Basics of Light Current Systems for Electrical Engineering

Learn about fire alarm, MATV, telephone, data, CCTV and sound systems for electrical engineering

What's Inside

Welcome to our course "Complete Light Current Course For Electrical Power Engineering"


Learn about the fire alarm, MATV, telephone, data, CCTV, and sound systems for electrical power engineering.


What are you going to learn in this course?


In Fire Alarm System


  • Components of the fire alarm system.
  • Sensors and detectors as smoke, heat, multidetector,..etc used in a fire alarm system.
  • Outputs of the fire alarm system as a bell, strobe light, or horn.
  • Types of modules used in the fire alarm system.
  • Types of fire alarm control panels as conventional, analog addressable, addressable, and wireless.
  • Types of cables used in the fire alarm system.


In CCTV System


  • Camera selection in CCTV system.
  • Types of the camera according to fixed or movable, resolution, and focal length.
  • Management of CCTV system by using quadrature, multiplexer, matrix switch, and DVR.
  • Different cables used in the CCTV system.


In Telephone System


  • Types of telephone systems.
  • Components of the traditional telephone system.
  • Cables, outlets, and different frames used in the telephone system.


In Data system


  • Function of the data system.
  • Data system outlet and different types of cables used.
  • Patch panel, rack, and switches used in the data system.


In MATV system


  • Components of MATV system.
  • Types of antennas used and frequency.
  • MATV switches, launch amplifier, combiner, and more components.
  • Cables used in the MATV system.

In Sound system


  • Components of the sound system.
  • Types of speakers used.
  • Selection and function of the power amplifier.
  • Function of attenuator, rack, and matrix switch in sound system.


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Ahmed Mahdy

I am Ahmed Mahdy an electrical power engineer, researcher, and the founder of Khadija Academy. I am also an electrical bestselling instructor and have helped more than 70,000 students from 191 countries achieve career success with simple and easy courses in the last 7 years.​ In addition to having a YouTube educational engineering channel called" Khadija Academy", where I regularly post videos related to electrical engineering. In 2018, I was nominated among the top 10% of instructors on Udemy, besides currently ranking among the top instructors in the engineering sector of Udemy.


Some of my published research works in the top electrical engineering journals worldwide:


1- ​Transient stability improvement of wave energy conversion systems connected to power grid using anti-windup-coot optimization strategy - Energy Journal - Impact Factor of 9.0.


2- Nonlinear Modeling and Real-Time Simulation of a Grid-Connected AWS Wave Energy Conversion System - IEEE Transactions on Sustainable Energy - Impact Factor of 8.8.


3- Modeling and optimal operation of hybrid wave energy and PV system feeding supercharging stations based on golden jackal optimal control strategy - Energy Journal - Impact Factor of 9.​0.


4- State-of-the-Art of the most commonly adopted wave energy conversion systems - Ain Shams Engineering Journal - Impact Factor of 6.0.


5- Optimal Design of Fractional-Order PID Controllers for a Nonlinear AWS Wave Energy Converter Using Hybrid Jellyfish Search and Particle Swarm Optimization - Fractal and Fractional - Impact Factor of 5.4


6- Dynamic performance enhancement of nonlinear AWS wave energy systems based on optimal super-twisting control strategy - Ain Shams Engineering Journal - Impact Factor of 6.0.

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