Patent ID: 8108576

Claim:
A management switch, comprising: M dongle modules, each transforming a digital video differential signal, and at least one peripheral signal, which are received from a corresponding host, into a differential composite signal, wherein M is a positive integer; and a console module respectively coupled to the M dongle modules via M network cables, wherein the console module is respectively coupled to N console devices, and N is a positive integer; wherein, each dongle module outputs the differential composite signal to the console module via the corresponding network cable, and the console module selects N differential composite signals from the M differential composite signals and transforms each differential composite signal into the digital video differential signal, and the at least one peripheral signal, which are outputted to the corresponding console device, wherein the at least one peripheral signal includes a keyboard control signal, and a mouse control signal, wherein each dongle module comprises: a digital video differential signal input terminal for receiving the digital video differential signal, which comprises a plurality of differential data signals, a differential clock signal and a low-frequency signal; a first keyboard control signal I/O terminal for receiving the keyboard control signal; a first mouse control signal I/O terminal for receiving the mouse control signal; a first processing unit for processing the low-frequency signal, the keyboard control signal and the mouse control signal to obtain a digital hybrid data; a first transforming unit for transforming the digital hybrid data into a differential hybrid signal; a synthesizer unit for receiving and composing the differential clock signal and the differential hybrid signal into a differential synthesized signal; and a first signal I/O terminal for receiving and outputting the differential data signals and the differential site synthesized signal into the differential composite signal.