How to re-focus lens for PTZ camera
You have to do the following two steps:
Enter 111, then click on RECALL.
Enter 222, then click on RECALL.
How to initialize the PTZ board in the camera
You have to do twice below the command:
Enter 64, then click on RECALL
Enter 62, then click on RECALL
How to turn on and off human tracking from PTZ control command
Enter 100, then click on RECALL to start the tracking human.
Enter 103, then click on RECALL to turn off the tracking human.