DVR systems DVR31xxH Series - Manual (Page 17)

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Figure 2-2 4-channel
Figure 2-3 8-channel
Figure 2-4 16-channel
Please refer to the following sheet for detailed information.
1 Video CVBS output
2 USB Port
3 Video Input
4 Audio Input
5 Audio Output
6 Video VGA output
7 Network port
8 RS 485 port
9 Power input port
10 Power button
11 GND
2.3 Connection Sample
Please refer to Figure 2-5 for mini 1U series product connection sample.
The following figure is based on one 16-channel series.