Interface type:1x10/100/1000/2500Mbps RJ45 Data IN,1x10/100/1000/2500Mbps RJ45 PoE OUT,1xDC IN(3P) power terminal,1xDC2.0 power interface, Switch: 1 voltage adjustment switch Power input:DC2.0: 36-48V/5A(MAX),5.08mm_3P terminal: 12-48V/10A(MAX), output: 24Vdc(SPoE)/51Vdc(second generation), output power:MAX: 75W (DC12V IN/24Vdc OUTPUT),MAX: 90W (DC12V IN/51Vdc OUTPUT),MAX: 150W (DC48V IN/51Vdc OUTPUT), Network protocol:IEEE802.3 10BASE-T; IEEE802.3i 10Base-T; IEEE802.3u 100Base-TX; IEEE802.3x; IEEE802. 1000Base-T; IEEE802.3bz 2.5GBase-T; PoE pin definition: (1236+, 4578-) Transmission distance: /SPoE: 100/1000/2500Mbps 0-100m (CAT5e, CAT6), /SPoE: 10Mbps 0-250m (CAT5e, CAT6) Transmission medium: 10BASE-T: Cat3, 4, 5 and above twisted pair 100BASE-TX, 1000Base-T: Cat5, 5e, 6 and above twisted pair 2.5GBase-T: Cat5e, 6 and above twisted pair Heat dissipation: natural heat dissipation Protection level: IP40 EMC: Power surge protection: IEC 61000-4-5 4KV/2KV (8/20us) Network port surge