Control cables are usually referred to as multi-core cables for controlling pan/tilt and motorized variable lenses. One end is connected to the pan/tilt of the controller or decoder, and the motorized lens is controlled. The terminal is connected directly to the corresponding terminal of the pan/tilt and motorized lens. Since the control cable provides DC or AC voltage, and the distance is usually short (sometimes less than 1m), there is basically no interference problem, so there is no need to use shielded wires. Most commonly used control cables use 6-core or 10-core cables, such as RVV6-0.2 and RVV10-0.12. The 6-core cable is connected to the upper, lower, left, right, automatic and common 6 terminals of the PTZ. The 10-core cable includes the zoom, focus and aperture of the motorized lens in addition to the 6 terminals of the PTZ. , 4 common terminals. In the closed-circuit television monitoring system, the control cable from the decoder to the pan/tilt and the lens is generally not required because of the short distance; the distance from the controller of the central control room to the pan/tilt and the electric lens is tens of meters. More than a few hundred meters, the control cable needs to have certain requirements, that is, the wire diameter should be thick, such as RVV10-0.5, RVV10-0.75.
  The sound monitoring cable generally uses a 4-core shielded communication cable (RVVP) or a Category 3 twisted pair UTP with a cross-sectional area of ​​0.5 mm2 per core. In the absence of interference, it can also be selected as unshielded twisted pair, such as Category 5 twisted pair (4 pairs and 8 cores) commonly used in integrated wiring; because the audio signal of the monitor head in the monitoring system is transmitted to the central control room. The point-to-point wiring method adopted is transmitted with high voltage and small current, so an unshielded 2-core cable can be used, such as RVV2-0.5.