The TP-DCDC-1224G DC to DC converters offered by Tycon Power Systems is a low-cost and high-reliability solution for those requiring 24VDC Gigabit Power Over Ethernet voltage from a 12 or 24V battery system.
They have an integrated Gigabit PoE injector to apply the regulated 24VDC to the CAT5 Ethernet cable. The input voltage must be between 9VDC and 36VDC.
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-).
They have various protections for surge, short circuit, and overload. The units have a power output of 19W.
This dc converter can be used as a backup power source with solar. It can power wireless access points and other client devices.