User guide

24
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RS-485 Communication
z For PTZ control, connect the cable(s) to your keyboard or DVR. Note that the total length of the
communication cable between a controller and the camera(s) on the same communication line must be
less than 4,000 feet (1,200 meters).
Figure 2-4 Connection of RS-485 Communication
 Video
z Use BNC coaxial cable only.
Controller / DVR
RS-485
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Installation