Brand ABB, a well-known brand in the field of industrial automation, focuses on the research, development and production of industrial control systems and related accessories. Model number Full model number 1SAP214000R0001, product abbreviation TU508-ETH Category S500 series Ethernet communication terminal base is a base for installing and connecting PLC communication modules Alternative names ETH bus spring wiring base, Ethernet communication module base, AC500 system communication expansion base