Page 8
④fix the screw of hard disk ⑤connect the data wire ⑥connect the power wire
⑦cover the machine ⑧fix the co
ver
2.3 Audio and video input and output connections
2.3.1 Video input connections
The video input port is BNC connector plug. The demand of input signal is PAL/NTSC
BNC(1.0V
P-P
,75Ω).
2.3.2 Video output connections and options
The video output is divided into PAL/NTSC BNC(1.0V
P-P
,75Ω) and VGA output(selective
configuration).
Audio port is BNC connection.
2.3.4 Audio signal output
2.4
、
PTZ decoder connections
A. The grounding of the PTZ decoder and DVR must be shared otherwise the common-mode
voltage will lead to the PTZ control failure. The shielded twisted pair is recommended.
B. Avoid the entrance of high voltage. Make the layout reasonably. Take precaution from the
thunder.
C. In the outlying end connect 120Ω resistance paralleled to reduce the inflection and insure the
