The 1410189-4 is RT 2 Series connectors used to interconnect printed circuit (pc) boards. RT 2 connectors are compliant to the VITA 46 standard for VPX architecture. The connectors consist of end-to-end stackable modules. Connector modules are used within slots of a backplane/plug-in card application. The VITA 46 standard defines connector requirements and OpenVPX standard slot configurations are defined in VITA 65.0 and 65.1.