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What are analog systems?
Analog camera systems refer to systems in which the image signal is transmitted as analog. This image signal has several names: FBAS, CVBS, TV signal, composite, etc.
The main formats are PAL and NTSC.
How are analog systems controlled?
High-performance cameras, such as our ExCam miniZoom, can be controlled. In this case we use not analog but rather digital interfaces bit-series (RS-232, RS485, RS-422) in a protocol language (VISCA®, PELCO®, Panasonic®).
What are the advantages of analog camera systems?
Unlike IP camera systems, analog camera systems are real-time. This means that the images appear on the monitor at the same time as they occur.
What are the drawbacks of analog systems?
Video servers are used to convert analog image signals into digital network video streams. These are available in a wide range of sizes from various manufacturers. They are also available as small circuit boards installed directly into the camera or as flexible 19-inch expandable solutions.
The video server solution that works best for you depends on many planning factors:
Are analog cameras already in use and, if so, where?
What is the installation distance in the Hazardous Area?
Is Ethernet already available in the factory?
Will the plant be expanded later?
IP camera systems or CCTV systems are used when image data or other voice information is transmitted using the TCP/IP protocol (IP Video, Voice over IP). In the long run, IP camera networks will replace analogue camera networks with the exception of a few
specific applications. The main reasons are:
Complex camera networks need to be planned in detail. Settings such as network capacity utilization, WLAN bridges, media converters, processor load, etc. play an important role. Our expertise lies in the planning of complex camera networks.
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