BROADCAST TRANSMISSION IN WDM-PON

摘要

PURPOSE: A broadcast transmission in a WDM-POM is provided to simplify the configuration of an RN through a multi-wavelength broadcasting transmission device which generates a broadcasting signal having plural wavelengths. CONSTITUTION: An OLT(Optical Line Terminal)(102) generates downward communication signals of n number of wavelengths for each ONU(Optical Network Terminals)(1121-112n). A multi-wavelength broadcasting transmission unit(104) generates broadcasting signals of the n number of wavelengths for each ONU. A signal combiner(106) combines the downlink communication signals with the broadcasting signals, and a remote node(110) separates a signal for the ONU from the combined signal.