CN2369415Y

CN2369415Y - Electronic switch for computer network

Info

Publication number: CN2369415Y
Application number: CN 99205005
Authority: CN
Inventors: 赵龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-04
Filing date: 1999-03-04
Publication date: 2000-03-15
Anticipated expiration: 2009-03-04

Abstract

The utility model relates to an electronic switch for a computer network, which is used for controlling a computer to connect with two networks or network sections, and the electronic switch for a computer network is composed of a control circuit, two groups of switch circuits, two network / network section ports, two network card ports, a group of selective switches and a communication port used for communicating with a microcomputer, wherein, the input end of the control circuit is connected with the communication port. Two output paths of the control circuit are respectively connected with the control ends of the two groups switch circuits, and each switch circuit is correspondingly connected between the network / network section ports and the network card ports in series. The selective switches are connected between the two network card ports in parallel. The utility model has the advantages that the utility model can accomplish automatic control program, the reliability is high, and the cost is low.

Description

The computer network electronic switch

The utility model relates to the computer network electronic switch that the control computer is connected with two networks or the network segment.

The needs of Safety Design Network Based, we will be designed to computer network separate two networks or the network segment sometimes, so can produce the problem that a microcomputer need be communicated with heterogeneous networks in difference constantly.

Be head it off, the present practice roughly has following several: first, the microsystem of using the two mainboards in an inside, two hard disk, two network interface cards respectively with two network-in-dialings, this system is placed in two cover computer motherboards, hard disk, network interface card etc. in the cabinet, shares a cover keyboard, display, mouse etc. by shared device.Its defective is that the user can not select the microcomputer brand, maintenance difficult, and cost to exceed a similar microcomputer about more than 50%; The second, the method by manual plug exchanges netting twine, and microcomputer is communicated with heterogeneous networks in difference constantly, and there is user's troublesome poeration in this method, causes the defective of loose contact because of plug for a long time easily; The 3rd, by the hand control switch break-make, realize that microcomputer is communicated with heterogeneous networks in difference constantly, this method exists mechanical switch to cause loose contact easily, can not realize the deficiency of procedure auto-control.

In view of above-mentioned, the purpose of this utility model provides a kind of procedure auto-control, reliability height, computer network electronic switch with low cost realized.

For achieving the above object, the utility model is by the following technical solutions:

A kind of computer network electronic switch, it is characterized in that: it by control circuit, two groups of switching circuits, two network/network segment ports, two network interface card ports, a group selection switch, one be used for constituting with the PORT COM of microcomputer communication, wherein: the news port is connected in the input of control circuit, and the two-way output of control circuit connects the control end of two groups of switching circuits respectively; Each switching circuit is serially connected between the corresponding network/network segment port and network interface card port; Selector switch is attempted by between two network interface card ports.

In implementing measure of the present utility model:

Described selector switch is toggle switch or switching circuit.

Described network/network segment port and network interface card port are RJ45 type socket.

Control circuit receives the order of microcomputer, controls the break-make of two groups of switching circuits, thereby microcomputer is connected with one of two networks.In two network interface card microcomputer environment, selector switch is located at scram position, and the network interface card that this moment, control circuit can be controlled microcomputer is connected with a network, and perhaps another network interface card of microcomputer is connected with another network.In Single NIC microcomputer environment, selector switch is located at on-position, and the network interface card that this moment, control circuit can be controlled microcomputer is connected with one of two networks.

The utility model is owing to adopt above technical scheme, so have the following advantages: by the break-make of computer control electronic switch, can realize procedure auto-control, increased reliability, reduced operator's trouble, with low cost, the user installation maintenance easily, and is irrelevant with the employed microcomputer brand of user.

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

See also Fig. 1.The utility model is a kind of computer network electronic switch, it by control circuit 1, two groups of switching circuits 21 and 22, two network/network segment ports 31 and 32, two network interface card ports 41 and 42, one be used for the PORT COM 5 of microcomputer communication, and a group selection switch 6 constitute.Wherein: news port 5 is connected in the input of control circuit 1, and the two-way output of control circuit 1 connects the control end of two groups of switching circuits 21 and 22 respectively; Switching circuit 21 is serially connected with between network/network segment port 31 and the network interface card port 41, and switching circuit 22 is serially connected with between network/network segment port 32 and the network interface card port 42; Selector switch 6 is attempted by between two network interface card ports 41 and 42.

