The idea of drilling holes through the walls of your home to run video and power cables for a security camera system might seem difficult and daunting; however with a little bit of information you might find it to be fairly simple and an enjoyable project.
Get the right cables. RG59 Siamese Cable, is the industry standard type of cable used for most CCTV installs. This cable consists of one video cable and one power cable (Positive and Negative), thus the name Siamese.
Find the right location for your cameras. There is a special CCTV design software to choose a right location for CCTV camera. For example you can use a demo of IP Video System Design Tool. You can import your floor plans/site plan into this software and then add cameras, choose desired camera coverage and get angle of view, required lens focal length and 3D mockups.
For most homes cameras are installed where the roof meets the walls of the house. This is a good location because it shelters the cameras from the elements (Wind, rain, snow and sun). Also, cameras placed near the roof usually have a better field of view and are less likely to be vandalized. Another advantage is simplified cable runs Power & video) since many homes have a small gap or hole where cables can be run between the roof and the wall.
Find a point of entrance from the outside of the house to the inside. Most homes have an attic which is a great place to run all your RG59 lines into.
Designate one location for your DVR and Monitor to be stationed.
Bring all the RG59 lines into that room from the attic. If you purchased the RG59 cable with BNC connections already attached then at this point you would connect these to the DVR.
If you purchased a bulk roll of RG59 cable without connections you would need to purchase the BNC connections and crimp each end on, then connect to the DVR.
These cameras require DC voltage for their power supply. You can either connect the power supply line from each camera separately into an outlet (using pig tails) and an AC Adapter, or you can get an AC/DC power supply box, plug all the camera power lines into the box, then connect one AC power line from the outlet to the box.
It is recommended that the DVR be connected to your Monitor before turning on their power supply.
This can be an easy and entertaining project once you have the appropriate tools and information.