The PS48 is a 48VDC power supply that can be used with many of the industrial networking solutions offered by Nitek. Power over Ethernet is needed to for Nitek?s EL1500C, EL1500U and EE328. Typically these devices will gain power from their connected network switches or PoE inserters. The PS48 is recommended for use with these products when PoE sourcing equipment is not available or if additional power is required at the transmitter due to voltage drop caused by wire attenuation which occurs from long cable distances.