The Contractor shall maintain, install, move, or remove all cables, to include copper, coaxial, underground buried, aerial, fiber optic cable and transmission systems equipment. This includes all conn... The Contractor shall maintain, install, move, or remove all cables, to include copper, coaxial, underground buried, aerial, fiber optic cable and transmission systems equipment. This includes all connectors, terminations, and ducts from point of demarcation to the installation point for the required service to include T-1/E1, DSO, DS-3, Ethernet and optical carrier systems. The contractor shall provide preventive and corrective maintenance of the primary and secondary network.