Sideways-mount enclosure. A perfect solution for tight spaces is the OCC Sideways-Mount Enclosures. With their compact design, these wall-mountable cabinets offer an economical means for protecting network components. Their all-steel construction provides excellent protection from high-traffic areas, common in retro-fit network closets. In addition to its rugged construction, oversized cable entry points and a vented top and bottom make the sideways-mount enclosure an excellent solution for small spaces.