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More information: https://www.euspyshop.com/product/series-network-keyboard-supports-various-cameras-nvrs-dvrs/

A CCTV control keyboard is a device used to control and manage cameras in a CCTV (closed-circuit television) surveillance system. These keyboards are typically used to operate PTZ (Pan, Tilt, Zoom) cameras, as well as adjust camera settings, and can be connected to the CCTV system via RS-485, Ethernet, or other protocols. Here are the key features and functions of a CCTV control keyboard:

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