Home
dvr
Q&A

CCTV Related Question and Their Answers.

Hi all, here I put some interesting question and answer about CCTV technical and non-technical Question and Answer.
 If you want more questions and answers please put them in the comment.

QnA banner




Question:

What is CCTV?

Answer: 

CCTV stands for Closed-circuit Television, which is a setup of video cameras to transmit a signal to a specific place or control room on a limited set of monitors or television.

Question:

What is a BNC Connector?

Answer: 

BNC stands for Bayonet Neill-Concelman, which is a CCTV connector that is used in connection with coaxial cable to Analog cameras.


Question:

How to Connect a UTP cable or Cat6 cable to an Analog camera?

Answer: 

With the help of the Video Balun connector, you can connect a UTP cable to an Analog camera.

Question:

What are Video Baluns in CCTV?

Answer: 

Video balun is a CCTV connector that can connect with a UTP(Unshielded Twisted Pair) cable and Analog camera. Generally, IP cameras can connect with a UTP cable but with the help of this connector, you can connect with an Analog camera with a Cat 6 cable.

Question:

What is a Hard Disk Drive?

Answer:  

A Hard Disk Drive is a storage device generally used to store media and data. In CCTV we put in DVR or NVR inside for storage of surveillance video and audio.

Question:

Which are the top CCTV companies in the world?

Answer: 

Some of the top CCTV or video surveillance companies in the world are:

1: Hikvision
2: Dahua
3: UniView
4: Axis
5: Tiandy
6: Vivotek
7: Hanwha Techwin
8: Motorola 
9: Streamax
10: Avigilon and CP-plus

Question:

What should be done when the CCTV footage is not displayed on the monitor?

Answer: 

If the CCTV footage is not displaying on the monitor, you should go through some simple steps given in the following points...

1: Check the Television video input.
Most televisions have multiple video inputs such as HDMI, VGA, COAXIAL, RGB and maybe more. you should be sure that the DVR/NVR video output connects with the monitor video input and should also select the same with the remote.

2: Check the condition of the cable connected to both devices. It's maybe HDMI or VGA.

3: Check the VGA/HDMI resolution of the Device.
Sometimes device is selected for high resolution and the television has a lower resolution support so in that case, you should access your DVR or NVR from the computer With the help of an IP address you can log in and get all settings of the devices and set the appropriate resolution television need.

Question:

What is the default password of ZKTeco time attendance devices?

Answer: 

The default IP address of the Zkteco devices like time attendance, biometric and access control website is 192.168.1.201.

Question:

What is 4K?

Answer:

4K is a resolution standard which is often denoted as 3840X2160 pixels used commonly in TVs, monitors, cameras and streaming services.
It delivered much higher resolution and clarity than 5 Megapixel and 1080p.

Question:

How many pixels are in 5 Megapixels?

Answer:

1 Megapixel is equal to 1000000 pixels. so 5 Megapixels is simply 5000000 pixels.
But in the case of CCTV camera resolution, 5 megapixels are defined like this.
In 4:3 image ratio or landscape ratio: is 2592*1944 pixels and 
in the portrait ratio the resolution is 1944*2592 pixels.


Post a Comment