Phoenix Contact 2862000 Inline connections are typically used for bus couplers, while INTERBUS is a standardized interface that often incorporates inline shields and connectors. The inline shield connector provides additional protection against electrical shock or other hazards, with a transmission speed of 2 Mbps on the local bus. This level of protection, as indicated by an IP20 rating, offers sufficient safeguarding in everyday environments, and may include various marking fields to ensure clear identification and documentation of the equipment's specifications and features.