Beijing DS FieldBus Technology (北京鼎实创新科技股份有限公司) is a company that develops and manufactures industrial ethernet communication products. It offers the PROFIBUS protocol conversion gateway and master gateway, the PROFINET gateway, Ethernet proxy server series products, embedded communication interface boards, chips and development kits, Fieldbus remote I/O (input/output) and thermostats, network diagnosis tools, repeaters, hubs (HUB), optical fiber modules (OLM), connectors (plugs), wireless modules, etc.