Apparatus for controlling access priority to common resources of functional modules distributed among a plurality of local units, each one of them forming a local daisy chain

摘要

The invention comprises a plurality of functional modules distributed in a plurality of local units (B1, B2, B3) forming a local "daisy chain" (BL1, BL2, BL3) in each of the latter, these local units being interconnected in such a way as to form an external "daisy chain" (BE), and each comprising a coupling module (C1, C2, C3) making it possible to provide propagation from a local "daisy chain" to the external "daisy chain" and vice versa. The invention applies especially to interconnection of several cabinets, each enclosing a limited number of modules or instrumentation cards. IMAGE