User Manual for Commercial Series Net DVRPage 48 Total 1215.4 Main or Aux output to control PTZYou can press 【Main/Aux】 button to enter into “Main” or “Aux” output control mode andpress 【PTZ】button to control one PTZ.Please note if you enter into “PTZ” control mode, 【Main/Aux】button is not effective untilyou press 【ESC】button to exit PTZ control mode.Only the users that have “Parameters Setup” right need read this chapter. When the followingparameters are modified and saved, you must reboot the DVR to make the new parameterseffective. Other parameters do not require you to reboot.