This type of coaxial cable supplies power to an analog camera, whilst also carrying the signal to the DVR camera recorder.Ĭoaxial cables can reach a maximum distance of 90m or 300ft in length any longer than this and the signal begins to degrade, compromising the video quality. ![]() It is possible to run power cables to analog cameras from a nearby power outlet, but there is a second cable type that offers a more streamlined option.Ī siamese cable combines a coaxial cable and a power cable into one casing, reducing the hassle and mess of numerous cables. However, these DVR security cameras also need a power supply to work. The first are standard coaxial cables, which only transmit analog signal as a frequency. There are two kinds of coaxial cable that you can use to connect an analog camera with DVR recorder technology. It is converted by a piece of equipment known as an analog-to-digital converter ( ADC), also known as an AD encoder. Along with an analog camera, DVR recorder and coaxial cable, some more advanced hardware is needed to encode the signal. CCTV DVR systems tend to be analog cameras, connected to the security camera recorder via coaxial cables. DVR system components: analog security cameras and coaxial cablesĭigital video recorders convert analog video signal into a digital format. Analog video signal needs to be digitally encoded before it can be stored, so a DVR camera recorder encodes the signal, stores it, and also decodes it for remote viewing on demand. ![]() A digital video recorder, or DVR, is generally used with analog security cameras.
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