| 摘要 |
<p>PURPOSE:To make it possible to select rapidly and easily function change options of a unit and make the unit small-size and low-cost, by making it possible select function extension parts for the first and the second basic circuits. CONSTITUTION:In case that back panel 101 is used as the function extension part for the first basic circuit, boards 102... peculiar to the function extension part are mounted on the first connectors 1031-103m. Then, respective boards 102... mounted on panel 101 function as the function extension part for the first basic circuit which is constituted by boards mounted on back panels 201 and 202. In case that panel 101 is used as the function extension part for the second basic circuit, board 102 is removed when this board is mounted on connectors 1031..., and board 102 peculiar to the function extension part is mounted on the second connectors 1041-104m-1. Then, boards 102... mounted on panel 101 function as the function extension part for the second basic circuit which is constituted by boards mounted on panel 203.</p> |
