Dahua HCVR5104C Series - Page 200

187
Figure 2-72
The HCVR7208A-S2 products’ rear panel is shown as below. See Figure 2-73.
Figure 2-73
Please refer to the following sheet for detailed information.
SN
Icon
Name
Note
1
Power switch
Power on/off button.
2
1～8(16)
Alarm input
port 1～8(16)
 There are two types; NO (normal open)/NC
(normal close).
 When your alarm input device is using external
power, please make sure the device and the DVR
have the same ground.
NO1～NO3
Alarm output
port 1～3
 3 groups of alarm output ports. (Group 1：port
NO1～C1,Group 2:port NO2～C2,Group 3:port
NO3～C3）).Output alarm signal to the alarm
device. Please make sure there is power to the
external alarm device.
 NO：Normal open alarm output port.
 C：Alarm output public end.
C1～C3
3
VGA
VGA video
output
port
VGA video output port. Output analog video signal.
Can connect to the monitor to view ananlog video
output.
4
AUDIO IN
Audio input
port
Connect to audio input device such as speaker.