hi there
i buy a hikvision 4ch nvr hd and connect bullet ip camera via onvif protocol
video is streaming but ia cant receive any signal over 485 port for ptz controler
i attach a ptz controller to ip camera
how can i use rs 485 over nvr?
in setting i have 3 option for rs458
1 ptz
2 keyboard
3 rs 485
wich option must be set?