Abstract: A cable system for erecting a barricade such as, for example, a security fence, on a support surface such as, for example, the perimeter of an area to be protected. The cable system is uniquely characterized by the structure of the hollow support posts, or bollards, and their fittings for the attachment of lengths of cable thereto to provide a barricade having high strength. Lengths of cable not only extend between adjacent posts, but each end of each cable length passes through the hollow void of each post for attachment thereto below the support surface. Each of the posts used in the system is preferably set in concrete, and the hollow void of each individual post is also filled with concrete. Also disclosed is a preferred structure for an individual post.