1, surveillance cameras indicate DC12V / AC24V general, what kind of power that choice?
　　A: Select AC24V monitor power, because the same distance, the higher the voltage, the smaller the loss. Voltage is high, the load can be relatively sufficient voltage. Meanwhile, the AC 24V, the commissioning of the camera, you can choose the power synchronized so that the entire image field monitoring system pilot different devices can keep pace.
2, how to configure the monitoring system cameras Power?
　　A: This question often young and inexperienced engineers make difficult, many programs are found in the implementation of the original design of the power capacity is not enough, the need for additional equipment, resulting in passing phenomenon and Party. In fact, because the camera at the moment of starting, starting current, consumption of long-distance transmission plus engineering, so surveillance cameras need power, not simply the sum of all the rated power of the camera. The correct approach is the monitoring system cameras to the rated power of the sum multiplied by 1.3 times, this is the camera actually needed power, and about 30% of the loss plus; plus 30% of the final margin, as future expansion use.
3, the configuration of the power supply surveillance cameras, the most taboo it?
　　A: The most taboo: the whole monitoring system share a power supply.
The following reasons:
　　1) The system maintenance, often need to turn off the power. All the cameras at the same time the power is turned instant start, starting current is particularly large, a great impact on the power, a serious burn power,
　　2) All of surveillance cameras share a power supply, when the power supply fails, the entire closed-circuit monitoring system to a standstill. In particular, some important entrance image can not be monitored, likely to cause unnecessary trouble.
4, the choice of power supply surveillance cameras also need to pay attention to what the problem?
　　A: First: When connected to the power supply to the camera, do not put distance camera and the close proximity of surveillance cameras connected to the same power source. If connected to the same power supply voltage is high, and will burn close camera, the power voltage is low, the distance of the camera no images. Should try to compare long distance surveillance cameras connected to the same power supply, the closer the camera is also connected to the same power source.
　　Second: If the monitor too far away, you need to configure a higher voltage power supply, such as 30V, 36V, etc., or even directly for 220V AC to the front and then swing.