fieldbus
n.— «The focus of its group members is on so called “open fieldbus” systems, which allow devices of different manufacturers to be connected to a single communication bus.…You will take part in the development of new communication interfaces for open network and fieldbus systems tuned to the European market needs.» —“Industrial Communications Engineer” by Mark Purtow Usenet: nl.markt.banen Jan. 23, 2001. (source: Double-Tongued Dictionary)
The quotation didn’t identify the larger context. Fieldbus or field bus is a term used in industrial process instrumentation and control. It denotes the lowest level in an electronic hierarchy that extends right up to corporate management.