Instruction manual
15
CONTROLLING THE CAMERA’S OSD REMOTELY
DWC-HV421D and DWC-HV421TIR, combined with Digital Watchdog’s VMAX HD DVR offer
the unique feature of controlling the camera’s OSD menu, focus and zoom all from the DVR with 
no additional cables other than the BNC cable. 
To setup the camera for remote DVR controlling, make sure these steps are followed:
1. Go to the camera’s OSD menu and select ‘Proprty’. Make sure the camera is set to NDT-AUX 
 Protocol. 
2. If you have multiple DWC-HD cameras you want to connect to the same VMAX HD, be sure to 
 assign each camera a different ID. See page 19 for more information. 
3. On the DVR side, go to the main menu and select- Device- PTZ. Enter the channel of the camera
 you wish to setup. Make sure the ID you set in the DVR corresponds witht e ID you have assigned 
 the camera. 
4. Select “FASTRAXII COAX” in the DVR. 
5.Please refer to the DVR’s manual for additional information on setup and camera control. 
1  PROPERTY
CAMERA ID
TITLE(1-)
DISPLAY 
PROTOCOL
BAUDRATE
RETURN     
0
NONE 
NDT-AUX
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