CN2638129Y

CN2638129Y - Mouse, keyboard and display exchanger used in machine group

Info

Publication number: CN2638129Y
Application number: CN 03277732
Authority: CN
Inventors: 于学萍; 李电森; 肖利民
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2003-07-16
Filing date: 2003-07-16
Publication date: 2004-09-01
Anticipated expiration: 2013-07-16

Abstract

The utility model discloses a mouse, a keyboard and a display exchanger used in machine group, which at least comprises a KVM switching control board and a power supply module; wherein the KVM switching control board comprises a KVM switching module, a single chip computer playing the action of packaging the signals and a differential transmission, reception and delivery module; the KVM switching module of the KVM switching control board is connected with a group of KVM information input interfaces used to be connected with the cluster server nodes; the differential transmission, reception and delivery module of the KVM switching control board is connected with an RJ45 interface; the power supply module supplies the electricity to each module in a KVM exchanger. By adopting the utility model and integrating the power supply, a KVM switcher and a KVM extender together can degrade the demand for space in the cabinet of the cluster server and can simplify the installation and configuration of the system, so as to further reduce the fault points of the installation and maintenance and simplifies the equipments and the connecting lines. The utility model has higher practical values.

Description

The mouse of using in the group of planes, keyboard and display switch

Technical field

The utility model relates to field of computer technology, particularly relates to KVM (keyboard Keyboard, monitor Video and the mouse Mouse) exchange apparatus that in the computer group server mouse, keyboard and display is switched.

Background technology

At present in the cluster server system, the technical scheme that mouse, keyboard and display are switched is such: that adopts a unification in server cabinet inside switches the KVM switch to mouse, keyboard and display, and each server of rack inside all connects with the KVM switch; If the place far from server need connect mouse, keyboard and display, just need to increase extender, prior art in the cluster server field to mouse, keyboard and display switch and the method for growing Distance Transmission with reference to shown in Figure 1, at first at unified KVM switch of the inner employing of server cabinet, each server of rack inside all connects with this KVM switch; Also need to connect extender, and extender needs external 9V transformer.There is very big defective in such technical scheme in present cluster server is used, mainly show:

One, equipment and complex circuitization, if the place far from server need connect mouse, keyboard and display, just need to increase extender, extender needs external 9V transformer, and the right switching device relevant with KVM of keeper's demand side has 3 like this: KVM switch, extender, 9V power supply.

Also need to connect the line of KVM switch with extender when the keeper need dispose the KVM cable, the 9V power supply is with the connection of extender, and the input end of 9V power supply is with the connection of power supply in the rack.Too much line and equipment have increased the workload of engineering construction, make faults such as mistake connects, virtually connects increase simultaneously, and then have increased the trouble spot of total system.

Its two, the increase that takes up room, installation, maintenance inconvenience.The installation in rack of 9V power supply and extender can increase space requirement, also causes the intensive complexity of circuit in addition, causes inconvenience is installed, if fault, inspection and maintenance is also very difficult.

The utility model content

The purpose of this utility model is that the KVM switch that proposes to use in a kind of group of planes integrates power supply, KVM switch and KVM extender, make the switching device and the line of rack inside simplify greatly, to adapt to the easy demand of group of planes server maintenance, reduce the fault point and maintenance difficulties.

The technical solution of the utility model is achieved in that the KVM switch of using in a kind of group of planes described in the utility model, at least comprise KVM switching control plate and power module, wherein, the KVM switching control plate comprises the KVM handover module, single-chip microcomputer and the differential transfer of being responsible for the signal packing receive sending module, the KVM handover module of described KVM switching control plate connects one group and is used for the KVM information input interface that links to each other with the cluster server node, the differential transfer of described KVM switching control plate receives sending module and connects the RJ45 interface, and power module is above-mentioned each module for power supply in the KVM switch.

The KVM switch of using in the aforesaid group of planes also is provided with the pilot lamp of indication handover information and manual button at the front panel of KVM switch.

The KVM switch of using in the aforesaid group of planes, described KVM handover module adopts present industry to use 8 mouthfuls of the most general KVM switchs, the principle of work of this switch mainly is to be connected on the KVM switch by procedure simulation, do not take the mouse-keyboard of actual host, and come the switching on different main frames of mouse beacon, keyboard and display by a series of analog switch.

The KVM switch of using in the aforesaid group of planes, it is exactly the KVM extender that described differential transfer receives sending module, adopted general KVM extender, the principle of work that described differential transfer receives sending module is to make signal that the transmission of very long distance can be arranged by differential transfer, and its acp chip mainly is to adopt general difference chip to realize the differential transfer of signal.

The KVM switch of using in the aforesaid group of planes, described KVM information input interface is Biao ZhunVGA ﹠amp; The 2*PS/2 interface.

Aforesaid power module adopts be have+5V and-Universal Switching Power Supply of 5V output, its function mainly is for each module in the above-mentioned KVM switch provides power supply, if simple direct current+5V and-power module of 5V output just can adapt to the demand of each module.

