| 摘要 |
PURPOSE:To reduce the kind of trunk frame and to eliminate unnecessary trunk unit, by providing a fuse to a trunk package in the unit of trunk package unit. CONSTITUTION:The fuse H is provided to a -48V terminal AT and a +50V terminal BT of the trunk package. Since the power feeding system is taken as a lateral feeding system, the connection between trunk units TRKU1, 2 and the trunk frame TRKF has only to require several power supply lines. Thus, it is not required to mount the trunk units TRKU1, 2 fixedly on the trunk frame TRKF and the trunk units are mounted on the trunk frame as required. Thus, the kind of the trunk frame is reduced and unnecessary trunk units are eliminated. |
