CCTV: Cameras, Recorders, and What Coverage Means
IP versus HD-over-coax, camera types and specs, DORI coverage, DVR/NVR/VMS, storage and PoE sizing, network design, integration and commissioning.
Access Control: Doors, Readers, and Attendance
Access control versus Time & Attendance — readers, credentials, controllers, fail-safe locks, OSDP, BS 7273-4 fire release, power sizing and BoQ essentials.
Fire Alarm: Conventional and Addressable Systems
Smoke, heat, multi-criteria, beam, ASD and flame detectors — plus conventional versus addressable architecture, spacing, loops, cause-and-effect and battery sizing.
Networks: The Cabling Under Every Other System
Copper categories, shielding, PoE types, fiber backbone and certification — how the physical layer under cameras, doors and the office is chosen and proven.
Public Address and Voice Evacuation
PA, PAVA and voice alarm — 100 V sizing, active versus passive speakers, SPL and STI, EN 54-16/-24, and how fire-alarm integration decides what people hear.
Intrusion Alarm: Zones, Sensors, and Arming
Door contacts, glass-break, PIR and dual-tech, zones versus partitions, arming modes, EOL supervision and EN 50131 grades — how an intrusion system is built to respond.
Parking and Barrier Systems
Paid parking, boom barriers, ANPR/RFID, tariffs, lane throughput, ultrasonic and camera guidance, Find My Car, loops, civil works and commissioning.