| 摘要 |
PROBLEM TO BE SOLVED: To confirm an engaged condition between fellow connectors in a plurality of printed circuit boards (PKG) and a back-wiring board (BWB) by simple constitution, in an electronic equipment or the like for the plurality of PKGs on the BWB to be mounted. SOLUTION: An engagement confirming signal generated in an engagement confirming signal generating part (PG) 41 for the PKG 1 is output to the BWB side connector 31 via a PKG side connector 11, is imparted to a BWB side connector 32 via a pattern 51, and is input to the PKG 2 via the PKG side connector 12. The input engagement confirming signal is turned back by a signal direct-coupled wiring part 12a of the PKG 2 as it stands, and returned to an engagement confirming signal receiving part (ED) 42 in the PKG 1 via a route of the PKG side connector 12→the BWB side connector 32→a pattern 52→the BWB side connector 31→the PKG side connector 11. The signal is received normally in the ED 42 to confirm the engagement between the fellow connectors in a PKG 1 side and a PKG 2 side. COPYRIGHT: (C)2003,JPO
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