Phoenix Contact 1249598 A compact Ethernet switch features a broad operating temperature span supports up to twelve standard RJ45 ports with faster speeds of 10/100 Mbps plus two SFP ports that can handle even higher speeds of 100/1000 Mbps. It also boasts advanced features like ...Phoenix Contact 1249598 A compact Ethernet switch features a broad operating temperature span supports up to twelve standard RJ45 ports with faster speeds of 10/100 Mbps plus two SFP ports that can handle even higher speeds of 100/1000 Mbps. It also boasts advanced features like automatic data transmission speed detection which automatically adjusts the connection speed as needed and an autocrossing function that minimizes network congestion.