Network broadcast storm protection16-Port IEEE 802.3at compliant PoE+ Function with 30W/PortSupports Auto MDI/MDI-X FunctionStore-and-Forward Switching Architecture2K MAC Address TableSurge Protection: 2, 000 VDC supportESD Protection: 6, 000 VDC supportRedundant Power Input Design – 48~55VDCBuilt-in 1 relay output for Port Break AlarmIP30 Rugged Aluminum Case DesignDIN-Rail and Wall Mount supportOperating Temperature range -10° to 70°C5-Year Warranty