NASA-LLIS-0413

Lessons Learned - Incorrect Actuations of Relays in Matrix (1975)

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T15:20:49Z
date available	2017-09-04T15:20:49Z
date copyright	06/26/1996
date issued	1996
identifier other	ATBEQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/20780
description abstract	Abstract: Because the Viking Orbiter power switching relays were arranged in a matrix, two relays could under certain conditions be inadvertently actuated when only one was commanded. A system control protocol should be established whereby independently requested relay actuations are executed in a predictable manner.
language	English
title	NASA-LLIS-0413	num
title	Lessons Learned - Incorrect Actuations of Relays in Matrix (1975)	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1996
contenttype	fulltext
subject keywords	Flight Equipment
subject keywords	Ground Operations
subject keywords	Spacecraft