Intruder EN Grade One
How does Terminology differ between BS and EN50131?
Some Terminology has changed, and some of the more common terms and abbreviations used in the standards are detailed below.
IAS Intruder Alarm System (Type of System)
HAS Hold-up Alarm System (Type of System)
I&HAS Intruder & Hold-up Alarm System (Type of System)
ACE Ancillary Control Equipment (eg Exit Terminator Switch)
PACE Portable Ancillary Control Equipment (eg Remote Keyfob)
CIE Control and Indicating Equipment (eg Alarm Panel)
WD Warning Device (eg Bell Box, Sounders, Strobes)
ATS Alarm Transmission System (Signalling System)
ARC Alarm Receiving Centre (Monitoring Station)
PS Power Supply (Power Supply for I & HAS)
Example IAS (Intruder Alarm System)
The diagram below shows the terminology for the main components of a system.
Detectors are not shown in this example.
