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.