In PTZ cameras, how are commands typically sent?

PTZ (Pan-Tilt-Zoom) cameras often utilize a single cable for both power and control commands, along with video transmission. This is made possible through technologies like Power over Ethernet (PoE), which allows data and electrical power to be delivered over the same Ethernet cable. This integrated approach simplifies installation and reduces cable clutter, making it more efficient for surveillance systems. Using one cable for multiple functions ensures that the camera can both receive commands for movement and send video feeds without requiring additional cabling infrastructure.

Other methods mentioned, such as using separate network cables, wireless technology, or manual controls alone, do not capture this dual functionality provided by the integration of control commands with video transmission.