Communication module for KVM switching equipment, KVM switching equipment and system

Abstract

The invention relates to the field of video display control, particularly provides a communication module for KVM switching equipment, and aims to solve the technical problem of how to conveniently realize communication between the KVM switching equipment and large-scale external equipment. In the communication module provided by the invention, a first serial communication interface of a channel control sub-module is connected with each path of photoelectric signal channel of an optical interface sub-module, and a second serial communication interface of the channel control sub-module is connected with each path of serial communication channel of a KVM switching module. The number of data transmission channels of each optical module in the communication module can be increased through theoptical interface submodules, so that each optical interface submodule can be in communication connection with a plurality of external devices through a group of communication optical fibers, and theoptical fiber wiring difficulty and cost of the KVM switching device are reduced. And meanwhile, communication connection is established between each serial communication channel and multiple photoelectric signal channels through the channel control submodule, so that the KVM switching equipment can control a plurality of pieces of external equipment connected with the optical interface submodulethrough one serial communication channel.

Description

technical field [0001] The invention relates to the technical field of video display and control, in particular to a communication module for a KVM switching device, a KVM switching device and a system. Background technique [0002] KVM switching device refers to a computer peripheral device that controls multiple servers through a set of keyboard (Keyboard), display (Video) and mouse (Mouse). KVM switching device can communicate with external devices through a preset communication module. At present, KVM switching devices mainly use optical fiber communication modules based on multiple single-channel communication interfaces (such as SFP interfaces or RJ45 interfaces), that is, each single-channel communication interface can only communicate with one external device. , which will inevitably increase the number, cost and wiring difficulty of communication cables. At the same time, due to the size limitation of the communication module, a single-channel communication interfa...

AI Technical Summary

Problems solved by technology

At present, KVM switching equipment mainly adopts optical fiber communication modules based on multiple single-channel communication interfaces (such as SFP interface or RJ45 interface), that is, each single-channel communication interface can only communicate with one external device. , which will inevitably increase the number, cost and wiring difficulty of communication cables

At the same time, due to the size limitation of the communication module, it is impossible to set a single-channel communication interface with a large order of magnitude, so that it cannot meet the communication needs of KVM switching equipment for large-scale external equipment.

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