Lesson 1Overview of CCTV system architecture: cameras, recorders (NVR/DVR), storage, network, powerLearn how cameras, NVRs or DVRs, storage units, switches, and power systems connect to build a complete CCTV setup that allows recording, remote viewing, backup options, and room for growth in the future.
Roles of cameras, encoders, and recordersNVR vs DVR vs hybrid architecturesNetwork topology for CCTV trafficStorage sizing and retention planningRemote access, clients, and VMSLesson 2Regulatory and privacy considerations affecting camera placement and recordingUnderstand how privacy laws, data protection guidelines, and industry standards shape where cameras are placed, how long footage is kept, audio recording, and signage requirements to ensure CCTV systems stay legal and strong during checks or court cases in Ghana.
Key global and local CCTV legal frameworksData protection, consent, and purpose limitationAudio recording restrictions and best practicesSignage, notifications, and privacy maskingRetention periods, access rights, and logsLesson 3Illumination and low-light technologies: IR, white-light, low-light CMOS, WDR, BLC, HLCDiscover how infrared and white-light lighting, low-light CMOS sensors, wide dynamic range, backlight compensation, and highlight compensation combine to produce clear images in dark areas, scenes with light behind subjects, and high-contrast spots typical in CCTV use across Ghana.
IR LEDs, IR range, and wavelength choicesWhite-light illuminators and deterrenceLow-light CMOS and minimum lux ratingsWide Dynamic Range concepts and tuningBLC and HLC for backlight and glareLesson 4Lens basics: focal length, field of view, fixed vs varifocal, auto-iris, megapixel lens considerationsGrasp how focal length, sensor size, and lens quality determine the field of view, distance for identification, and image clarity, and compare fixed, varifocal, auto-iris, and megapixel lenses for various CCTV needs in Ghanaian settings.
Focal length, sensor size, and angle of viewFixed vs varifocal lens use casesAuto-iris vs manual iris operationMegapixel lens resolution and MTFLens selection for typical CCTV scenesLesson 5Mounting, housings and environmental ratings: pole, wall, ceiling mounts, IK and IP ratings, vandal housingsFind out how mounting equipment, protective housings, and environmental ratings shield cameras from rain, theft attempts, and damage, and select pole, wall, or ceiling mounts that provide stability, safety, and proper angles for Ghana's weather conditions.
Wall, ceiling, and pole mount selectionOutdoor housings and heater–blower unitsIP ratings for dust and water ingressIK ratings and vandal-resistant designsCable routing, seals, and strain reliefLesson 6Power and connectivity: PoE fundamentals, power budgets, cable types (Cat5e/Cat6, coax), surge protectionAcquire useful knowledge on PoE standards, power calculations, cable types, and coaxial options, along with protection from surges and lightning, to guarantee steady, secure, and compliant power and data supply to CCTV equipment in Ghanaian installations.
PoE standards, modes, and power classesCalculating and verifying power budgetsCat5e vs Cat6 vs coax for CCTV linksConnectors, patch panels, and terminationsSurge, lightning, and grounding practicesLesson 7Image sensors, resolution standards and their trade-offs: 720p, 1080p, 4MP, 4KLook at how sensor size, pixel spacing, and resolutions like 720p, 1080p, 4MP, and 4K influence detail level, data usage, storage needs, and performance in low light, helping you make smart choices for each monitoring situation in Ghana.
Sensor types, sizes, and pixel pitchCommon CCTV resolutions and aspect ratiosDetail levels for detect, observe, identifyBandwidth and storage impact of resolutionBalancing resolution with low-light needsLesson 8Camera types and form factors: fixed dome, turret, bullet, PTZ, panoramic, covertExamine main CCTV camera types and shapes, such as domes, turrets, bullets, PTZ, panoramic, and hidden units, and see how each design impacts coverage area, deterrence effect, resistance to tampering, and ease of installation in Ghanaian environments.
Fixed dome and microdome applicationsTurret cameras and IR performanceBullet cameras for long corridorsPTZ cameras for active monitoringPanoramic and multi-sensor camerasCovert and discreet camera options