Patent ID: 8483561

Claim:
A powering system for use in a copper-centric fiber to x (FTTX) architecture, the x (FTTX) architecture comprising: at least one point to point or point to multipoint optical distribution network (ODN) between an optical line termination (OLT) or first Ethernet Switch (ES) positioned at a central office (CO) and an optical network unit (ONU) or second Ethernet switch (ES) positioned at a cabinet (CAB) or building closer to a network terminal (CPE), the ODN being an active or passive network, at least one signalling coaxial or twisted wire pair line between the ONU or second Ethernet switch (ES) and one network terminal (CPE), and the ONU or the second ES being powered remotely from the central office (CO) via at least one powering twisted wire pair line extending between the central office (CO) and the cabinet (CAB) or building, and the powering system comprising: at least one main power supply (MPS) provided in the central office (CO) which is configured to remotely power the ONU or the second ES via the at least one powering twisted wire pair line extending between the central office (CO) and the cabinet (CAB) or building: at least one main power receiver provided in the cabinet (CAB) or building which is configured to receive the remote power via the at least one powering twisted wire pair line extending between the central office (CO) and the cabinet (CAB) or building; and wherein the main power supply (MPS) is extended with a spectral-power-density (SPD) modulator.