Glossary

Filter:
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
A
A1
AC
ACD
ACK
ACL
ACU
A-D
Ada
ADC
ADH
ADM
ADP
AE
AES
AFJ
AFR
AI
AIG
AIN
AIS
AJ
AK
AKM
ALC
ALE
ALU
AMA
AMI
AMS
ANI
AOS
AP
APC
APD
APL
App
APU
AR
Arg
ARQ
ARS
ASU
AV
AVP
Alarm Sensor
  • In communication systems, any device that can sense an abnormal condition within the system and provide, either locally or remotely, a signal indicating the presence of the abnormality. Note: The signal may be in any desired form ranging from a simple contact closure (or opening) to a time-phased automatic shutdown and restart cycle.
  • In a physical security system, any of a group of approved devices used to indicate a change in the physical environment of a facility, or part thereof. Note: Sensors may also be redundant or chained as when one sensor is used to protect the housing, cabling, or power of another.
  • See also communications security, variation monitor.