Lesson 1Network vs analog systems: NVR vs DVR setups an hybrid choicesUnderstand di difference between analog an IP CCTV, including DVR, NVR, an hybrid setups. Learn migration plans, cabling effects, an when fi keep old coax or switch full to network video.
Analog HD formats over coaxIP camera and NVR topologiesHybrid DVR and encoder optionsBandwidth and cabling implicationsMigration from DVR to full IPLesson 2Recorders an storage: NVR sizing, RAID choices, retention math, write endurance an HDD pickUnderstand how fi size NVRs fi channel count, bitrate, an retention. Compare RAID levels, HDD types, an write endurance, an calculate storage needs fi different resolutions an frame rates.
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 a CCTV cameras (fixed, varifocal, PTZ, dome, bullet) an use casesCompare fixed, varifocal, PTZ, dome, an bullet cameras an dem best use cases. Learn how form, environment, an risk level affect camera choice, deterrence, an resistance to vandalism.
Fixed lens cameras for simple scenesVarifocal lenses for flexible framingPTZ cameras for active monitoringDome vs bullet form factor selectionVandal-resistant and covert optionsLesson 4Sensor formats, resolution, frame rates, an low-light performance (1/2.8", 2MP, 4MP, 4K, WDR, IR range)Explore how sensor format, resolution, an frame rate affect image quality an bandwidth. Learn low-light ideas like WDR, IR range, an noise, an how fi balance detail wid storage an network limits.
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 5Choosing real models: reading datasheets, vendor rep, warranty an support tingsBuild skills fi read camera an NVR datasheets, compare real performance, an avoid marketing tricks. Check vendor rep, firmware support, warranties, an RMA processes when picking models.
Key specs that truly affect performanceReading sensitivity and lux ratingsVerifying bitrate and codec claimsVendor firmware and security historyWarranty terms and RMA proceduresLesson 6Network switches an PoE: PoE standards (802.3af/at/bt), budget math, managed vs unmanaged switchesLearn PoE standards, power budgets, an switch pick fi CCTV networks. Compare managed an unmanaged switches, port counts, uplink capacity, an redundancy fi reliable camera connection.
802.3af, 802.3at, 802.3bt power levelsCalculating PoE power budgetsPoE switch vs midspan injectorsManaged vs unmanaged switch featuresUplink capacity and oversubscriptionLesson 7Camera features: PoE, ONVIF fit, motion detection, audio, tamper detectionCheck key camera features weh affect integration an use, like PoE, ONVIF, motion detection, audio, an tamper alarms. Learn when each feature essential, optional, or no need fi di project.
PoE classes and power draw per cameraONVIF profiles and interoperabilityMotion detection and smart analyticsAudio input, output, and legal issuesTamper detection and event handlingLesson 8Accessory pick: mounts, housings, sunshields, cable glands, surge protectors, an weatherproof fi outside unitsCheck accessories weh protect an steady CCTV installs, like mounts, housings, sunshields, glands, an surge protection. Learn weatherproof ways fi reliable outdoor setups.
Wall, pole, and corner mount choicesOutdoor housings and sunshieldsCable glands and strain reliefSurge protectors and groundingWeatherproofing seals and ratingsLesson 9Power supplies an backup fi CCTV: DC injectors, central power supplies, UPS sizing fi recorders an network gearStudy power options fi cameras an recorders, including DC supplies, PoE injectors, an UPS systems. Learn fi size UPS capacity an design backup fi keep recording during power cuts.
Centralized vs local power suppliesDC distribution and voltage dropPoE injectors and midspan designUPS sizing for NVRs and switchesRedundant power and failover plansLesson 10Lens pick, field a view, an focal length math fi given coverage areasLearn how focal length, sensor size, an lens type affect field a view an target detail. Practice coverage planning, angle pick, an basic lens math fi meet ID, recognition, or overview needs.
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
