| 摘要 |
<p>PURPOSE: To remarkably reduce the power consumption and heat generation by performing switching of a connection so that driving voltage may be supplied to only the on-board power source of the package in an operation state. CONSTITUTION: In a first switch SW 1, the data processing part 4 of a first package 1 is normally connected with main data and the data processing part 4 of a second package 2 is separated from main data. At the time of switching over, the data processing part 4 of the first package 1 is separated from main data and the data processing part 4 of the second package 2 is connected with main data. In a second switch SW 2, the on-board power source 3 of the first package 1 is normally connected with the driving voltage of -48V, and the on-board power source 3 of the second package 2 is not connected with the driving voltage of -48V. At the time of switching over, the on-board power source 3 of the first package 1 is not connected with the driving voltage of -48V and the on-board power source 3 of the second package 2 is connected with the driving voltage of -48V.</p> |
