures the using safety.
Description
Technical field
The utility model relates to the interface arrangement that uses in a kind of ethernet communication, particularly relates to a kind of multi-functional Ethernet interface device.
Background technology
Along with development of integrated circuits, the function of chip from strength to strength, the volume of respective electronic equipment is more and more littler, the space of leaving external interface on the equipment for is more and more limited.Under this development trend, the always preferential interface that guarantees to provide business in limited space, interfaces such as Ru Guangkou, E1/T1 and 10M/100M network interface, and it is more and more littler to leave the space of debugging with the RS232 serial ports for, even do not have installing space.But for device fabrication and debugging, in order to guarantee the quality of production and equipment performance, it is necessary that the RS232 serial ports is set.At present, prior art adopts the increase equipment volume to solve this contradiction usually.
In addition, for some equipment that rich space mounting RS232 serial ports is arranged, the user uses the RS232 serial ports misoperation to occur in the equipment operation, or attractive in appearance and succinct for equipment, need be when equipment dispatches from the factory that the RS232 serial ports is hidden.Obviously, in order to debug serial ports connector of special introducing, not only occupied PCB (Printed Circuit Board) space, and increased production cost.
The utility model content
The technical problems to be solved in the utility model provides a kind of multi-functional Ethernet interface device, and a 10M/100M network interface and a RS232 serial ports can be provided simultaneously.
For solving the problems of the technologies described above, the utility model provides a kind of multi-functional Ethernet interface device, comprise the RJ45 interface, described RJ45 interface comprises with the PHY chip and is connected to form four pins of 10M/100M network interface and is connected to form three pins of RS232 serial ports with serial port chip.
Further, four pins of described formation 10M/100M network interface are: first pin is for sending the positive signal pin, and second pin is for sending the negative signal pin, and three-prong is for receiving the positive signal pin, and the 6th pin is for receiving the negative signal pin.
On the technique scheme basis, three pins of described formation RS232 serial ports can for: the 4th pin is for sending data pins, and the 7th pin is for receiving data pins, and the 8th pin is the signal ground pin.
Three pins of described formation RS232 serial ports also can for: the 4th pin is for sending data pins, and the 7th pin is the signal ground pin, and the 8th pin is for receiving data pins.
Three pins of described formation RS232 serial ports also can for: the 5th pin is for sending data pins, and the 7th pin is for receiving data pins, and the 8th pin is the signal ground pin.
Three pins of described formation RS232 serial ports also can for: the 5th pin is for sending data pins, and the 7th pin is the signal ground pin, and the 8th pin is for receiving data pins.
Three pins of described formation RS232 serial ports also can for: the 4th pin is for receiving data pins, and the 5th pin is the signal ground pin, and the 7th pin is for sending data pins.
Three pins of described formation RS232 serial ports also can for: the 4th pin is the signal ground pin, and the 5th pin is for receiving data pins, and the 7th pin is for sending data pins.
Three pins of described formation RS232 serial ports also can for: the 4th pin is for receiving data pins, and the 5th pin is the signal ground pin, and the 8th pin is for sending data pins.
Three pins of described formation RS232 serial ports also can for: the 4th pin is the signal ground pin, and the 5th pin is for receiving data pins, and the 8th pin is for sending data pins.
The utility model provides a kind of multi-functional Ethernet interface device, when 4 holding wires of 10M/100M network interface are connected to the RJ45 interface, 2 holding wires of RS232 serial ports and ground wire are connected on the pin that the RJ45 interface reserves, have realized that a RJ45 interface draws a 10M/100M network interface and a RS232 serial ports simultaneously.It is limited even the contradiction in RS232 serial ports space is not set that the utility model not only efficiently solves equipment external interface space, and satisfied for preventing that misoperation or equipment needs attractive in appearance are to the demand of the hidden debugging of user with the RS232 serial ports, the utility model has reduced a serial ports connector of equipment simultaneously, reduce to occupy the PCB space, reduced production cost.In addition, the design of the utility model line preface had both guaranteed functional reliability, had ensured the fail safe of using again.
