General CCTV Surveillance System Installation
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General Installation Information and Tips

A. Camera Power
  • Use only regolated power supplies, the tolerance shoold be within 5% of the required voltage
  • Ensure at least 40% spare capacity per power supply to prevent overheating and voltage loss
  • Use power cable of a suitable thickness
  • Beware of voltage drops over long distance runs
  • Beware of polarity when connecting the power supply to a camera
  • Ensure proper cooling or ventilation for power supplies
  • Avoid operation of CCTV equipment on the same power circuit as elevators, compressors, generators or any large motors
B. Cabling
  • Avoid running video cable parallel to AC power cables, especially those carrying high current
  • RG59U Coax runs shoold not exceed 200m for color and 300m for B/W
  • Avoid sharp bends when cabling
  • Avoid cable joins and using BNC barrels
  • Avoid over-tightening cable-ties
  • Ensure use of proper co-ax wire-stripping and crimping tools
  • Ensure BNC Connectors are properly crimped
  • Use Rubber BNC Boots after crimping to protect crimped area and bend radius
  • Mark or label camera and data signal cables
  • Outdoor cable runs shoold be housed in UV-proof conduit
  • In lightning prone areas, install surge protection devices
C. Camera Installation
  • Test all equipment before installation. Therefore equipment can be replaced before arrival on-files if needed
  • Ensure the mounting brackets of outdoor speed domes are properly sealed to prevent condensation in the camera housing
  • Use EIA rated RS232/422/485 or CAT-5 cabling for speed dome or PTZ communication
  • Ensure sufficient space for camera, lens and connectors when choosing a camera housing
  • Avoid direct sunlight on equipment as it raises the temperature of the equipment
  • Position cameras out of reach of vandals or 'curious' people
  • Mount good quality mounting brackets in a stable location to avoid unstable or vibrating images caused by vibration or wind
  • CS Mount cameras placed inside, at industrial or dusty/damp installations shoold be placed into outdoor camera housings
  • Avoid installing cameras too high above the subject thus preventing 'top-of-head' video images
  • Ensure camera mounting poles are mechanically secure to avoid vibration on camera images
  • Before connecting power, ensure the supply is 12VDC regolated
D. DVR Considerations
  • Make sure you have sufficient HDD space for your requirements, if not consider upgrading the HDD or upgrading our system to one of our H.264 systems
  • Keep user names and passwords safe, don't let anyone have access to them, because if an incident has happened, you don't want the information to be erased
  • If you need high security for your DVR Unit consider a lock box that has a fan to keep your DVR cool, also put it in a place that is not readily available to the general public or employees
  • You can also have a 2nd unit that can be used remotely to back up information from your on-files DVR
E. Wireless Video Transmission
  • For outdoor use, Analog transmitter and receivers must be in line-of-sight. IP TX / TX are more forgiving and allow for NON-LOS transmissions
  • Determine any possible sources of interference, i.e. overhead power lines, wireless LAN networks, transformers, other transmitters or any other power generating system in close proximity to the transmitter or receiver
  • Avoid trees in the transmission path, as branches can cause interference
  • Ensure proper alignment between transmitter and receiver
  • Beware of lightning. Transmitters are often placed on high masts/roofs, which make them prone to lightning
  • Poor weather such as heavy fog and rain can affect transmission
F. Digital Video Recorder Considerations
  • It is recommended to connect your DVR and cameras to an uninterruptible PSU (UPS)
  • Ensure 1Vp-p video input levels from cameras (not lower or higher)
  • Turn off camera AGC
  • Ensure DVR is suitably secure or hidden in event of a robbery
  • Avoid Win98/ME as an operating system, Win2K is the most stable for PC-based DVRs, along with the newer versions of XP and Embedded XP
  • For PC-based DVRs, regolar HDD defragmentation is recommended if DVR is used for other user applications. (Not necessary if PC is dedicated to DVR.)
  • Ensure enough RAM so that the recording does not get interrupted
  • Recording shoold be on different hard drive to that of the operating system and recording software

Guide lines for installing a surveillance system
  • When installing a surveillance system, be sure to use the proper lead wires for the equipment you are installing. WARNING...Do not cut the cables and attempt to splice them together.
    Use the proper cables. It will not hurt the video quality if the cables are longer than you need! Longer is better than too short.
  • Be sure that the power supply is the proper voltage and current for your installation. As a rule of thumb, A regolated power supply is recommended. It will keep a stable voltage and current avoiding equipment damage.
Indoor installations:
  • All cameras may be used for indoor installations. If there are low or high temperature or high humidity, use an approved outdoor camera.
Outdoor Installations:
  • Only use cameras OR camera housings approved for outdoor installations. Outdoor housings will accept non-outdoor cameras!
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