CN2689606Y - Network interface devices - Google Patents
Network interface devices Download PDFInfo
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- CN2689606Y CN2689606Y CN 200420047824 CN200420047824U CN2689606Y CN 2689606 Y CN2689606 Y CN 2689606Y CN 200420047824 CN200420047824 CN 200420047824 CN 200420047824 U CN200420047824 U CN 200420047824U CN 2689606 Y CN2689606 Y CN 2689606Y
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- network interface
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Abstract
The utility model discloses a network interface device, which comprises a network interface connecting an ethernet connecting cable with a network controlling module and at least four double-throw switches. The fixed ends of the four double-throw switches are respectively connected with the TxD(+), TxD(-), RxD(+) and RxD(-) ends of the network interface, and wherein, the corresponding switching contact point of every fixed end is ordinally connected with the TxD(+) end, the TxD(-) and RxD(-) end, the RxD(+) and TxD(+) end and the RxD(-) and TxD(-) end of the network controlling module. By the adopting the network interface device of the utility model, devices such as a computer can be connected with an HUB, an exchanger, etc. via an ordinary network cable and can be directly connected with another device with ordinary network interfaces conveniently without making a direct network cable.
Description
Technical field
The utility model relates to computer ethernet technology field, is meant a kind of Network Interface Unit that can the switching network connected mode especially.
Background technology
Along with the reduction of development of computer and computer prices, computer has spread to medium-sized and small enterprises and average family gradually by the special equipment of scientific research institution and large enterprises.And along with the popularizing of computer application, people have more and more felt the necessity of computerized information intercommunication, promote to have gone the development of network interconnection technique thus.The appearance of ethernet technology, particularly the transmission speed of Ethernet is brought up to the reduction gradually of 100M and networking cost by 10M, make that network application has obtained popularizing in large, medium-sized enterprises gradually, computer has also become the equipment that need often carry out information exchange from original information island.Therefore computer vendors is all regarded basic, necessary configuration as having network interface at present on Computer Design.
Generally speaking, Ethernet adopts the RJ45 connector, and this connector has 8 contacts, and each contact is defined as follows:
| The contact | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Signal | TxD(+) | TxD(-) | RxD(+) | Need not | Need not | RxD(-) | Need not | Need not |
Table 1
In the table 1: TxD (+), TxD (-) represent that this contact is a signal receiving end; RxD (+), RxD (-) represent that this contact is a signal sending end; " need not " represent that this contact is inoperative in signals transmission.That table 1 provides is a kind of of connected mode, also the connected mode that can adopt other to put in order.
Usually, the connection of two computers must be connected to hub (HUB) or switch by netting twine by a computer, draws netting twine by HUB or switch again and is connected to another computer.This connected mode is referring to shown in Figure 1, the network interface card of a computer, link to each other with HUB by twisted-pair feeder, HUB can intersect connecting line, and the TxD (+) of a computer is linked to each other with the RxD (+) of another computer, and TxD (-) links to each other with the RxD (-) of another computer, RxD (-) links to each other with the TxD (-) of another computer, RxD (+) links to each other with the TxD (+) of another computer, thereby guarantees that line one end is the signal transmitting terminal, and the other end is a signal receiving end.
This network is used very general in large and medium-sized enterprise, also very convenient, but for small business, domestic consumer or some experimental enviroments, have a desktop computer and a notebook as one family, need between the two to carry out transfer of data, or need to carry out the situation of transfer of data between breadboard two computers.Because the negligible amounts of computer generally is not equipped with HUB or switch, or is not easy in some cases carry out exchanges data by network, and the exchanges data amount is bigger, at this moment, generally needs to make special direct-connected line, two computers are directly coupled together, carry out exchanges data.
The production method of direct-connected line is referring to shown in Figure 2, by putting in order of circuit on the RJ45 joint of two ends switched accordingly, TxD (+), TxD (-), RxD (+) and the RxD (-) of direct-connected line one end RJ45 joint are connected successively with RxD (+), RxD (-), TxD (+) and the TxD (-) of other end RJ45 joint.