The utility model can be contained in the external housing, also can make internal circuit board and be contained in the microcomputer.

Network/network segment port 31 and 32 is connected on respectively on two networks or the network segment (hereinafter to be referred as A net, B net, and hypothetical network/network segment port 31 connects the A net, network/network segment port 32 connects the B net), the serial communication port or the parallel communications mouth of communication port 5 and microcomputer join, when the utility model is used for two network interface card microcomputer environment, network interface card port 41 and 42 respectively with two network interface cards of microcomputer join (hereinafter to be referred as A network interface card, B network interface card), when being used for Single NIC microcomputer environment, only need one of two network interface card ports 41 and 42 and the network interface card of microcomputer to join.

Control circuit 1 is by signal a control switch circuit 21 break-makes, by signal b control switch circuit 22 break-makes.When needing microcomputer to connect the A net, microcomputer is given an order to control circuit 1 by communication port 5, and control circuit 1 is connected switching circuit 21 by signal b cut-off switch circuit 22 by signal a; Otherwise control circuit 1 is connected switching circuit 22 by signal a cut-off switch circuit 21 by signal b.

Selector switch 6 is used to be provided with list/pair network interface card microcomputer environment.When the utility model is used for two network interface card microcomputer environment, selector switch 6 should be located at scram position, when control circuit 1 cut-off switch circuit 21 was connected switching circuits 22, only network interface card port 42 was communicated with network/network segment port 32, promptly set the B network interface card and netted with B and be connected; When control circuit 1 cut-off switch circuit 22 is connected switching circuit 21, have only network interface card port 41 to be communicated with network/network segment port 31, promptly set the A network interface card and be connected with the A net.In Single NIC microcomputer environment, selector switch 6 should be located at on-position, when control circuit 1 cut-off switch circuit 21 was connected switching circuit 22, network interface card port 41,42 all was communicated with network/network segment port 32, promptly set network interface card and was connected with the B net; When control circuit 1 cut-off switch circuit 22 was connected switching circuit 21, network interface card port 41,42 all was communicated with network/network segment port 31, promptly set network interface card and was connected with the A net.

Fig. 2 is a circuit diagram of realizing above-mentioned functions.Wherein: control circuit is made of microprocessor U1, two groups of switching circuits are respectively by electronic switch U2, U3 realizes, selector switch is realized by toggle switch SW1, two network/network segment ports are respectively by RJ45 type socket J4, J5 realizes, two network interface card ports are respectively by RJ45 type socket J3, J2 realizes, PORT COM is realized by DB9 type socket J1, J1 links to each other with P2～P5 pin of U1, control signal a refers to the signal that the P0 human hair combing waste of U1 goes out, it meets control input pin IN1～IN4 of U2, control signal b refers to the signal that the P1 human hair combing waste of U1 goes out, it meets control input pin IN1～IN4 of U3, the COM1 of U2 and U3～COM4 pin meets J4 and J5 respectively, and the NO1 of U2 and U3～NO4 pin meets J3 and J2 respectively, is connected on the two ends of SW1 simultaneously respectively.

Selector switch also can adopt the electronic switch of similar U2, at this moment only needs to draw a control line to its control input end from certain output pin of U1 again and gets final product.Network/network segment port, network interface card port, PORT COM also can adopt the socket of other model.

Below only be preferred embodiment of the present utility model, any based on equivalents of the present utility model, all should be within protection range of the present utility model.

Claims

1. computer network electronic switch is characterized in that: it by control circuit, two groups of switching circuits, two network/network segment ports, two network interface card ports, a group selection switch, one be used for constituting with the PORT COM of microcomputer communication, wherein:

The news port is connected in the input of control circuit, and the two-way output of control circuit connects the control end of two groups of switching circuits respectively;

Each switching circuit is serially connected between the corresponding network/network segment port and network interface card port;

Selector switch is attempted by between two network interface card ports.

2. computer network electronic switch as claimed in claim 1 is characterized in that: described selector switch is a toggle switch.

3. computer network electronic switch as claimed in claim 1 is characterized in that: described selector switch is a switching circuit.

4. computer network electronic switch as claimed in claim 1 is characterized in that: described network/network segment port and network interface card port are RJ45 type socket.