Switch manageable Ethernet with 12 RJ45 ports for 10/100 Mbit / s, two RJ45 ports for 10/100/1000 MBit / s and two fiber optic ports in SC-D format to 100 MBit / s, autocrossing functions, auto-negotiation, management SNMP (Simple Network Management Protocol), full redundancy IEEE (STP / RSTP / MST), redundant 24VDC power supply, Model FL SWITCH-4012T-2GT 2FX, FL Line SWITCH 4000 - Phoenix Contact.