The SLC 96 subscriber loop carrier system: The fiber SLC carrier system

The advantages of digital loop carrier systems operating on wire pairs can be enhanced by the use of lightguides in place of wire pairs. Lightwave systems can provide wide bandwidth capability, small cable size, long-range repeater-less operation, and immunity to electromagnetic interferences. This article describes the development of a 1.3-μm LED/PIN based system designed specifically for the loop environment.