UMD 9000 series User Manual page 33

Note:
 IPC itself needs to support PTZ function, the system supports ONVIF PTZ protocol
Standing Orders.
 PTZ function of this system supports multiple control modes, including in
accordance with step length movement, continuous movement, according to the
percentage of step length movement and continuous movement and other
functions, PTZ control function of this system supports multiple modes, including
in accordance with step length movement, continuous movement, according to the
percentage of step length movement and continuous movement and other
functions, IPC of different manufacturers to achieve ONVIF PTZ movement patterns
will be different, try to select the matching mode to control, or it may appear
ineffective control. Similarly, the movement modes above are not supported by the
IPC of all manufacturers please contact the manufacturers' technical support to
confirmation.
 Cruise and automatic cruise function is supported by only a few models of IPC,
ONVIF models using this function may be invalid.
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UMD NVR User Manual