Phoenix Contact 2891018 An Ethernet switch with eight built-in RJ45 ports features automatic detection of transmission speeds between 10 and 100 Mbps, allowing for seamless connectivity. Additionally, the device boasts an auto-crossover function that eliminates the need for manual configuration. Furthermore, it includes a multicast filter that can block specific types of traffic, such as PROFINET PTCP-Delay, to enhance network security and efficiency.