| 摘要 |
<p>PURPOSE:To rapidly search a troubled part and to continuously operate a device on the upstream side closer to a receiving signal source than the troubled part by cascading a coaxial cable having a disconnection trouble investigation function to be able to search the troubled place of the coaxial cable when the trouble occurs in a receiving condition. CONSTITUTION:Plural devices 12 to 14 to receive data provide a switching means 18 to separate a coaxial cable toward a downstream side by these respective devices 12 to 14 and terminate the coaxial cable inputted to respective devices 12 to 14 with a termination resistance 17. When a trouble occurs in the receiving condition of respective devices 12 to 14, the switching means 18 is switched, and cascaded by the coaxial cable having a disconnection trouble investigation function to search the troubled place of the coaxial cable from the receiving condition of respective devices 12 to 14. Thus, the troubled part can be rapidly searched, and in addition, the device on the upstream side closer to a receiving signal source than the troubled part can continuously continue a normal action.</p> |
