Introduction
Intrusion Detections Systems (IDS), are sited within a building and offer out of hours protection when the building or buildings are locked at night.
CPNI assured IDS will always consist of at least two separate components:
- IDS control and indicating equipment (CIE) - the “brains” which will audit and control the system
- Detectors – individual mounted detectors which will sense an intrusion
A complete IDS will take the overall grading of the lowest component, for example;
ENHANCED CIE, 3 ENHANCED detectors, 2 BASE detectors = BASE overall
For in-depth guidance to IDS, see: Intrusions Detection Systems Guidance for Security Managers
Assessment and Assurance
For the purpose of assessing and assuring, CPNI have split IDS into different categories;
- protective switches: detects the opening of a door or window to which it is fitted;
- vibration detectors : detects vibrations on the structure to which it is fitted:
- beam detectors : detects the presence of an intruder by the disruption of one or more infra-red or laser beams;
- microwave sensors: detects the presence of a moving intruder by responding to the reflection of radio waves;
- break glass detectors : detects glass windows being broken;
- Passive infra-red sensors: detects the presence of a moving intruder by responding to the infra red (heat) signature generated by the human body;
- control and Indicating equipment (CIE)