But because direct-connected line does not generally use at ordinary times, be difficult on the market buy, need interim the making if use, but domestic consumer does not generally possess the condition of making direct-connected line again, look for businessman to make again comparatively trouble or have little time, therefore, cause very big inconvenience for user's use.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of Network Interface Unit, makes the equipment such as computer that this Network Interface Unit is installed need not to adopt the direct-connected line of special making can realize being connected with the direct of equipment such as other computers.
The utility model discloses a kind of Network Interface Unit, comprise the network interface that is used for the Ethernet connecting line is connected to network control module, further comprise:
At least four commutators, the stiff end of these four commutators connect TxD (+), TxD (-), RxD (+) and RxD (-) end of described network interface respectively; Wherein,
Two double-throw contacts of the commutator that stiff end is connected with TxD (+) end of described network interface are connected to the TxD (+) and RxD (+) end of described network control module respectively;
Two double-throw contacts of the commutator that stiff end is connected with TxD (-) end of described network interface are connected to the TxD (-) and RxD (-) end of described network control module respectively;
Two double-throw contacts of the commutator that stiff end is connected with RxD (+) end of described network interface are connected to the RxD (+) and TxD (+) end of described network control module respectively;
Two double-throw contacts of the commutator that stiff end is connected with RxD (-) end of described network interface are connected to the RxD (-) and TxD (-) end of described network control module respectively.
Four commutators described in this Network Interface Unit are for carrying out the interlock commutator of change action synchronously, and two switching positions of this interlock commutator are respectively:
Position one, described four the stiff end TxD (+) that are connected with network interface, TxD (-), RxD (+) and RxD (-) are connected to the double-throw contact that is connected with TxD (+), TxD (-), RxD (+) and RxD (-) end of described network control module successively respectively;
Position two, described four the stiff end TxD (+) that are connected with network interface, TxD (-), RxD (+) and RxD (-) are connected to the double-throw contact that is connected with RxD (+), RxD (-), TxD (+) and TxD (-) end of described network control module successively respectively.
The commutator of interlock described in this Network Interface Unit is a relay, this relay comprises: at least four inputs and eight outputs, four inputs are connected with described network interface as four stiff ends of described interlock commutator, and eight outputs are connected with described network control module as the double-throw contact of described interlock commutator.
Relay described in this Network Interface Unit is an electromagnetic induction relay.
This Network Interface Unit further comprises: the toggle switch control circuit, this toggle switch control circuit comprises a double-throw toggle switch and a triode at least, in two switching points of described double-throw toggle switch one is connected with high level, another ground connection, the stiff end of this double-throw toggle switch is connected with the base stage of described triode, the collector electrode of this triode is connected with high level, and the emitter of this triode is connected to the control end of described relay.
This Network Interface Unit is arranged on the computer equipment mainboard at described network control module place, and described high level is connected to the power supply of this mainboard.
Double-throw toggle switch described in this Network Interface Unit is arranged on the cabinet rear portion of computer equipment.
The commutator of interlock described in this Network Interface Unit is the mechanical linkage commutator.
Network interface described in this Network Interface Unit is the RJ45 interface.
From above as can be seen, a kind of Network Interface Unit that the utility model provides is provided with the multitool commutator therein by common RJ45 interface is transformed, and makes between the receiving terminal of RJ45 interface and the transmitting terminal to switch arbitrarily.And by the conversion between these two kinds of patterns, computer or miscellaneous equipment that this Network Interface Unit is installed promptly can be connected with equipment such as HUB, switches by common netting twine, and also can directly be connected with another equipment easily, and need not to make especially direct-connected line with general network interface.Thereby the cost by minute quantity is paid, and greatly facilitates user's use.
Description of drawings
Fig. 1 adopts the structural representation of HUB connected mode for the prior art computer;
Fig. 2 is the connected mode structural representation of the direct-connected line of prior art;
Fig. 3 is the structural representation of the utility model Network Interface Unit;
Fig. 4 is the circuit system schematic diagram of the utility model preferred embodiment Network Interface Unit;
Fig. 5 is the execution mode schematic diagram of the utility model preferred embodiment Network Interface Unit.
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is further described in more detail.
