| 摘要 |
A frame (10) has accommodating chambers (18) and auxiliary housings (30) are inserted into the accommodating chambers (18) from behind. An identifying portion (33) is formed at a side surface of the rear end of each auxiliary housing (30). The identifying portions (33) are aligned vertically along a side edge (10R) of the rear surface of the frame (10) if all auxiliary housings (30) are inserted properly. The identifying portion (33) of an improperly inserted auxiliary housing (30) is at the wrong side, and can be detected. There is no need to make a vertical interval between accommodating chambers (18) larger because the identifying portions (33) are at sides of the auxiliary housings (30). Thus, the height of the frame (10) can be reduced.
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