by Ronald Tellas, Belden
Remote powering enables the ability to easily place end devices where they are needed instead of based on proximity to a power source. Class 2 remote power delivery (DC power supplies and Power over Ethernet) carries a 100 W power limitation and has a “practical” reach of only a few hundred meters. Network connectivity to end devices requiring more than 100 W or spanning several hundreds of meters can lead to costly solutions. A fault-managed power system (FMPS) is new technology, defined as Class 4, that can go beyond the limitations of Class 2 and maintain the benefits and flexibility of remote powering.