| 摘要 |
<p>PURPOSE:To completely monitor all sections and to easily orientate a fault point by using alternately the 1st and 2nd monitor channels for each section of a package and monitoring the monitor sections in the package with superposition on both monitor channels. CONSTITUTION:Two types of monitor channels are prepared against the monitor sections A and B, and the monitor sections 2 and 3 of the 1st and 2nd monitor channels are set alternately among packages 1a - 1c. At the same time, both sections 2 and 3 overlap with each other in the packages 1a - 1c. Thus the complete intra-package and inter-package monitoring operations are attained and the point of a fault if occurred is easily decided.</p> |
