The MCAFD series active fieldbus distributors are suitable for FF-H1 and PROFIBUS PA applications. They connect field devices to the system using a trunk-and-branch topology. The MCAFD4/MCAFD8 distributors have 4/8 branches each, with built-in automatic bus termination. LED status indicators enable quick diagnosis of short circuits in the main and branch lines, and automatically isolate faulty sections. The distributor’s multiple protection function ensures safe system operation. 1. IP67-rated enclosure for outdoor use. 2. Simple plug-and-play installation. 3. Comprehensive protection, safe and reliable.