Use digital cameras and digital hard disk video recorders to connect analog cameras embedded in the past with cables. Can I use two digital-to-analog converters?

Digital cameras and analog cameras can be connected to a video recorder at the same time, which is called a hybrid hard disk video recorder.

Through the definition of hybrid digital hard disk video recorder (H-DVR), it is not difficult to see that the hybrid hard disk video recorder is a cross-border product, which has played a good transition from the digital video surveillance era to the network video surveillance era. Moreover, because both analog signals and newly-built high-definition network videos can be accessed, the high-definition transformation can be carried out at a low cost, which well protects the investment of users and greatly promotes the process of "high-definition" of video surveillance systems. Its appearance fills the blank stage of digital video monitoring technology from analog-digital mixed mode to all-IP monitoring.