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

1. (CLOSED CIRCUIT TELEVISION)

2. What is CCTV?
• Closed circuit television (CCTV) system is the
use of video cameras to transmit a signal to a
specific, limited set of monitors.
• It differs from broadcast television in that the
signal is not openly transmitted, though it may
employ point to point wireless links.
• CCTV is often used for surveillance in areas
which need security, such as banks, casinos
and airports or military installation.

3. CCTV System Types
CCTV systems are broadly divided into two
types.
There are:
1. Wired CCTV system.
2. Wireless CCTV system.

4. Types of CCTV System
Wired CCTV system-
It connects the camera to the recording device
and monitor with the help of coaxial cables or liber
optic cables. The signal transmitted over these
cables is then fed to the monitor.
Wireless CCTV system-
In this system a radio transmitter is attached to the
camera. A radio receiver is then attached to the
input on the monitor system.

5. CCTV Camera Types
CCTV cameras are being installed every where for purpose
of security and crime prevention and detection. There are
many type if CCTV cameras are available for this purpose.
These are:
Indoor camera
Outdoor camera
Dome cameras
Day/ Night camera
Discreet cameras
Network/IP
Wireless camera

6. DVR Back Side