Description of drawings
Fig. 1 is the syndeton schematic diagram of multi-functional Ethernet interface device first embodiment of the utility model.
Fig. 2 is the syndeton schematic diagram of multi-functional Ethernet interface device second embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme of the utility model embodiment is described in further details.
The multi-functional Ethernet interface device of the utility model adopts the employed RJ45 interface of Ethernet interface that meets the IEEE802.3 standard, to realize better generality.The RJ45 interface has 8 (four pairs) pins, as the 10M/100M network interface time, prior art has only used 4 (two pairs) pins to receive and send signal, wherein two are used as transmission positive signal TX+ (Tranceive Data+) and send negative signal TX-(Tranceive Data-), two as receiving positive signal RX+ (Receive Data+) and receive negative signal RX-(Receive Data-), other four pins reservations.And 9 pin type RS232 serial ports that use as debugging only need and receive data pins RXD (Receive Data), send data pins TXD (Tranceive Data) and signal ground pin GND (Ground).Utilize existing structure, four pins that the utility model will have the reservation of RJ45 interface now use, 2 holding wires and 1 earth connection of RS232 serial ports are connected on the pin of RJ45 interface reservation, like this in a RJ45 interface, a 10M/100M network interface and a RS232 serial ports can be provided, and the multi-functional Ethernet interface of realization the utility model is drawn a 10M/100M network interface and a RS232 serial ports simultaneously.
Fig. 1 is the syndeton schematic diagram of multi-functional Ethernet interface device first embodiment of the utility model.As shown in Figure 1, the multi-functional Ethernet interface device main body of present embodiment structure comprises a RJ45 interface 10, first pin one of RJ45 interface 10, second pin two, three-prong 3 and the 6th pin 6 are connected with PHY chip 30 on the wiring board by transformer 20, form the 10M/100M network interface, wherein first pin one and second pin two are used for the signal transmission, first pin one is for sending positive signal TX+ pin, second pin two is for sending negative signal TX-pin, three-prong 3 and the 6th pin 6 are used for signal and receive, three-prong 3 is for receiving positive signal RX+ pin, and the 6th pin 6 is for receiving negative signal RX-pin.The 4th pin 4, the 7th pin 7 and the 8th pin 8 of RJ45 interface 10 is connected with the serial port chip 40 on the wiring board, form the RS232 serial ports, wherein the 4th pin 4 is for sending data pins TXD, and the 7th pin 7 is for receiving data pins RXD, and the 8th pin 8 is signal ground pin GND; Perhaps the 4th pin 4 is for sending data pins TXD, and the 7th pin 7 is signal ground pin GND, and the 8th pin 8 is for receiving data pins RXD.
Like this, present embodiment can realize that three kinds connect and occupation mode:
(1) line of equipment side and user side is the direct-connected CAT5 netting twine of a standard, and two RJ45 connectors of equipment side and user side all are standing procedures, after the RJ45 interface is plugged this netting twine, is the ethernet channel of 1 10M/100M between equipment and the user.
(2) line of equipment side and user side be one with the transformed netting twine of the direct-connected CAT5 netting twine of standard, the RJ45 connector of equipment side is a standing procedure, 3 lines of the RJ45 connector of user side are connected to the DB9 serial port joint, all the other 5 lines are unsettled, after the RJ45 interface is plugged this netting twine, between equipment and the user 1 serial ports passage;
(3) line of equipment side and user side be one with the transformed netting twine of the direct-connected CAT5 netting twine of standard, the RJ45 connector of equipment side is a standing procedure, two pairs of 10/100M differential pairs of the crystal head crimping of user side, remaining 3 line is connected to the DB9 serial port joint, after the RJ45 interface is plugged this netting twine, between equipment and the user 1 10M/100M ethernet channel and 1 serial ports passage.
