| 摘要 |
PROBLEM TO BE SOLVED: To reduce sizes, while suppressing signal interference due to cross talk, etc., by arranging a prescribed first circuit board and a prescribed second circuit board in parallel at a prescribed interval and connecting the first and second circuit boards with a flexible circuit board. SOLUTION: This optical transmission/reception module is provided with a printed board 10 whereupon a prescribed wiring pattern is formed and a printed board 11, which has a prescribed wiring pattern formed thereon and is arranged in parallel to a printed board 10 at a prescribed interval. The module is also provided with an optical transmission/reception circuit 2 composed of integrated circuits mounted on both the planes of the printed board 10 and a logic circuit 4 composed of a large scale integrated circuit mounted on one plane of the printed board 11. The module has a flexible printed board 12 which is bent in U-shape and electrically connects the printed boards 10 and 11. The printed boards 10 and 11 are arranged in parallel at an interval that does not generate signal interference such as cross talk between the optical transmission/ reception circuit 2, optical transmission/reception circuit and a logic circuit 4. |
