Relatively Operating Humidity 0~95 percent Color Black Surge Immunity 6KV, Per: IEC61000- 4- 5 Uplink Ports 2×10/100/1000Base-T+1 x 1000Base-X(combo) , 2x Green LED CCTV Mode Downlink ports only communicate with uplink ports , Restrain network storm under 2Mbps , Extend transmission distance to 250m , Rate: 10Mbps(Downlink Ports) Data Package Cache 2. 75Mb Grounding Terminal 1×Grounding Terminal Transmission Distance 100m(Max.) PoE Output 270W , 5x LED(Including 3x Green, 1x Yellow, 1x Red), separately indicate 30 percent 、60 percent 、90 percent 、95 percent ～100 percent Power Light 1x Red LED Single Port Power Output and Voltage single Port PoE Power Output=30W, Voltage 54VDC PoE Power Supply End- span(1/ 2,3/ 6),IEEE802. 3 af/ at Dimension 442mm x 285mm x 44.5mm Downlink Ports 24×10/ 100Base- TX PoE+ , Link: 16x Green LED PoE: 16x Yellow LED Exchange Capacity 8.8Gbps ESD Protection 6KV/8KV, Per: IEC61000-4-2 Operating Temperature – 10°C~ 45°C MAC Address List 4K.