Adopt the utility model, power supply, KVM switch and KVM extender are integrated, can reduce the space requirement in the cluster server rack, installation and configuration that again can simplified system, and then trouble spot, thin device and the line of minimizing installation and maintenance, have higher utility.

Description of drawings

Fig. 1 is a cluster server connection diagram in the prior art;

Fig. 2 is a KVM switch theory structure synoptic diagram described in the utility model;

Fig. 3 is the cluster server connection diagram behind employing the utility model.

Embodiment

Below in conjunction with accompanying drawing the technical solution of the utility model is described in detail.

Fig. 1 is a cluster server connection diagram in the prior art, because at unified KVM switch of the inner employing of server cabinet, each server of rack inside all connects with this KVM switch; Also need to connect extender, extender needs external 9V transformer, causes equipment complicated.Switching device KVM switch, extender, the 9V AC power relevant that keeper's demand side is right with KVM; Scheme among Fig. 1 has operation easier on engineering, the keeper connects, virtually connects in the face of complicated line is easy to cause mistake, the fault that improper use causes occurs.And equipment is many, and this just means that the trouble spot increases, and this management for a group of planes is very disadvantageous, is easy to reduce the reliability of total system, and in addition, the installation in rack of 9V power supply and extender both can increase space requirement, can cause installing inconvenience again.

Fig. 2 is a KVM switch theory structure synoptic diagram described in the utility model, the KVM switch of using in the group of planes described in the utility model, comprise KVM switching control plate and power module, wherein, the KVM switching control plate comprises the KVM handover module, is responsible for single-chip microcomputer and differential transfer reception sending module that signal is packed.Described KVM handover module is that present industry is used 8 mouthfuls of the most general KVM switchs, this switch mainly be to be connected on the KVM switch by procedure simulation, do not take the mouse-keyboard of actual host, come the switching on different main frames of mouse beacon, keyboard and display by a series of analog switch simultaneously.It is exactly the KVM extender that described differential transfer receives sending module, adopted general KVM extender, the principle of work that this differential transfer receives sending module is to make signal that the transmission of very long distance can be arranged by differential transfer, and its acp chip mainly is to adopt general difference chip to realize the differential transfer of signal.

As shown in Figure 2, expression is interior major function plate--the KVM switching control plate of KVM switch in the frame of broken lines, and it has the KVM handoff functionality, and signal can be packed, transmission.Be exactly the functional module of all KVM switches in solid line boxes, except that the KVM switching control plate, also be included as the power module of each module for power supply in the KVM switch.Described power module adopts be have+5V and-Universal Switching Power Supply of 5V output, its function mainly is for each module in the KVM switch provides power supply, if simple direct current+5V and-power module of 5V output just can adapt to the demand of each module.

Described KVM handover module has one group of KVM information input interface, and input end is the VGA﹠amp of standard; The 2*PS/2 interface links to each other with the cluster server node by this interface, and described differential transfer receives sending module and connects the RJ45 interface.As shown in Figure 2, the KVM cable of cluster server node is connected on (VGA﹠amp on one group of unified KVM signal input interface; 2*PS/2), the KVM signal of a plurality of node inputs outputs to the differential transfer module by producing one tunnel output behind the KVM handover module, through realize unified output port after the processing of difference block on the RJ45 interface.

Also be provided with the pilot lamp and the manual button of indication handover information at the front panel of KVM switch.The keeper can finish blocked operation by manual button.

As mentioned above, the solution of Fig. 1 has just developed into the scheme of Fig. 3, and Fig. 3 is the cluster server connection diagram behind employing the utility model.This moment, the switching device at the inner relevant KVM of rack had only the KVM switch, and it has the single power supply input interface of 220V/50Hz, one group of KVM information input interface (VGA﹠amp; 2*PS/2) and the output interface of a RJ45.

It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1, the KVM switch of using in a kind of group of planes, it is characterized in that: comprise KVM switching control plate and power module at least, wherein, the KVM switching control plate comprises the KVM handover module, is responsible for the single-chip microcomputer and the differential transfer reception sending module of signal packing, the KVM handover module of described KVM switching control plate connects one group and is used for the KVM information input interface that links to each other with the cluster server node, the differential transfer of described KVM switching control plate receives sending module and connects the RJ45 interface, and power module is above-mentioned each module for power supply in the KVM switch.

2, the KVM switch of using in the group of planes according to claim 1 is characterized in that: the pilot lamp and the manual button that also are included in the indication handover information on the KVM switch front panel.

3, the KVM switch of using in the group of planes according to claim 1, it is characterized in that: described KVM handover module adopts 8 mouthfuls of KVM switchs, described 8 mouthfuls of KVM switchs do not take the keyboard and mouse of actual host, but are connected on the KVM switch by procedure simulation.

4, the KVM switch of using in the group of planes according to claim 1 is characterized in that: described differential transfer receives sending module and adopts general KVM extender.

5, the KVM switch of using in the group of planes according to claim 1 is characterized in that: described KVM information input interface is Biao ZhunVGA ﹠amp; The 2*PS/2 interface.

6, the KVM switch of using in the group of planes according to claim 1 is characterized in that: described power module employing+5V and-Universal Switching Power Supply of 5V output.