HIKVISION DS-2DY9250IAX-A User Manual page 124

The RS-485 serial port is used to control the PTZ of the camera. The configuring of the PTZ
parameters should be done before you control the PTZ unit.
Note:
RS-485 function varies depending on different speed dome models.
Steps:
1. Enter RS-485 Port Setting interface:
Configuration> System > System Settings > RS-485
2. Set the RS-485 parameters and click
Note:
The Baud rate, PTZ Protocol and PTZ Address parameters of the camera should be exactly the
same as those of the control device.
VCA Resource
Purpose:
VCA Resource offers options to enable certain VCA functions and hide others. It helps allocate
more resources to the wanted functions. A reboot is required after setting the VCA Resource.
Steps:
1. Enter the VCA Resource interface:
Configuration> System > System Settings > VCA Resource
2. Select a desired VCA combination.
3. Click
effect.
Notes:

VCA Resource function varies according to different camera models.

VCA options are mutually exclusive.

The function may not be supported by some camera models.
About
Click View License, you can check Open Source Software Licenses.
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Figure 6-51 RS-485 Settings
to save the settings. A reboot is needed for the settings to take
to save the settings.