This kit has the advantage of extending 200~300m / 650~900ft by a one-side powered Ethernet over coax pair units. The Powered Sourcing Equipment (PSE), EoC-100-HOST, is powered by 24V DC, and transmit power and Ethernet data signal through a single coaxial cable to the Powered Device (PD), EoC-100-D, which is connected to an IP camera or a storage device.