The Unisys implemented, JIAWG compliant, linear, token-passing HSDB chip set description

As future avionic system architectures and concepts become increasingly dependent on distributed modular technology, the proliferation of the emerging Joint Integrated Avionics Working Group (JIAWG)-specified high speed data bus (HSDB) into every subsystem is likely. Unisys perceives a need for a HSDB chip set that can be integrated into the numerous non-common module applications that are prevalent in the platforms that will support the HSDB. The author details the features of the chip set that Unisys has developed that can be incorporated into various avionic architectures to provide the JIAWG standard fiber-optic data bus. Improvements being contemplated for the HSDB chip set and two potential implementations are described