Abstract: A modular fiber optic cabling infrastructure system for use in combination with fiber optic cabling, connecting hardware and at least one corresponding transitionary device includes a chassis enclosure surrounding a cavity and forming a plurality of orifices for supporting incoming and exiting fiber optic cabling connections; a plurality of unique integration plates each being sized and configured for selective attachment to at least one of the plurality of orifices and each including a top surface and a bottom surface, the bottom surface of each of the plurality of unique integration plates forming an o-ring groove along a perimeter zone of the bottom surface, and wherein each of the plurality of unique integration plates is structured and disposed for supporting a corresponding style of connecting hardware; an o-ring sized for congruent receipt within the o-ring groove; and wherein each of the plurality of unique integration plates is selectively interchangeable.