AE - Annunciation Equipment - The software utilised by ARC operators to view and act upon alarm signals received.
ARC - Alarm Receiving Centre - A call centre where all alarm traffic is received an processed.
AS - Alarm System - The sum of components that make up a Fire or Intruder detection system
ATE - Alarm Transmission Equipment - The components of an AS that allow the transmission or signalling of events to a remote location (ARC)
ATP - Alarm Transmission Path - The network medium which is utilised by ATE to signal or communicate with a remote location e.g PSTN, ADSL, GPRS etc
ATS - Alarm Transmission System - The components that allow alarm conditions to be transmitted and received from the protected premises to the alarm receiving centre via single or multiple ATPs
ATSP - Alarm Transmission Service Provider - An organisation who provides a managed or supervised ATS, for example WebWayOne or BT RedCARE.
ADSL - Asymmetric Digital Subscriber Line - Also known as Broadband.
PSTN - Public Switched Telephone Network - The analogue voice network