Product specifications, parameters, functions of the device can change without notice! 26IDENTIVISION IP NVR INSTALLATION GUIDE18. picture Output adjust6.10 PTZ controlOperation interface is as followed. The functions include: PTZ direction control, step, zoom, focus, iris, setupoperation, patrol between spots, trail patrol, boundary scan, assistant switch, light switch, level rotation andso on.19. picture PTZ controlNote: Decoder A(B)line connects with DVR A(B)line. The connection is right. Click [main menu] >[system configuration] >[PTZ setup] to set the PTZ parameters. The PTZ functions are decided by the PTZ protocols.[SpeedSet] the PTZ rotation range. Default range: 1 ~ 8.[Zoom] Click -/+ button to adjust the zoom multiple of the camera.[Focus] Click -/+ button to adjust the focus of the camera .[Iris] Click -/+ button to adjust the iris of the camera.[Direction control] Control the PTZ rotation. 8 directions control is supportive.(4 directions in Front panel issupportive )[High speed PTZ] Full-screen show channel image. Left press mouse and control PTZ to rotate orientation.Left press mouse and then rotate the mouse to adjust the zoom multiple of the camera.[Set] Enter the function operation menu.[Page switch] Switch between different pages.