Present embodiment provides a kind of multi-functional Ethernet interface device, when 4 holding wires of 10M/100M network interface are connected to the RJ45 interface, 3 pins in 4 pins utilize reserving are provided with 2 holding wires and the ground wire of RS232 serial ports, have realized that a RJ45 interface draws a 10M/100M network interface and a RS232 serial ports simultaneously.It is limited even the contradiction in RS232 serial ports space is not set that the utility model not only efficiently solves equipment external interface space, and satisfied for preventing that misoperation or equipment needs attractive in appearance are to the demand of the hidden debugging of user with the RS232 serial ports, the utility model has reduced a serial ports connector of equipment simultaneously, reduce to occupy the PCB space, reduced production cost.
Obviously, present embodiment also can adopt the technical scheme that the serial port chip 40 on the 5th pin 5, the 7th pin 7 and the 8th pin 8 and the wiring board of RJ45 interface 10 is connected to form the RS232 serial ports.Wherein, the 5th pin 5 is for sending data pins TXD, and the 7th pin 7 is for receiving data pins RXD, and the 8th pin 8 is signal ground pin GND; Perhaps the 5th pin 5 is for sending data pins TXD, and the 7th pin 7 is signal ground pin GND, and the 8th pin 8 is for receiving data pins RXD.
Fig. 2 is the syndeton schematic diagram of multi-functional Ethernet interface device second embodiment of the utility model.As shown in Figure 2, the agent structure of present embodiment and aforementioned first embodiment are basic identical, and different is the line preface that has changed the RS232 serial ports.Particularly, the 4th pin 4, the 5th pin 5 and the 7th pin 7 of present embodiment RJ45 interface 10 is connected with the serial port chip 40 on the wiring board, form the RS232 serial ports, wherein the 4th pin 4 is for receiving data pins RXD, the 5th pin 5 is signal ground pin GND, and the 7th pin 7 is for sending data pins TXD; Perhaps the 4th pin 4 is signal ground pin GND, and the 5th pin 5 is for receiving data pins RXD, and the 7th pin 7 is for sending data pins TXD.Obviously, the 7th pin 7 of present embodiment also can replace with the 8th pin 8.
In implementing the utility model process, the inventor has carried out scientific design by analyzing to line preface of the present utility model, has both guaranteed functional reliability, has ensured the fail safe of using again.
Existing serial port chip output short circuit current is bigger, such as more present serial port chip output short circuit current maximums is 60mA, and the long-term short circuit work of output damages serial port chip easily or reduces its life-span, when therefore the serial ports output is connected with external equipment by RJ45, can not produce the loop with ground.On the other hand, the RJ45 netting twine is mispluged into the gigabit Ethernet mouth by the user easily, and 4/5 and 7/8 two pair of twisted-pair feeder of gigabit Ethernet mouth is a direct-current short circuit in Ethernet transformer the inside, if output with when being distributed on a pair of twisted-pair feeder differential pair (as 4/5 or 7/8), after mispluging the gigabit network interface, can cause the output short circuit.
Comprehensive above factor, the utility model is at design the 4th pin 4/ the 5th pin 5, when the 7th pin 7/ the 8th pin 8 differential pair pins are done the serial ports pin, with wherein a pin of one group is separately as sending data pins TXD, a pair of in addition twisted-pair feeder is as receiving data pins RXD and signal ground pin GND.So just output is distributed on the different twisted-pair feeder differential pairs with ground, on the one hand output and can not produce the loop, after mispluging the gigabit network interface, can not cause the output short circuit on the other hand yet.
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 protection range of the present utility model.
Claims (10)
1. a multi-functional Ethernet interface device comprises the RJ45 interface, it is characterized in that, described RJ45 interface comprises with the PHY chip and is connected to form four pins of 10M/100M network interface and is connected to form three pins of RS232 serial ports with serial port chip.
