| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a line concentration box capable of being enclosed in an opening part provided at a wall surface of a building, completely inspecting lighting or flashing of a lamp, and accommodating electronics. <P>SOLUTION: This line concentration box 10 which is enclosed in the opening part provided at the wall surface of the building and accommodates the electronics is constituted by a material which radio waves permeate (A), a first side surface plate 11, a second side surface plate 12, a bottom surface plate 13, a top surface plate 14, a back surface plate 16, and a door 17 disposed at a front surface. This comprises a box body in which a through hole 15 is provided, and an inspection mirror 20 which is disposed in an inner part of the box body along the first side surface plate 11 and of which the flat surface shape is roughly rectangular (B). The lighting or flashing of the lamp 31 for operation confirmation provided with the electronics 30 accommodated in the box body can be checked by the inspection mirror 20 from the front surface side of the box body of which the door 17 is opened. <P>COPYRIGHT: (C)2003,JPO |
