ELECTRICALLY OPTIMIZED HYBRID LAST MILE TELECOMMUNICATIONS CABLE SYSTEM

摘要

A cable system is provided which can accomodate electrical and optical cabling. The conductors (71, 73, 75, and 79) of the system employ a layer (79) which is impedance-matched to space, decreasing their cross section to electromagnetic interference. The conductors of the system also employ a layer (79) which symmetrizes electromagnetic interference signals, reducing the effect of interference and crosstalk on the signals carried by the conductors. The system also includes a node interface device for connection to a global electrical and fiber network. The node interface device connects to a user interface device through the cable.