Be easy to find because two ends have the common netting twine of RJ45 joint,, then will bring great convenience to the user if can adopt this common netting twine to realize that directly two computers link to each other.But for common netting twine, on its twisted-pair feeder two ends RJ45 joint signal send and receiving terminal put in order identical, therefore, adopt two computers of general network interface, when directly not using netting twine to connect by HUB, because the signal sending end of a computer network interface is not directly to link to each other with the signal receiving end of another computer network interface, thereby can not guarantee the normal delivery of signal at two intercomputers.
Therefore, if want to use common netting twine to realize the direct connection of two computers, then need network interface is carried out brand-new design.Referring to shown in Figure 3, the utility model is provided with a multitool interlock commutator K at the network interface place, by stirring the conversion of this multitool interlock commutator K realization RJ45 interface connected mode.This multitool interlock commutator K is made up of at least four commutators of carrying out change action synchronously, when stirring multitool interlock commutator K at default location, the TxD (+) of RJ45 interface, TxD (-), RxD (+) and RxD (-) link to each other with TxD (+), TxD (-), RxD (+) and RxD (-) input of network controller in the computer network interface card respectively successively, and this moment, the computer network interface card was worked in normal mode; When multitool interlock commutator K toggles it to associated mode, the TxD (+) of RJ45 interface, TxD (-), RxD (+) and RxD (-) link to each other with RxD (+), RxD (-), TxD (+) and the TxD (-) of network controller in the computer network interface card respectively successively, can use this moment common netting twine to realize the network direct connection of two computers.
The circuit system schematic diagram of the utility model preferred embodiment Network Interface Unit is referring to shown in Figure 4.Adopt microminiature solid state relay K1 as the multitool commutator that links, and further comprise the toggle switch control circuit of forming by triode Q1 and two-way toggle switch SW1.Two-way toggle switch SW1 is for realizing the master switch of internetwork connection mode conversion, its stiff end 1 is connected with triode Q1, two double-throw contacts 2 and 3 connect high level VCC and ground connection respectively, and the collector electrode 2 of triode Q1 is connected with high level VCC, and emitter 3 is connected with the control end of fixed relay K1.When stiff end 1 end of SW1 was communicated with double-throw contact 3, the base stage 1 of triode Q1 was a low level, and Q1 ends, relay K 1 not adhesive, at this moment, each holding wire of RJ45 be connected with own holding wire of the same name, network work is in normal connection status.When the stiff end 1 of SW1 was communicated with double-throw contact 2, the PIN1 of triode Q1 was a high level, the Q1 conducting, relay K 1 adhesive, at this moment, each holding wire of RJ45 be connected with the own corresponding reception or the line that transmits, be communicated with as TxD (+) and RxD (+), RxD (-) and TxD (-) are communicated with.This moment, the RJ45 interface worked in the direct connection state.
When specific implementation, in order to save cost, the circuit system of Network Interface Unit shown in Figure 4 can be integrated on the mainboard, the 5V electric power system by mainboard is as the direct power taking of VCC.Referring to shown in Figure 5, netting twine directly is connected on the RJ45 interface on the mainboard by the RJ45 joint, this RJ interface links to each other with the multitool interlock commutator that solid state relay K1 makes, toggle switch SW1 is arranged at the cabinet back, link to each other with relay by control circuit, when toggle switch SW1 is positioned at the normal position, network is in normal operating conditions, when toggle switch SW1 is positioned at the direct connection position, relay K 1 adhesive, the holding wire connected mode of network interface changes, and Network Interface Unit is in the direct connection operating state.
The utility model commutator that also multitool can be linked also can be made external mechanical switch, by the switching of manual realization connected mode.
Network Interface Unit of the present utility model is not only applicable to computer, and all can carry out the equipment of transfer of data by network interface also to can be applicable to PDA(Personal Digital Assistant) etc.The RJ45 interface is not limited to the contact connected mode that table 1 provides in the utility model, also can realize conversion by the utility model for other connected mode that puts in order.