2. multi-functional Ethernet interface device as claimed in claim 1, it is characterized in that, four pins of described formation 10M/100M network interface are: first pin is for sending the positive signal pin, second pin is for sending the negative signal pin, three-prong is for receiving the positive signal pin, and the 6th pin is for receiving the negative signal pin.
3. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that, three pins of described formation RS232 serial ports are: the 4th pin is for sending data pins, and the 7th pin is for receiving data pins, and the 8th pin is the signal ground pin.
4. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that: three pins of described formation RS232 serial ports are: the 4th pin is for sending data pins, and the 7th pin is the signal ground pin, and the 8th pin is for receiving data pins.
5. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that, three pins of described formation RS232 serial ports are: the 5th pin is for sending data pins, and the 7th pin is for receiving data pins, and the 8th pin is the signal ground pin.
6. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that, three pins of described formation RS232 serial ports are: the 5th pin is for sending data pins, and the 7th pin is the signal ground pin, and the 8th pin is for receiving data pins.
7. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that, three pins of described formation RS232 serial ports are: the 4th pin is for receiving data pins, and the 5th pin is the signal ground pin, and the 7th pin is for sending data pins.
8. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that, three pins of described formation RS232 serial ports are: the 4th pin is the signal ground pin, and the 5th pin is for receiving data pins, and the 7th pin is for sending data pins.
9. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that, three pins of described formation RS232 serial ports are: the 4th pin is for receiving data pins, and the 5th pin is the signal ground pin, and the 8th pin is for sending data pins.
10. multi-functional Ethernet interface device as claimed in claim 1 or 2 is characterized in that, three pins of described formation RS232 serial ports are: the 4th pin is the signal ground pin, and the 5th pin is for receiving data pins, and the 8th pin is for sending data pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200029295U CN201590833U (en) | 2010-01-20 | 2010-01-20 | Multifunctional ethernet interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200029295U CN201590833U (en) | 2010-01-20 | 2010-01-20 | Multifunctional ethernet interface device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590833U true CN201590833U (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200029295U Expired - Fee Related CN201590833U (en) | 2010-01-20 | 2010-01-20 | Multifunctional ethernet interface device |
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| Country | Link |
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| CN (1) | CN201590833U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497455A (en) * | 2011-12-03 | 2012-06-13 | 南京南瑞继保电气有限公司 | Data communication interface physically fusing 100M Ethernet interface and serial port |
| CN103701660A (en) * | 2013-12-20 | 2014-04-02 | 上海斐讯数据通信技术有限公司 | Ethernet equipment connection device and testing system and method applied thereby |
| WO2021037026A1 (en) * | 2019-08-27 | 2021-03-04 | 中兴通讯股份有限公司 | Communication device panel interface and communication device |
| CN114090486A (en) * | 2021-11-24 | 2022-02-25 | 南京合智电力科技有限公司 | Ethernet and USB integrated communication interface |
-
2010
- 2010-01-20 CN CN2010200029295U patent/CN201590833U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497455A (en) * | 2011-12-03 | 2012-06-13 | 南京南瑞继保电气有限公司 | Data communication interface physically fusing 100M Ethernet interface and serial port |
| CN103701660A (en) * | 2013-12-20 | 2014-04-02 | 上海斐讯数据通信技术有限公司 | Ethernet equipment connection device and testing system and method applied thereby |
| CN103701660B (en) * | 2013-12-20 | 2018-01-02 | 上海斐讯数据通信技术有限公司 | A kind of ethernet device attachment means and its test system and method for application |
| WO2021037026A1 (en) * | 2019-08-27 | 2021-03-04 | 中兴通讯股份有限公司 | Communication device panel interface and communication device |
| CN112448820A (en) * | 2019-08-27 | 2021-03-05 | 中兴通讯股份有限公司 | Communication equipment panel interface and communication equipment |
| CN114090486A (en) * | 2021-11-24 | 2022-02-25 | 南京合智电力科技有限公司 | Ethernet and USB integrated communication interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20190120 |