A simple model of copper local loop for use in current DSL applications

This paper introduces a quite simple and comprehensible model of copper local loop in current DSL applications. The model is useful for engineers and other technical staff, who operate on local loop qualification and troubleshooting in order to evaluate its ability to provide reliable triple play service over DSL quickly. An overview of existing local loop model is presented briefly at the beginning of this paper. Based on pointed shortcomings of those models, a new one, which removes shortcomings, is proposed. A usability of proposed model in present-day conditions, especially in respect to broadband market situation, is analysed briefly.