This connector comprises: a connector main body mounted on a substrate; a latching piece that is attached to the connector main body and which temporarily joins the connector main body to the substrate by temporarily latching to an edge portion of an attachment hole formed in the substrate; and a rib having a width wider than the latching piece and which is attached to the connector main body. The sample well can comprise one or more bead retaining chambers. The caller ID information is routed through the signaling system 7 network to the SSP in the terminating network.