Rockwell Automation AADvance Controller System Build - Manual (Page 127)

Document: 553632
(ICSTT-RM448_EN_P) Issue: 08:
8-9
Chapter 7 Glossary of Terms
U U U U
U U U U
Rack unit. A unit of measure used to
describe the height of equipment intended
for mounting in a standard rack. Equivalent
to 44.45mm (1-¾ inches).
V V V V
validation validation validation validation
In quality assurance, confirmation that the
product does what the user requires.
verification verification verification verification
In quality assurance, confirmation that the
product conforms to the specifications.
voting system voting system voting system voting system
A redundant system (m out of n) which
requires at least m of the n channels to be in
agreement before the system can take
action.
W W W W
withstand voltage withstand voltage withstand voltage withstand voltage
The maximum voltage level that can be
applied between circuits or components
without causing a breakdown.