By on equipment such as common computer, increasing Network Interface Unit of the present utility model, can under the situation of no switch, use common netting twine just can realize the communication of two intercomputers, this all can bring great convenience for domestic. applications, experimental test; Equipment for this necessary dependency network of network computer, entering family or test environment, also can avoid not having the situation that network computer that switch brings can't use, therefore realize that by common netting twine the direct connection of two computers is things highly significant.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; 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 (9)
1, a kind of Network Interface Unit comprises the network interface that is used for the Ethernet connecting line is connected to network control module, it is characterized in that, further comprises:
At least four commutators, the stiff end of these four commutators connect TxD (+), TxD (-), RxD (+) and RxD (-) end of described network interface respectively; Wherein,
Two double-throw contacts of the commutator that stiff end is connected with TxD (+) end of described network interface are connected to the TxD (+) and RxD (+) end of described network control module respectively;
Two double-throw contacts of the commutator that stiff end is connected with TxD (-) end of described network interface are connected to the TxD (-) and RxD (-) end of described network control module respectively;
Two double-throw contacts of the commutator that stiff end is connected with RxD (+) end of described network interface are connected to the RxD (+) and TxD (+) end of described network control module respectively;
Two double-throw contacts of the commutator that stiff end is connected with RxD (-) end of described network interface are connected to the RxD (-) and TxD (-) end of described network control module respectively.
2, network interface according to claim 1 is characterized in that, described four commutators are for carrying out the interlock commutator of change action synchronously, and two switching positions of this interlock commutator are respectively:
Position one, described four the stiff end TxD (+) that are connected with network interface, TxD (-), RxD (+) and RxD (-) are connected to the double-throw contact that is connected with TxD (+), TxD (-), RxD (+) and RxD (-) end of described network control module successively respectively;
Position two, described four the stiff end TxD (+) that are connected with network interface, TxD (-), RxD (+) and RxD (-) are connected to the double-throw contact that is connected with RxD (+), RxD (-), TxD (+) and TxD (-) end of described network control module successively respectively.
3, Network Interface Unit according to claim 2, it is characterized in that, described interlock commutator is a relay, this relay comprises: at least four inputs and eight outputs, four inputs are connected with described network interface as four stiff ends of described interlock commutator, and eight outputs are connected with described network control module as the double-throw contact of described interlock commutator.
4, Network Interface Unit according to claim 3 is characterized in that, described relay is an electromagnetic induction relay.
5, Network Interface Unit according to claim 3, it is characterized in that, this device further comprises: the toggle switch control circuit, this toggle switch control circuit comprises a double-throw toggle switch and a triode at least, in two switching points of described double-throw toggle switch one is connected with high level, another ground connection, the stiff end of this double-throw toggle switch is connected with the base stage of described triode, the collector electrode of this triode is connected with high level, and the emitter of this triode is connected to the control end of described relay.
6, Network Interface Unit according to claim 5 is characterized in that, this device is arranged on the computer equipment mainboard at described network control module place, and described high level is connected to the power supply of this mainboard.
7, Network Interface Unit according to claim 5 is characterized in that, described double-throw toggle switch is arranged on the cabinet rear portion of computer equipment.
8, Network Interface Unit according to claim 2 is characterized in that, described interlock commutator is the mechanical linkage commutator.
9, Network Interface Unit according to claim 1 is characterized in that, described network interface is the RJ45 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047824 CN2689606Y (en) | 2004-03-26 | 2004-03-26 | Network interface devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047824 CN2689606Y (en) | 2004-03-26 | 2004-03-26 | Network interface devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2689606Y true CN2689606Y (en) | 2005-03-30 |
Family
ID=34672095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420047824 Expired - Fee Related CN2689606Y (en) | 2004-03-26 | 2004-03-26 | Network interface devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2689606Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022272A (en) * | 2019-03-01 | 2019-07-16 | 许继电气股份有限公司 | A kind of network channel intersection switching device |
| CN113301457A (en) * | 2020-06-09 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Photoelectric transceiver and control method thereof |
-
2004
- 2004-03-26 CN CN 200420047824 patent/CN2689606Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022272A (en) * | 2019-03-01 | 2019-07-16 | 许继电气股份有限公司 | A kind of network channel intersection switching device |
| CN113301457A (en) * | 2020-06-09 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Photoelectric transceiver and control method thereof |
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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: 20050330 Termination date: 20100326 |