The EKI-2725 supports Gigabit Ethernet. The power is a +12V ~ 48VDC redundant input design, and is secured with a double protection mechanism: Power Polarity Reverse Protect and an Overload Current Resetable Fuse. The EKI-2725 tolerates reverse power wiring while the later secures the system from overload currents. As the power supply turns normal, EKI-2725 will automatically get back to normal operation state. Wide Temperature Grade