Technique for providing adaptive power distribution using a multi-node network of power distribution unit (PFBU) and undersea optical communication system using the same

摘要

In general, the branching configuration used in wavelength division multiplexing (WDM) optical communication systems, consistent with the present disclosure, is a multi-port DC / DC capable of multiple modes of operation for bidirectional power distribution. It includes a power supply branch unit (PFBU) (118-3) having a DC converter (DDCM) mechanism (501/518). The DDCM mechanism (501/518) is electrically coupled to one or more trunk route cable segments (114-3, 114-4) and to the branch cable segment (113). Can include a plurality of ports (626-1, 626-2, 626-3). A plurality of PFBUs (118-3, 118-4, 118-5, 118-6) may be arranged along the main route (112), and each PFBU has each branch route necessarily a local power supply equipment (PFE). Power the associated branch path, even if not having. In the case where the branch path includes a local PFE (190), the associated PFBU can draw power from the branch path to make power available to the trunk path as needed.