| 摘要 |
PURPOSE: A switch box is provided to prepare a back side support member and a front side support member, thereby installing a circuit substrate of a plurality of layers in a box body. CONSTITUTION: A box body(10) is embedded into a building wall side. An internal space(11) is prepared in the box body. A switch unit including a circuit substrate(30) is installed in the internal space. The switch box includes a cover(20) which covers a front side of a body cover. A multi-layer installation structure is prepared in the internal space of the box body. The circuit substrate is installed in the multi-layer installation structure. |
