| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit board in which a required external connection terminal can be mounted on a desired device, while suppressing the manufacturing cost.SOLUTION: In a circuit board 1 where a plurality of external connection terminals, for connection with various devices 2, 3, are mounted on a base substrate 5, and connected with an I/O device 7 for inputting and outputting signals between the device, external connection terminal groups P, X5-X8, N, and the like, consisting of specific external connection terminals including external connection terminals X6-X8, playing the same role and selected from a plurality of external connection terminals, are formed and a plurality of external connection terminal groups are mounted on the base substrate depending on various devices. |
