Power Matters™

Reverse Power Feed (RPF)

Reverse Power Feed (RPF) is a new technology being standardized by ETSI and the Broadband Forum. It allows sending power from the customer premises to a Distribution Point (DP), in order to power the Distribution Point Unit (DPU). The DPU includes typically a DSL Access Multiplexer (DSLAM) that can support up to 24 users and an Optical Network Terminator (ONT), which connects the DPU to a Central Office (CO) where the Optical Line Terminator (OLT) is located. RPF is a critical technology for the upgrade of VDSL2 subscribers to the new G.FAST standard, which has a maximum range (at high speeds) of 250m. Given that only a small amount of subscribers are located at a radius of 250m from a DPU, the number of DPUs required to deploy G.FAST infrastructure greatly increases, compared to VDSL2 and older xDSL technologies. Reverse Power Feeding reduces installation cost by removing the need to connect the DPU locally to the power grid, and to monitor its power consumption with a smart meter.
Microsemi manufactures IC's used to implement Power Sourcing Equipment (PSE) at the CPE and the Powered Device (PD) at the DPU. 
Learn more about Reverse Power Feeding:

 RPF Deployment Options



RPF Powered Device(PD) for Distribution Point Units(DPUs)

Driver P/N Controller P/N Ports Max. Power Per Line DC/ DC Topology Frequency Diode Bridge Evaluation Boards
PD70101 PD82000 1~16 13W Flyback, Foward, Buck, Boost 100~500kHz PD70224 Request a Quote or Sample
PD70201 PD82000 1~16 25.5W Flyback, Foward, Buck, Boost 100~500kHz PD70224 Request a Quote or Sample

 
RPF Power Sourcing Equipment (PSE) for Customer Premises Equipments(CPEs)

Driver P/N Controller P/N Ports FETS Sense Resistor Host I/F Option Standard Classes Supported Evaluation Boards
PD81001 Not Required 1 Internal
0.3ohm
External
0.5ohm
SPI IEEE802.3 10W, 15W, 21W 
and up to 30W Max
Request a Quote or Sample
PD81101 PD81000 1 Internal Internal I2C or UART ETSI TS 101 548 10W, 15W, 21W 
and up to 30W Max
Request a Quote or Sample