What is PTZ query data return? What is PTZ real-time data backhaul?

PTZ query data transmission means that the program or control device sends query instructions to the PTZ, and the PTZ responds to the data transmission as needed after receiving the instructions;

The real-time data transmission of the PTZ means that the PTZ outputs the current horizontal and vertical angle position data of the PTZ according to a certain time interval [frequency];

According to different models of our company's load-bearing PTZ, the real-time return frequency of the PTZ is between ≤50~100ms [different models vary];

The PTZ query data transmission only requires a half-duplex RS485 communication interface, but the PTZ real-time data transmission must use a full-duplex RS422 communication interface.