IC Realtime 4/8 H.264E HD SDI High Definition DVR - Manual (Page 57)

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Figure 2-12
Please refer to the following sheet for detailed information.
1 Video input
2 Video output
3 Audio input
4 Audio output
5 RS232 port
6 Power button
7 Video SPOT output
8 Bidirectional talk input
9 Video VGA output
10 HDMI output
11 USB port
12 Network port
13 RS485 port
14 Power socket
15 Alarm input/alarm output/RS485 port
16 GND port
2.2.8 General 2U Series
This series DVR rear panel is shown as below. See Figure 2-13.
Please note the following figure is based on the 16-channel series product.
Figure 2-13
Please refer to the following sheet for detailed information.
1 GND port
2 Power input port
3 Power button
4 Fan