POWER SUPPLY VOLTAGE INTERRUPTION METHOD BY CATV DEVICE, POWER CUT TOOL USED FOR THE SAME, AND FITTING STRUCTURE OF THE POWER CUT TOOL

摘要

PROBLEM TO BE SOLVED: To solve a problem of a conventional power supply voltage interruption method that has caused large-scale wave stopping and required a long time for restoration or the like.

SOLUTION: The power supply voltage interruption method is configured such that a power cut tool 40 is inserted between a cover 2 and a device body 3, the power cut tool 40 shuts off a power supply voltage in a high frequency signal and the power supply voltage received at an input terminal 6 to avoid the power supply voltage from being outputted to an output terminal 7 of the cover 2 and the high frequency signal is outputted to the output terminal 7 of the cover 2 and a branch terminal 31 of the device body 31. Further, the power cut tool 40 is provided with a power cut circuit 50 provided in a case 60, when the power cut tool 40 is fitted between the device body 3 and the cover 2, the power cut circuit 50 is connected to the input terminal of the cover 2 to cut off the power supply voltage received at the input terminal 6 so as not to be outputted to the output terminal 7. Moreover, a fitting structure of the power cut tool is disclosed that is characterized in that the power cut tool 40 is inserted between the cover 2 and a tap-off body 3 and attachable to / detachable from the cover 2 and the device body 3 with screws or by a clamp tool.

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