CCTV : Introduction

Introduction to CCTV Systems, Equipment and Accessories




Closed-Circuit Television (CCTV) also  known as Video Surveillance is used to capture and record or transmit captured images or videos to a specific device or place.These CCTV Systems are built by interconnecting  DVR unit (or Network video recorder (NVR)), Monitor, Camera, Video Baluns, etc.. Digital Video Recorder (DVR) or Network Video Recorder (NVR) unit is the main equipment used by the system and it is used to view captured videos, configure the system and to playback the stored videos. Storage devices are need to store the images ( Videos) it captures thru the cameras and  generally fixed inside the unit. You can store captured videos on to it and need to configure the unit to overwrite the stored files as necessary to recycle the storage capacity.


By connecting DVR or NVR with a internet connection you can view, configure and playback remotely, if needed. DVR’s are used to connect Analog camera’s and NVR’s are used to connect IP camera’s. Generally there are 4, 8, 16 & 32 Channel DVR’s in the market..

Currently CCTV cameras are capable to connect to a network through the wireless signals and includes a microphone to hear the sound.


Major CCTV Equipment Brands available in Sri Lanka



CCTV Surveillance Systems should be Properly Installed and configured by a professional technician to get the advantages from that system. If properly configured you can send signals  to a central monitoring center in a remote location to alert them on such activities. If so they can alert Emergency centers or near by police stations to protect the secured area.

Lanka4Us – Professional ICT Services is proud to support you on installing and configuring CCTV Equipment’s to protect your valued assets. Feel free to contact us for your requirements. Drop your mail to and will contact you as soon as possible. We have professionally qualified team with more than 5 years experience.




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