What does the closed circuit mean in CCTV?

Closed Circuit Television, or CCTV, is a type of security system that is used to monitor and record activity in a given area. The closed circuit refers to the fact that these systems are not connected to the public television network. CCTV systems can be either analog or digital, and they are often used in conjunction with other security measures, such as alarms and locks.

There are many benefits to using CCTV systems. They can deter crime by providing a visual deterrent to potential criminals. They can also help to identify and apprehend criminals after a crime has been committed. CCTV footage can be used as evidence in court cases, and it can help police and prosecutors to build a case against a suspect.

However, there are also some drawbacks to using CCTV systems. They can invade privacy, as they may record images of people who are not committing any crime. They can also be costly to install and maintain. Additionally, if not properly monitored, they may miss criminal activity altogether.

Frequently Asked Question

  1. What does the closed circuit mean in CCTV?

  2. CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. [1]

  3. What does a closed circuit mean?

  4. Definition of closed-circuit : used in, shown on, or being a television installation in which the signal is transmitted by wire to a limited number of receivers. [2]

  5. How does an open circuit differ from a closed circuit?

  6. An open circuit is one where the continuity has been broken by an interruption in the path for current to flow. A closed circuit is one that is complete, with good continuity throughout. A device designed to open or close a circuit under controlled conditions is called a switch. [3]

  7. When installing closed circuit televisions CCTV One must ensure that?

  8. 1 Description. Closed-Circuit Television (CCTV) is often in place in a Client location that is the incident scene. The CCTV system should record all activity carried out in the area(s) that the CCTV system covers. [4]


The closed circuit in CCTV means that the cameras are not connected to the internet and cannot be hacked. This is good for security because it means that your footage is safe from prying eyes. However, it also means that you cannot view your footage remotely, which can be a downside.

Read  Can you wire a security camera to a light?

Sources –

  1. https://www.techtarget.com/whatis/definition/closed-circuit-television-CCTV
  2. https://www.merriam-webster.com/dictionary/closed-circuit
  3. https://www.allaboutcircuits.com/textbook/direct-current/chpt-1/resistance/
  4. https://www.sciencedirect.com/topics/computer-science/circuit-television

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