Stewart Connector / Bel M12 D-Code Connectors and Cable Assemblies are useful for replacements, upgrades, and installations for a standard connector type used in industrial automation, automobile manufacturing, and factory automation machines. Stewart Connector / Bel M12 D-Code Connectors have four pins and comply with Profinet, EtherCAT, and Ethernet/IP protocols. The entire product line of connectors and cable assemblies is IP67 and IP68 rated when installed, making them reliable in an industrial environment.