CCTV Cable
Coaxial Cable
Coaxial cable has proper electrical features to transmit the video signals from the camera to the monitor. Among various coaxial cables, RG59/U is most common with a 75-ohm impedance and can be installed up to 250m distance without loosing the video quality. This cable is usually connected by BNC connectors at both ends.
RG59 “Shotgun Cable”
This cable is RG59 with a 2 Core cable joined along its side, giving it the look of a shotgun, hence the name. This cable is usually more expensive but it is easier to work with and alot neater looking. This is also capable of running lenghts up to 250m.
Fiber-Optic Cable
Fiber-Optic Cable is not affected by electrical interference and has no problem even in contact with high-voltage power. It transmits video signals with extremely high efficiency and can run up to miles. The problem is that it is expensive and difficult to handle.
RCA Cable
RCA cable is not standard in the industry but is used a lot, specially for short distances up to 250ft. Twisted wire from 14 to 24 AWG (American Wire Gauge) with RCA connections at both ends will work as RCA cable. Even though its transmission quality is not as good as Coaxial Cable or Fiber-Optic, RCA cable is widely used because it is very easy to handle and has no problem of loosing video signal up to 250ft distance.
DIN Cable
Most observation systems which are pre-assembled at the factory have DIN cables with DIN connectors at both ends. DIN cables have 5 or 6 wires inside the configuration of which is, for example; wire 1 is for video, wire 2 is for audio, wire 3 is for power(12VDC, positive), wire 4 and 5 are for speaker(positive and negative), wire 6 is for ground. Mini DIN cable, which is used for mini camera package, comes with 4 wires inside. DIN cable, large or mini, can run up to 100m distance without loosing the video quality.