The Gigabit compatible TP-DCDC-2424GR-VHP are special very high power DC to DC converters / PoE inserters designed especially for Ubiquiti airFiber x™ wireless radio systems and other systems which require high power passive PoE (High PoE). The unique PoE inserter supplies 24VDC PoE power on all 8 Ethernet wires (4 pair) with the following pinout: 1,2,4,5 V+ and 3,6,7,8 V
They have two isolated inputs for connecting 2 power sources, like a primary and backup power source. They have various protections for surge, short circuit and overload. The input and output are isolated.