The SLC 96 subscriber loop carrier system: Physical design

The successful deployment of digital loop carrier systems by the operating companies is highly dependent on the physical and mechanical design of the electronics. A comprehensive description of the SLC® 96 subscriber loop carrier system central office and remote terminal equipment design is presented. Particular emphasis is placed on the loop plant electronics enclosures developed for operation in uncontrolled outside environments. Remote terminal thermal design guidelines are also presented, since thermal control of the environment surrounding the electronics is essential to long-term reliable operation. Throughout this paper, physical design requirements and objectives for digital loop carrier design are summarized.