Patch board type optical switching device for communication node, has stage comprising diffusion modules each having specific input and outputs and another stage with spatial router comprising inputs and outputs

摘要

The device has a stage (E1) comprising diffusion modules (MS11-MS1N) each having an input and n outputs. A stage (E2) comprises selection modules (MS21-MS2Q) each comprising an input and q outputs. A stage (E3) has a spatial router comprising specific inputs and outputs. The outputs of the stage (E1, E2) are connected to inputs and outputs of the stage (E3) respectively. A coupling unit (MBF) couples each input of the stage (E3) to one of the outputs of the stage (E3) based on the chosen input/output combination.