A contact module assembly is provided for an electrical connector. The contact module assembly includes a lead frame having a plurality of terminals and a commoning member at least partially including an electrically conductive material. The commoning member has a plurality of tabs that are electrically connected to selected ones of the terminals, thereby electrically commoning the selected ones of the terminals. The commoning member can be configured with different patterns of the tabs to selectively configure the lead frame with different patterns of commoned terminals.