This specification contains all the information necessary to facilitate the exchange of data and control information over the power line medium within a home. The document is divided into six sections (1 - 6):An introduction to the PL standard. A general description of the PL network that is likely to exist in residential environments. The specifications of the allowed topology and configuration rules for constructing PL networks in the home. A specification of the PL physical medium - this section covers frequency allocation, physical and electrical specification of the medium, connectors, environmental requirements, and installation considerations.