Pure simulation system
Advantages: the video operation with good results, true color, high-resolution, operating without any sense of lagging behind; safe, completely non-existent IP network face risks; not occupied by the user of any network resources; IP network will not the impact of the interruption of server operation; pure hardware environment, plug-and-play, simple installation, low maintenance.
Inadequate: the distance the analog signal by the restrictions, if more than distance, it can not operate. (Currently 300 meters can be achieved has been the signal transmission) and other shortcomings.
Pure Digital System
Advantages: all users to operate through the IP network, with remote access capability; capacity is relatively easy.
Shortage: the effect of all users by the network of video quality can not be true color and high-resolution, there are certainly lagging behind a sense of the size of network bandwidth and affect the sense of lagging behind; IP resources occupied by each piece of equipment must be occupied by an IP; need increase the independence of the user authentication system to increase the amount of the maintenance of debugging, if the certification
system failures will not be able to work;
Analog-to-digital hybrid system
It will integrate the advantages of a purely analog and purely digital all the advantages of both.
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