sentences:  This work was undertaken once it was determined that existing intrinsically safe capable digital communication systems such as Foundation Fieldbus and Profibus could not meet the requirements of reduced physical size as well as the lower cost and power draw defined by the NeSSI-bus.Whether or not this bus will go into wide commercial production is unknown at this time.A nonprofit organization, CAN in Automation (CiA) released in 2007 a Draft Standard Proposal (DSP-103), that specifies the physical layer of an intrinsically safe bus.