CCTV systems are now modernizing and turning from analog to IP. If you have made significant investments in an analog CCTV system and want to transition into an IP based system, you can still use your analog cameras. By using our network video servers also known as video encoders, you can digitize video signals from your analog camera, transmit them over an IP network and record them in a network video recorder based CCTV system. In certain situations, using network video servers can bring significant savings not only by reusing equipment you already have but also by emulating the functionality of higher priced IP cameras. For example, a common application of network video servers is in converting analog PTZ cameras into IP PTZ cameras. Instead of purchasing an IP PTZ camera which costs about twice an analog PTZ camera, a video server may be used in conjuction with an analog PTZ camera to get the same feature and functionality as an IP PTZ camera.