HIGH-SPEED, LONG DISTANCE GATEWAYS AMONG VMEBUS, CAMAC, AND FASTBUS BACKPLANES

A CONSIDERABLE TECHNOLOGY BASE FOR DATA ACQUISITION AND CONTROL HAS BEEN BUILT AROUND THE INTERNATIONAL COMPUTER AUTOMATED MEASUREMENT AND CONTROL (CAMAC) BACKPLANE BUS. A NEW INSTRUMENTATION BACKPLANE STANDARD CALLED FASTBUS HAS BEEN DEVELOPED UNDER THE SPONSORSHIP OF DOE. THE EUROPEAN AND U.S. DATA PROCESSING AND DISPLAY COMMUNITIES HAVE WIDELY ACCEPTED THE VMEBUS BACKPLANE STANDARD. TO TO PROVIDE INTEROPERABILITY BETWEEN OLDER INSTRUMENTS BUILT TO CAMAC STANDARDS, NEWER DEVICES BUILT TO FASTBUS, AND GENERAL PURPOSE DATA PROCESSING EQUIPMENT BUILT TO VMEBUS, GATEWAYS AMONG THESE THREE BACKPLANES ARE NEEDED. FURTHERMORE, LONG DISTANCE GATEWAYS THAT CAN SPAN CAMPUS-WIDE OR FACILITY-WIDE MULTIPLE LABORATORIES/CONTROL ROOMS ARE NEEDED TO EFFECTIVELY INTEGRATE LARGER EXPERIMENTSOR PROCESS CONTROL APPLICATIONS. THIS TASK WILL PROVIDE THEDESIGN AND ARCHITECTURAL TRADEOFFS FOR HIGH THROUGHPUT, LOW DELAY GATEWAYS AMONG THESE THREE BACKPLANE STANDARDS VIA THEHIGH-SPEED FIBER OPTIC LOCAL AREA NETWORKS (LANS) UNDER DEVELOPMENT BY THE AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) FIBER DISTRIBUTED DATA INTERFACE (FDDI) AND BY THE SOCIETY OF AUTOMOTIVE ENGINEERS (ASE) AE9/B HIGH SPEED RING BUS (HSRB).