To provide a cross wiring structure with which very simple cross wiring can be performed.
In this cross wiring structure, when cross wiring is performed by using a plurality of cross wiring boards 300, 400, 500 each of which has a pattern of (k×j), in the case where the number of output ends of an input port 100 is the number of ports from (x-1)k+1 to xk and the number of input ends of an output port 200 is the number of ports from (y-1)j+1 to yj (but, k, j, x, y are integers of one or more and these may be the same values or different values), the wiring is performed by using (k×j) cross wiring boards 300, 400, 500 each of which has the same pattern. Moreover, the structure has non-connecting terminals to which the bundle of optical fibers is not connected at the output ends of the input port 100 or at the input ends of the output port 200.
KOBAYASHI MASARU
HIRAYAMA MAMORU
ASAKAWA SHUICHIRO
ARISHIMA KOICHI
NTT ELECTRONICS CORP
Kazuo Abe