High Density Wall Mount Splice Enclosures designed for use in a building entrance facility, providing an enclosure to splice ultra-high fiber count outside plant (OSP) cables to inside plant (ISP) cables. High Density Splice Enclosures. These boxes are well suited as optical cable splice collection points for MDU (Multi-Dwelling Unit) residential fiber network applications, MTU (Multi-Tenant Unit). Corning Optical Splice Enclosure (OSE) Universal High Density S-OSE-HD0-WT-1 Functionality: This enclosure is essential for organizing and protecting fiber optic splices in various environments, including equipment rooms, splicing vaults, and building entrance terminals in CATV, telco, and private. Our products are simple to use, reliable, scalable and with quality excellence. While traditional high density fiber splice enclosures support the port counts required, their design typically results in unmanageable clusters of cables bunched awkwardly in the back of the enclosure, and components. Our fiber optic splice cassette provide a secure and organized way to permanently join multiple fiber optic cables within your data centers, reducing clutter and improving network manageability.