1. Basic concepts

2. CABD and SMATV systems

3. PBX and PA systems

4. Security systems

5. CCTV systems

6. Access control systems

7. Burglar & intruder alarms

[Powerpoint file in PDF format]

• Safety for extra low voltage circuit (5:18) https://youtu.be/fdxE8bl8Kmo
• SELV and PELV what is it? ? Learn the difference between the two types of transformer. (8:52) https://youtu.be/2_0fZpcDYGw
  
• What is PBX? (2021) (3:48) https://youtu.be/KviuXiNr_7w
• PA System, Public Address System, Block Diagram of PA System, Components & Requirements of PA System (28:33) https://youtu.be/dsVEeL1B1ls
• Introduction to CCTV (Video Surveillance) (6:14) https://youtu.be/ihmfla-5H28
• WHAT IS A CLOSED-CIRCUIT TELEVISION (CCTV) SYSTEM (12:33) https://youtu.be/Bc8ekh8Cvu0
  
• CCTV - Closed Circuit Television, Block Diagram & Components of CCTV, Working & Applications of CCTV (10:46) https://youtu.be/3xcnnhF6OVI
  
• Video understanding for security and surveillance (3:04) https://www.viisights.com/products/wise/
  
• Basics of Access Control (4:07) https://youtu.be/2QTFiQVdrgg
  
• Access Control with Temperature Monitoring (1:44) https://youtu.be/w49T2gpbz8Q

• Extra-low voltage - Wikipedia https://en.wikipedia.org/wiki/Extra-low_voltage
  
• Security Products https://www.police.gov.hk/ppp_en/04_crime_matters/cpa/sec_products.html
  
• CCTV - Designing Buildings Wiki https://www.designingbuildings.co.uk/wiki/CCTV
  
• Introduction to Access Control Systems https://www.silvaconsultants.com/intro-to-access-control-systems
  
• Introduction to Intrusion Alarm Systems https://www.silvaconsultants.com/intro-to-intrusion-alarm-systems
  
• Basic information on intruder alarm systems https://www.dipolnet.com/basic_information_on_intruder_alarm_systems_bib770.htm

• CA, 2012. Code of Practice for the Installation and Maintenance of In-Building Telecommunications Systems and In-building Access by Telecommunications Network Operators, Communications Authority (CA), Hong Kong. https://www.coms-auth.hk/filemanager/statement/en/upload/105/cop201202e.pdf
  
• Kennedy T. & Traister J. E., 2002. Low Voltage Wiring: Security/Fire Alarm Systems, 3rd ed., McGraw-Hill, New York. [HKALL]
• HK Police requirements for digital CCTV systems http://www.police.gov.hk/info/doc/cpa/CCTV%20English.pdf

• Extra-low voltage https://www.e-magnetica.pl/doku.php/extra-low_voltage
  
• Digital TV https://www.digitaltv.gov.hk/
  
• Satellites receivable by SMATV systems in HK https://www.ofca.gov.hk/filemanager/ofca/en/content_295/st_smatv.pdf
  
• Security and Guarding Services Industry Authority (SGSIA) http://www.sb.gov.hk/eng/links/sgsia/
  
• Access control - Wikipedia http://en.wikipedia.org/wiki/Access_control_system
  
• Access control in buildings - Designing Buildings Wiki https://www.designingbuildings.co.uk/wiki/Access_control_in_buildings
  
• Alarm Systems – An Overview http://www.shieldjournal.com/alarm-systems-an-overview/