6 1/8 X 9 1/5 in Foreword
Preface
1. Intruder Alarm Systems
1.1 A complementary part o f the security industry
1.2 European Standards Euro Norms ( EN). EN50131
1.3 Security grading
1.4 Standard s, codes of practice and regulations
1.5 ACPO Security Syst ems Policy and response organizations
1.6 Local authority r equirements
1.7 The installation and servicing company
2. Intruder Alarm System Circuitry
2.1 Detector circuits
2.2 Line-monitoring devices
2.3 The electromagnetic relay
2.4 Powe r circuits
2.5 Control circuits
3. Intruder Alarm Detection Devices
3.1 Protective switches
3.2 Continuous wiring
3. 3 Glass break detectors
3.4 Deliberately operated hold up devices
3.5 Beam interruption detectors
3.6 Movement detectors
3.7 Inertia and vibration detectors
