Chapter 18: Using the web browser 
TruVision NVR 22 (S/P) User Manual  139 
Control a PTZ dome camera via the web browser 
The web browser interface lets you control the PTZ functions of a dome camera. Click a 
PTZ dome camera and use the PTZ controls on the interface to control the PTZ 
functions. 
Figure 34: PTZ controls 
 
1.  Directional pad/auto-scan buttons: Controls the 
movements and directions of the PTZ. Center button is 
used to start auto-pan by the PTZ dome camera. 
2.  Adjust speed of PTZ dome camera. 
3.  Adjust zoom, focus, and iris. 
4.  Turn on or off the camera light (if available on the camera). 
5.  Lens initialization: Initialize the lens of a camera with a 
motorized lens, such as PTZ or IP cameras. This function 
helps to maintain lens focus accuracy over prolong periods 
of time. 
6.  Start or stop camera wiper (if available on the camera). 
7.  Auxiliary focus: Automatically focus the camera lens for the 
sharpest picture. 
8.  Start selected preset/tour/shadow tour (depending on 
function selected). 
9.  List the presets available. 
10. List the preset tours available. 
11. List the shadow tours available. 
12. Modify brightness, contrast, saturation, and hue values.