Is it possible to use one of the lines in the network as a power cord when installing a webcam?
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The area occupied by the wire in the wire tube should not exceed 40% of the cross-sectional area of the pipe. For example, the PVC pipe with diameter of 20mm can wear only 5mm and 5mm cross-
You can only choose to shield a better line, and if the general line of the signal attenuation is not small, may lead to data loss in the transmission process
