Accession Number : AD0284793

Title :   SOME RELIABLE REDUNDANT CIRCUITS

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : TEOSTE,REIN

Report Date : 07 JUN 1961

Pagination or Media Count : 1

Abstract : Typical redundant digital computer circuits which have been designed and built are described. Also, theoretical reliability curves are shown for the redundant circuitry in comparison to nonredundant reliability curves. Experiments with hardware showed that reliable redundant circuits can be built with no difficulty. The reliability calculations show that if possible Moore-Shannon redundancy should be chosen over the gate connector redundancy, and when Moore-Shannon redundancy is used, it may be desirable to make redundant only components which are relatively unreliable at the start. The experimenting has shown that detection of failed components in redundant circuitry is quite hard. Gate connector redundancy is considerably better in this respect. (Author)

Descriptors :   *CIRCUITS, *DIGITAL COMPUTERS, DESIGN, ELECTRIC CONNECTORS, ELECTRONIC EQUIPMENT, ELECTRONIC RELAYS, ELECTRONIC SWITCHES, FAILURE (MECHANICS), MATHEMATICAL ANALYSIS, RADIOFREQUENCY OSCILLATORS, RELIABILITY, SWITCHING CIRCUITS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE