Lesson 1Network vs analogue systems: NVR vs DVR setups and hybrid choicesGet the differences between analogue and IP CCTV, covering DVRs, NVRs, and hybrid systems. Learn upgrade paths, cabling effects, and when to stick with old coax or switch fully to network video for your sites.
Analog HD formats over coaxIP camera and NVR topologiesHybrid DVR and encoder optionsBandwidth and cabling implicationsMigration from DVR to full IPLesson 2Recorders and storage: Sizing NVRs, RAID choices, retention maths, drive endurance and HDD picksLearn to size NVRs for channels, bitrate, and how long to keep footage. Compare RAID setups, HDD types, and endurance ratings, plus calculate storage for various resolutions and frame rates in practical installs.
Bitrate estimation per camera streamRetention and storage sizing formulasRAID 0, 1, 5, 6, and 10 trade-offsSurveillance-grade HDD vs desktop HDDWrite endurance and workload ratingsLesson 3Types of CCTV cameras (fixed, varifocal, PTZ, dome, bullet) and their best usesCompare fixed, varifocal, PTZ, dome, and bullet cameras and where each shines. See how shape, weather, and threat levels guide your pick for deterrence and anti-vandal strength.
Fixed lens cameras for simple scenesVarifocal lenses for flexible framingPTZ cameras for active monitoringDome vs bullet form factor selectionVandal-resistant and covert optionsLesson 4Sensor sizes, resolution, frame rates, and night performance (1/2.8", 2MP, 4MP, 4K, WDR, IR distance)See how sensor size, resolution, and frame rate affect picture quality and data use. Master night vision like WDR, IR range, and low noise, balancing sharp images with storage and network loads.
Common sensor sizes and crop factors2MP, 4MP, 4K resolution pros and consFrame rate vs motion blur and storageTrue WDR vs digital WDR techniquesIR illumination range and limitationsLesson 5Picking real-world models: Reading spec sheets, vendor trust, warranty and support checksBuild skills to read camera and NVR datasheets, spot true performance, and dodge sales hype. Weigh vendor reliability, firmware updates, warranties, and returns when selecting gear.
Key specs that truly affect performanceReading sensitivity and lux ratingsVerifying bitrate and codec claimsVendor firmware and security historyWarranty terms and RMA proceduresLesson 6Network switches and PoE: PoE standards (802.3af/at/bt), power budgets, managed vs unmanagedMaster PoE standards, power planning, and switch choices for CCTV networks. Compare managed and unmanaged options, port numbers, uplink speeds, and backups for solid camera links.
802.3af, 802.3at, 802.3bt power levelsCalculating PoE power budgetsPoE switch vs midspan injectorsManaged vs unmanaged switch featuresUplink capacity and oversubscriptionLesson 7Camera extras: PoE, ONVIF fit, motion sensing, audio, tamper alertsCheck key camera features for smooth setup and use, like PoE, ONVIF, motion detection, audio, and tamper warnings. Know when each is must-have, nice-to-have, or skippable.
PoE classes and power draw per cameraONVIF profiles and interoperabilityMotion detection and smart analyticsAudio input, output, and legal issuesTamper detection and event handlingLesson 8Accessory choices: Mounts, enclosures, sunshades, cable glands, surge guards, weatherproofing for outdoor gearReview add-ons that shield and steady CCTV setups, like mounts, housings, sunshades, glands, and surge protection. Learn weatherproof tips for tough outdoor jobs.
Wall, pole, and corner mount choicesOutdoor housings and sunshieldsCable glands and strain reliefSurge protectors and groundingWeatherproofing seals and ratingsLesson 9Power supplies and backups for CCTV: DC boosters, central PSUs, UPS sizing for recorders and network kitStudy power choices for cameras and recorders, from DC supplies, PoE boosters, to UPS units. Size UPS right and plan backups to keep recording through blackouts.
Centralized vs local power suppliesDC distribution and voltage dropPoE injectors and midspan designUPS sizing for NVRs and switchesRedundant power and failover plansLesson 10Lens picks, view angles, and focal length sums for coverage zonesGrasp how focal length, sensor size, and lens type shape view and detail. Practise zone planning, angle choices, and lens calculations for ID, recognition, or wide views.
Fixed vs varifocal lens characteristicsFocal length, FoV, and distance relationsSensor size impact on coverage widthCalculating pixels per foot or meterSelecting lenses for entrances and gates
