Accession Number:

ADA142649

Title:

Embedded Information Transfer Technology Assessment.

Descriptive Note:

Final rept. 30 Sep 82-17 Nov 83,

Corporate Author:

GENERAL DYNAMICS FORT WORTH TX FORT WORTH DIV

Report Date:

1984-04-16

Pagination or Media Count:

85.0

Abstract:

The objective of this study is to develop approaches for improved Line Replaceable Unit LRU internal communications, utilizing state-of-the-art techniques and technology, in order to reduce the growing number of interconnects with LRUs. Worst-case LRU data transfer requirements were established by analyzing internal signal routing, data rates, and duty cycles of the F-16 Fire Control Computer FCC and the Programmable Signal Processor PSP. It was determined that 25Mwordsecond is adequate for card-to-backplane serial transfers. Candidate designs for meeting these requirements were developed and then subjected to an extensive trade-off analysis. This analysis ultimately yielded the selection of Switched Network Electro-Optical serial and Electro-Optical Air-Gap parallel as the preferred approaches. The interface pin-count per module of the recommended designs has been reduces to approximately 40. This is substantially lower that the average of 250 connections per module in most conventional approaches and fulfills the primary objective of this program. Further, the zero insertion-force air-gap interfaces directly support modular architectures and enhance the prospects of making two-level maintenance concepts a practical reality. Author

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Computer Hardware
  • Computer Systems
  • Fire Control and Bombing Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE