How To Install a CCTV Camera System

Once you have purchased a CCTV camera system, you need to install it. Professional technicians might cost you money and increase the security risk, so why not try installing it yourself?

Setting up

  • You need to plan where you want to place the CCTV cameras. Consider the lighting and the distance of the camera from the monitored object. The greater the gap to the object, the longer must be the focal lens length. To be safe, use varifocal lenses. Varifocal lenses have an adjustable focal length that allows change of focal length within a specific range.
  • Use the least number of cameras by placing a certain number in tactical locations. Avoid intersecting camera aspects. Never install cameras with the source of light directly in front of them.
  • After you have determined the camera's positions, make sure that it is possible and practical to run the cable to each camera location.


  • Plan how the wires are fixed in such a way that the cable lengths are lessened and generate Security camerasignals of good quality. There should be a foot of space between cable wires and power lines.
  • Keep wire lengths below 400 feet. Invest in good cables, specifically the combo cable (Siamese type), which transmits both video and power. It is compact and runs seamlessly.
  • It is good if you allocate extra cable loops at both camera and monitoring locations for camera adjustments.

Camera mounting

  • Most CCTV cameras come with mounting screws and bracket. Attach the bracket firmly. Fasten the camera to the bracket and adjust camera position.
  • A typical camera is powered by 12v DC or 24v AC. Power connections will differ per type of power supply and input supply, so observe polarity rather than risk destroying the camera. Red or white cables are for positive while black is for negative terminals.
  • Hook up the connector and repeat steps for each camera.

Monitor and recorder connection

  • You have to install connectors on this side. Make room for the monitor and recorder so that you can determine the power supply location.
  • Power supply should be mounted near the DVR video inputs. Separate the power conductors from the Siamese cable and run it to the power supply. Watch the polarity as you did with the cameras. Do not plug the power supply into the power outlet yet.
  • Connect the DVR to the monitor. Protect the equipment from power spikes with a voltage regulator. Make sure you have a back-up in case of power outage.

Power on and final adjustments

  • Turn on your cameras, then your monitors, and finally your DV recorder. Go over each camera's view and adjust camera position accordingly.

A good CCTV system defines the area's level of security. It provides evidence in catching the culprits red-handed. They provide a sense of safety to an area, in that persons who know that their actions are being watched will avoid a deed that might incriminate them.


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