Cabos PoE Ethernet Transmitter Receiver Extends 500 Meters (1640 ft) Ethernet Signal Data PoE Power 100Mbps RJ-45 IEEE802.3af/at Network Switch Extender Extend Ethernet signal and PoE power to 500 meters (1640 feet), compliant with standard Ethernet protocols and devices Industrial grade design, wide operating temperature range -30C ~ 60C. The N1E500T/N1E500R can not only be powered by standard IEEE802.3af/at PoE devices, but also can be driven by 48~54VDC power input. Short-circuit protection, overload protection and surge protection Full-duplex operation at the rate of 100 Mbps