Base-band ethernet over point-to-multipoint shared single conductor channel

Abstract

A method for point-to-point ethernet communication over point-to-multipoint shared single conductor channel topology comprises transmitting an ethernet signal upstream over the point-to-multipoint topology from one end point of the topology to the root of the topology, transmitting the ethernet signal downstream over the point-to-multipoint topology from the root of the topology to all end points of the topology, and selectively processing only at a designated end point the ethernet signal received at all end points. An ethernet system may comprise single conductor channel cabling (e.g., coaxial cabling) including a trunk line and a plurality of branch lines connecting to the trunk line at a plurality of points along the trunk line, a single root transceiver (root-PHY) connected at an end of the trunk line, and a plurality of end point transceivers (EP-PHYs), each connected to a respective one of the plurality of branch lines. The system and method further may communicate with an external network, such as the internet, via the root of the topology.