CCTV System - Close circuit television System Building Services Technology Ancillary Services

1. CCTV System
T.Jathursan
Ancillary Services
JF/BST/17/F/1/0017
2018-07-23

2. Contents
• What is CCTV system
• Components of CCTV system
• Type of CCTV camera
• DVR
• Simple CCTV block diagram
• Lens
• Focal length
• Monitor unit
• Cables

3. What is CCTV system
• Closed Circuit Television is the use of video cameras to
transmit a signal to a specific place, on a limited set of
monitors

4. Components of CCTV
system
• Camera
• DVR
• Monitor unit
• Lens

5. Type of CCTV camera
• Indoor camera
• Outdoor camera
• IR day/night camera
• Dome camera
• Bullet camera
• Vandal proof camera
• Hidden camera
• Pan Tilt Zoom (PTZ) camera

6. Indoor camera
• Indoor camera as its name
suggests used for indoor
security mechanism
• Outdoor camera is used for
outdoor places
• These camera have hard
shell vandal proof casings/
weather proof casing

7. IR day/night camera
• IR day / night camera are used for high alert security areas
were surveillance needs t happened day and night
• Example
I. Military personal parking
II. Military camps

8. PTZ Camera
• These types of CCTV cameras allow a person controlling the
surveillance of an area to move the camera remotely , usually
with an RF or wired controller
o Pan- Right to left
o Tilt- Up and down
o Zoom- close up zoom

9. Advantages of CCTV
Camera
 Traffic Monitoring
 Building and Ground security
 Maintaining perimeter security in medium to high secure areas and
installations.
 Bar/ Night Club
 Shop
 Schools

10. DVR – Digital Video
Recorder
• A DVR with a hard drive which will recorder and allow
playback of the video footage.

11. DVR back side ports
• Video input and output ports
• Audio ports
• USB ports
• LAN – network ports
• HTMA ports
• Power poets
• VGA ports

12. Lens
 There are 2 type of lens
 Fixed focal lens
This lens is don't change
 Varifocal
In varifocal lens size can be change

13. Focal length

14. Monitor unit
A monitor (or
other option ) for
viewing the live
and recorded
footage

15. Cables
Ethernet cable
• Cable connect the cameras
with the DVR
• It is used to connect the IP
CCTV camera to the NDVR
Coaxial cable

16. Cable connectors
RJ-45
BNC
For coaxial cableFor Ethernet cable

17. Simple CCTV
block diagram

18. Thank you