In the security industry, low voltage cables used to transmit video signals, control signals, and other data information are collectively referred to as security monitoring cables. These cables can be divided into video cable, RF cable, shielded and unshielded cable, signal cable, control cable and other models.
In the actual project, video cables are most popular used. How to identify the quality of the video cable?
1, The Visual appearance of cable: the jacket, braiding, conductor, adhesion between the conductor core and insulation etc.
2, Transmitting performance testing: data of DC resistance, attenuation characteristics in high or low frequency, observing the live signal etc.
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