Patent ID: 6198558
Filing Date: 2001-03-06
Classification: H04L,H04Q,Y10S

Abstract:
A fiber optic communication system comprising:a host digital terminal (HDT) for connection to a core communications network; andat least one optical network unit (ONU) for interfacing to a corresponding plurality of subscriber loops and connected by optical fiber to the HDT;wherein, for each subscriber loop communicating with the core network, said subscriber loop transmits analog or digital data to its corresponding ONU (and vice versa) in a corresponding one of a plurality of analog formats; said corresponding ONU transmits digital data to the HDT (and vice versa) in a common, high-bandwidth digital format; and the HDT transmits digital data to the core network (and vice versa) in a corresponding one of a plurality of digital formats;wherein the HDT executes digital signal processing functions for converting data from any of the plurality of digital formats to the common digital format (and vice versa).