Tycon Systems Gigabit DC to DC Converter, 12VDC Input Voltage 24VDC Output Voltage, 19W Maximum Output Power (TP-DCDC-1224G) The TP-DCDC-1224 DC to DC converters offered by Tycon Power Systems are a low cost and high reliability solution for those requiring 24VDC Power Over Ethernet voltage from a 12 or 24V battery system. They accept data-in to a shielded RJ45 Jack and provide data-out and POE power on the shielded RJ45 output jack. They work by supplying power on the unused Ethernet pins 4,5(V) and 7,8(V). An IEEE 802.3af compliant model is available for those applications requiring 802.3af handshake. Input Voltage 9-36VDC; Output 18V, 24V or 48VDC, IEEE 802.3af compliant model and non-compliant models, dual Inputs for connecting 2 power sources. Integrated 10/100MB POE Inserter, High Power up to 24W, Short Circuit, Over Current and Reverse/Over Voltage Protection High Temperature Operation, Compact size  Maximize Available Space