The EKI-2525/2528 is a Fast Ethernet solution with a +12 ~ 48 VDC redundant input design, including Power Polarity Reverse Protection and Overload Current Resetable Fuse. These features protect against reverse power switching and overload currents. If the power supply normalizes, the EKI-2525/2528 resumes operation automatically. Each port has 2 LEDs to indicate link status, transmission speed, and collision status. It also includes a relay output for event alarms, activating an LED to notify administrators during power failures. Engineers can check the LED for quick troubleshooting. The device has a compact metal IP30 housing to protect against industrial dust.