A majority of indoor cable is used in building wiring applications. Installed in walls, between floors, in plenum air handling ducts and under data center floors, HCM fiber cable used in building wiring applications is built to withstand the tensile stresses present during installation by the contractor or assembler, and, once installed, will provide a safe shroud for many years of trouble-free glass use. MultiUnit Fiber Optic Cable manufactured by Hitachi includes: Multiunit Riser Cables Multiunit Plenum Cables