Industrial-grade PoE extenders IEX101-PH extend Ethernet transmission distance and IEEE802.3af/at PoE+ output beyond the 100-meter limit of standard Ethernet. Paired devices, local and remote unit, operate in a point-to-point topology over 2- or 4-pair unshielded UTP cables up to 800 meters long. The remote unit is powered by the local unit and is then able to provide PoE output for standard or passive applications. This is the ideal solution to solve the problem of no electricity and save costs, it is designed for harsh environments and can be used in Industrial networks, traffic monitoring, safety automation applications and urban security, smart transportation systems. It is also suitable for many military or utility market applications where environmental conditions exceed commercial product specifications.