Lesson 1Door/window contact types (reed, surface, recessed) and placement best practicesExplores reed, surface, and recessed contacts for doors and windows, covering wiring, gap allowances, and magnet positioning. Stresses optimal placement to prevent false triggers, interference, and wear from everyday door and window use in local settings.
Reed switch operation and ratingsSurface vs recessed contact selectionGap spacing, alignment, and tolerancesWiring methods and EOL resistor usePlacement to reduce damage and tamperingTesting contacts during door operationLesson 2Siren/strobe types, decibel ratings, indoor vs outdoor placementExamines siren and strobe varieties, sound levels, and tone features. Discusses indoor versus outdoor positioning, cabling, power allocation, and considerations for regulations and neighbours regarding noise and duration in Eritrean environments.
Piezo vs mechanical siren designsDecibel ratings and tone frequencyIndoor siren placement strategiesOutdoor siren and strobe positioningCurrent draw and power calculationsCode limits on sound level and durationLesson 3Keypad and mobile app interfaces, indicators, and user feedbackOutlines keypad and app interfaces, featuring display options, status lights, and sound cues. Includes user codes, arming options, and how designs enhance ease of use, training, and fewer mistakes for Eritrean users.
Fixed vs alphanumeric keypad displaysLED indicators and status meaningsAudible beeps, chimes, and voice promptsMobile app control and notificationsUser codes, authority levels, and duressDesigning simple user flows and promptsLesson 4Glass-break sensors: acoustic vs shock, mounting and sensitivity settingsCovers acoustic and shock glass-break methods, detection ranges, and installation guidelines. Details sensitivity adjustments, site constraints, and testing to minimise undetected breaks and unnecessary alerts in residential areas.
Acoustic sensor principles and rangesShock sensor operation and mountingSelecting locations by glass typeSensitivity levels and dip switch setupEnvironmental noise and false alarm controlFunctional testing with glass-break testersLesson 5Environmental sensors and optional devices (smoke, CO, freeze, garage, panic)Reviews smoke, carbon monoxide, heat, freeze, water, garage, and panic units linked to alarms. Explains positioning, connections or setup, alert types, and ties to safety standards and insurance in Eritrea.
Smoke and heat detector integrationCarbon monoxide detector placementFreeze and water leak sensor usesGarage door and tilt sensor optionsPanic, medical, and hold-up devicesLabeling and priority of life-safety zonesLesson 6Control panel features and processor/firmware basicsIntroduces control panel hardware, processing units, and software functions in system control. Covers storage, zone limits, data links, and updates, focusing on reliability, protection, and planning for local installations.
Main board layout and terminal functionsProcessor, memory, and speed basicsZone capacity and expansion modulesKeypad and device bus architecturesFirmware versions and change logsSafe firmware update proceduresLesson 7Wiring vs wireless tradeoffs, zones per loop, supervised vs non‑supervised devicesContrasts wired and wireless options, weighing dependability, effort, and expense. Explains zones per circuit, identification, and monitored versus unmonitored setups, advising on suitable choices for Eritrean homes.
Advantages of wired device circuitsWireless sensors, batteries, and rangeZones per loop and point identificationSeries, parallel, and EOL supervisionNon-supervised circuits and risksChoosing wiring vs wireless by projectLesson 8Power architecture: AC power, backup battery sizing, battery chemistry and maintenanceOutlines AC sources, transformer capacities, and wiring methods. Covers backup battery types, size, and care, including checks, replacement times, and factors impacting durability in Eritrean conditions.
AC source, transformer, and voltage dropAuxiliary power outputs and limitsBattery chemistry types and pros/consBattery capacity, load, and deratingRoutine battery testing proceduresStorage temperature and lifespan effectsLesson 9Motion detectors: PIR, dual-tech, pet immunity, mounting heights and coverageInvestigates PIR and dual-technology motion units, detection areas, and installation levels. Addresses pet tolerance, surroundings, and path testing to optimise detection while curbing false activations.
PIR sensing principles and opticsDual-tech PIR and microwave operationMounting heights and angle selectionPet immunity ratings and limitationsAvoiding HVAC and sunlight interferenceWalk testing and coverage verificationLesson 10Communication modules: cellular, IP (Ethernet/Wi‑Fi), dual-path and supervisionReviews cellular, internet, and combined communicators, including route priorities, security, and check intervals. Emphasises dependability, provider choices, and fulfilling monitoring and regulatory needs in Eritrea.
Cellular communicator types and bandsIP over Ethernet and Wi‑Fi modulesDual-path routing and failover logicSupervision intervals and test signalsEncryption, APN, and firewall settingsCarrier selection and signal strength testsLesson 11Backup power configurations: tamper and low‑battery reportingDescribes backup power planning, battery capacities, charger capacities, and operation times. Details tamper mechanisms, enclosure safeguards, and low-power alerts to keep systems secure during power failures.
Battery capacity and runtime estimatesCharger current and load calculationsPanel and enclosure tamper switchesLow-battery thresholds and reportingTesting under AC fail conditionsService intervals and battery replacement
