A COMPARISON
Sep 13, 2014
Contents � Capability � Performance � Cost � Reliability � Summary Table � Additional Features � Demo Video Link
Capability � IP
Pros � Allow the ability to zoom into recorded video � Use one camera to cover a greater area without losing quality � Can be reviewed remotely via PC or Smartphone � Customisable video quality based on needs and storage capacity
Cons � Only supports up to 100 metres transmission distance (CAT 6 cable)
� HD-SDI
Pros � Full HD live viewing and recording � Recorded picture is 3 times larger than the size of Standard Definition cameras � Supports up to 200 metres transmission distance without an extender (RG59 cable) � Can be reviewed remotely via PC or Smartphone � Customisable video quality based on needs and storage capacity
Cons � Image quality can be affected by bad quality cabling
Performance � IP
Pros � Supports video resolution of 1080p (compressed) and higher Cons � Cameras require optimum lighting to produce a high quality image � Compression of video images requires larger amounts of data to be transmitted over a network
○ Compression rate and network bandwidth determines the quality of images produced � Image lag is totally dependent on the bandwidth available on the network
� HD-SDI Pros � Supports true 1080p video resolution (uncompressed) � Little to no image lag when viewing live and recorded footage
○ i.e. Allowing for more effective control of PTZ cameras
Cons � Must use both high-end HD-SDI cameras and DVR to realise full performance benefits
Cost � IP
Pros � Can leverage existing network cabling (Cat 6) � Fewer cameras required due to higher resolution images in a certain area Cons � Using existing network cabling will dramatically affect bandwidth to other devices on the network � Entirely new infrastructure and exclusive network required to realise full benefits � Dedicated IT department required to monitor and maintain network network health for constant
24/7 CCTV recording
� HD-SDI Pros � Ability to leverage current coaxial cable infrastructure from existing CCTV system � Plug an play installation with existing coaxial cable in place � Significantly lower installation costs and faster time to market of a fully operational system � Fewer cameras required to cover an area as HD picture is 3 times larger than a standard camera
Cons � Larger storage requirements for capturing video footage on a 24/7 basis
Reliability � IP
Pros � Can utilise existing IT infrastructure for storage and backup Cons � Recording can be compromised if there are interruptions to the IP network � When problems are being faced it can be difficult to isolate a problem quickly
○ Multiple points of failure – i.e. router, hub, switch, cable, camera, NVR, network bandwidth
� HD-SDI
Pros � Recording immune to network IP network interruptions as it is a stand alone system � Quicker turn around time in troubleshooting problems with the system
○ Limited to either DVR, cable, camera, power supply
Cons � DVR unit must be placed in a well ventilated area for adequate cooling in order to maintain
longevity of the system