VXI STANDARD REVISION TO MEET TODAY'S TECHNOLOGY REQUIREMENTS

摘要

This standard describes the electrical and mechanical specifications of the IEEE-1155 VME eXtensions for Instrumentation (VXI) Standard that supports an integrated legacy parallel bus and serial bus architecture adopted from VME International Trade Association (VITA) Standard 41.3 [1], and LAN eXtensions for Instrumentation (LXI) Consortium [2]. It also addresses the definition of: (a) a C-size pluggable virtual power module; (b) the direct coupling option of the instrument module to the IEEE-P1505 Receiver Fixture Interface (RFI) [3]; (c) enhanced cooling structure; (d) advanced VME Controller/Switch Fabric modules; (e) VME64 connector compliance implementation; (f) improved noise and ripple isolation; (g) cooling air flow measurement; (h) IEEE-1149.1/4 Test Bus Boundary Scan/Mixed Signal [4]; and (i) LXI protocol/control line implementation. The specification also details: instrument module footprints, connector mechanics and electrical I/O between the backplane and instrument module, cooling/EMI requirements; VXI mainframe mechanical structure, cooling and environmental requirements; and the VXI backplane mechanical and electrical requirements.