| CPC H04B 10/25751 (2013.01) [H04B 10/564 (2013.01); H04B 10/697 (2013.01); H04B 10/29 (2013.01)] | 20 Claims | 

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               1. A receiving end, comprising: 
            a first high-speed signal optoelectronic transmission module and a first low-speed signal optoelectronic transmission module, wherein: 
                a power supply port of the first high-speed signal optoelectronic transmission module connects to a high-speed signal line of the receiving end, and a power supply port of the first low-speed signal optoelectronic transmission module connects to the high-speed signal line of the receiving end through a power switch; 
                wherein the receiving end is configured to: 
                before plugging into a destination end, the first high-speed signal optoelectronic transmission module acquires electric power from the high-speed signal line of the receiving end; wherein, after the first high-speed signal optoelectronic transmission module receives a first preset high-speed light signal or a second preset high-speed light signal transmitted from an optical fiber, setting, by the first high-speed signal optoelectronic transmission module, a light signal idle flag thereof to an invalid state, 
                the first preset high-speed light signal is a high-speed light signal converted from a high-speed electrical signal generated when a sending end, corresponding to the receiving end, monitors a second low-speed electrical signal on a low-speed data line of the send end; 
                the second preset high-speed light signal is a high-speed light signal converted from a second preset high-speed electrical signal sent after a source being awakened; and 
                in response to the light signal idle flag of the first high-speed signal optoelectronic transmission module being in the invalid state, the power switch is turned on, accordingly the first low-speed signal optoelectronic transmission module acquires electric power from the high-speed signal line of the receiving end, and the first low-speed signal optoelectronic transmission module starts working normally. 
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