Abstract: The present application is directed to a connection interface assembly. The assembly includes a base module including a back wall defining the back of the base module and first and second opposite side walls that project forwardly from the back wall to a front of the base module, a cable connection module configured to be inserted into a module mounting location through the front of the base module, the cable connection module having a main body coupled to or integral with a front wall to which a plurality of cable connection components are mounted, and an enclosure including a fiber tray and a cover that is configured to engage the cable connection module to form an interior cavity and seal the fiber tray therein. Other connection interface assemblies are described herein.