PLANET ICA-HM127 - Manual (Page 56)

4.8 RS-485
If you mount the IP camera on pan-tilt camera cradles that support pan-tilt control via RS-485
connection, you can use this function to control pan-tilt camera cradle so you can control the
orientation of IP camera from remote place.
Here are the descriptions of every setup item:
Item Description
Enable RS-485 Check this box to enable RS-485 functionality.
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