Lesson 1Network vs Analog Systems: NVR vs DVR Architectures and Hybrid OptionsGrasp the distinctions between analog and IP CCTV systems, covering DVR, NVR, and hybrid setups. Discover migration approaches, cabling effects, and decisions on retaining legacy coaxial or transitioning to full network video for optimal performance.
Analog HD Formats over CoaxIP Camera and NVR TopologiesHybrid DVR and Encoder OptionsBandwidth and Cabling ImplicationsMigration from DVR to Full IPLesson 2Recorders and Storage: NVR Sizing, RAID Options, Retention Calculations, Write Endurance and HDD SelectionMaster NVR sizing for channel numbers, bitrate, and retention periods. Evaluate RAID configurations, HDD varieties, and write endurance factors, plus compute storage demands for various resolutions and frame rates in reliable setups.
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 Use-CasesExamine fixed, varifocal, PTZ, dome, and bullet cameras alongside their ideal applications. Understand how form, surroundings, and threat levels guide selections for deterrence, vandalism resistance, and effective monitoring.
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, and Low-Light Performance (1/2.8", 2MP, 4MP, 4K, WDR, IR Range)Investigate sensor sizes, resolutions, and frame rates' impact on image clarity and bandwidth. Delve into low-light features like WDR, IR distance, and noise reduction, balancing detail against storage and network constraints effectively.
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 Realistic Models: Interpreting Datasheets, Vendor Reputations, Warranty and Support ConsiderationsHone abilities to analyze camera and NVR datasheets, assess true performance, and sidestep hype. Assess vendor reliability, firmware updates, warranties, and return processes when selecting models for long-term Canadian installations.
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), Budget Calculations, Managed vs Unmanaged SwitchesExplore PoE standards, power budgeting, and switch choices for CCTV networks. Differentiate managed and unmanaged options, port capacities, uplink speeds, and redundancy for stable camera connections in diverse settings.
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 Compatibility, Motion Detection, Audio, Tamper DetectionAssess vital camera attributes influencing integration and ease of use, such as PoE, ONVIF, motion sensing, audio, and tamper alerts. Determine when features are crucial, optional, or redundant for specific projects.
PoE Classes and Power Draw per CameraONVIF Profiles and InteroperabilityMotion Detection and Smart AnalyticsAudio Input, Output, and Legal IssuesTamper Detection and Event HandlingLesson 8Accessory Selection: Mounts, Housings, Sunshields, Cable Glands, Surge Protectors, and Weatherproofing for External UnitsEvaluate accessories for safeguarding and securing CCTV setups, including mounts, enclosures, sunshields, glands, and surge safeguards. Apply weatherproofing techniques for durable outdoor installations in Canadian climates.
Wall, Pole, and Corner Mount ChoicesOutdoor Housings and SunshieldsCable Glands and Strain ReliefSurge Protectors and GroundingWeatherproofing Seals and RatingsLesson 9Power Supplies and Redundancy for CCTV: DC Injectors, Centralized Power Supplies, UPS Sizing for Recorders and Network EquipmentReview power solutions for cameras and recorders, encompassing DC supplies, PoE injectors, and UPS units. Calculate UPS capacities and plan redundancies to sustain recording amid power disruptions reliably.
Centralized vs Local Power SuppliesDC Distribution and Voltage DropPoE Injectors and Midspan DesignUPS Sizing for NVRs and SwitchesRedundant Power and Failover PlansLesson 10Lens Selection, Field of View, and Focal Length Calculations for Given Coverage AreasUnderstand focal length, sensor dimensions, and lens types' effects on field of view and detail capture. Apply planning, angle choices, and lens calculations to fulfill identification, recognition, or broad overview needs.
Fixed vs Varifocal Lens CharacteristicsFocal Length, FoV, and Distance RelationsSensor Size Impact on Coverage WidthCalculating Pixels per Foot or MetreSelecting Lenses for Entrances and Gates