Patent ID: 6115517
Filing Date: 2000-09-05
Classification: H04J,H04Q

Abstract:
An optical communication network apparatus comprising:plural optical branching means each having an input terminal and a first output terminal and a second output terminal;a first optical switching network, a second optical switching network;a third optical switching network;plural optical connecting means each having a first input terminal and a second input terminal and an output terminal;a first group of plural input terminals;a first group of plural output terminals;a second group of plural input terminals; anda second group of plural output terminals,wherein the first group of input terminals are connected to the input terminals of the optical branching means,the first output terminals of the optical branching means are connected to the first optical switching network,the first optical switching network is connected to the first input terminals of the optical connecting means,the output terminals of the optical connecting means are connected to the first group of output terminals,the second output terminals of the optical branching means are connected to the second optical switching network,the second optical switching network is connected to the second group of output terminals,the second group of input terminals are connected to the third optical switching network, andthe third optical switching network is connected to the second input terminals of the optical connecting means.