| 摘要 |
PROBLEM TO BE SOLVED: To provide a board and a device for transmitting optical signals which can lessen man-hours required for wiring and the cost required for wiring. SOLUTION: Individual optical signal transmitting boards 11-15 are equipped with optical signal transmission regions, in each of which at least one side between a light emitting element which transmits an optical signal to other optical transmitting boards 11-15 and a light receiving element D which receives the optical signal from the other optical signal transmitting boars 11-15 is arranged capable of transmitting/receiving the optical signal in the direction substantially vertical to the board face. When stacking a plurality of these boards, a light receiving element is arranged in one of the other optical signal transmitting boards 11-15, so that it is counterposed to the light emitting element provided in one of the optical signal transmitting boards. |
