Use of Cables for Telephone Distribution Purposes

The paper outlines the uses of telephone cable for distributiotn. purposes in typical metropolitan areas, susch as Baltimore add Washington. It includes some historical background as to the development of cable and the part it takes in the present overall plant investment. The division of metropolitan areas into central office areas and the various types of distribution are discussed. The engineering procedure followed in the design of cable distributing plant to provide economically a metallic circuit of satisfactory transmission quality to connect each subscriber´s telephone with the central office involves the consideration of many factors.