Abstract: An overhead cabling system for a telecommunications switching center including one or more cable chute assemblies, a plurality of cable tray assemblies, and one or more cable ladder assemblies. The cable chute assemblies are mounted to the floor adjacent the ends of the cabinet suites. The cable ladder assemblies are supported by the cable chute assemblies and extend cross aisle between two or more cabinet suites. The cable tray assemblies are mounted to the tops of the cabinets which provide the sole support for the cable tray assemblies. The cable tray assemblies are modular and designed to fit on top of a single cabinet. The overhead cabling system does not require support from the walls or ceiling of the telecommunications center.

Abstract: A seismic support module for supporting communications equipment on a raised floor includes a plurality of anchoring feet secured to the structural concrete floor and a plurality of support columns having generally horizontal top plates on one end thereof extending up from the anchoring feet. Attached to the plates are a plurality of tie rails and run rails forming a horizontal frame for supporting the communications equipment and the raised floor tiles. The outermost support columns are preferably braced by a plurality of diagonal cross-braces. The anchoring feet have a base plate, preferably a plurality of vertically extending sockets, and a reinforcing plate between the sockets. Preferably, the anchoring feet are interchangeable with each other as are support columns, tie rails, and run rails.