Dahua XVR7416L - Page 209

196
Figure 2-74
The HCVR42XXAN-S3/52XXAN-S3/7216AN-S3/XVR42XXAN/52XXAN/7216AN rear
panel is shown as below. See Figure 2-75.
The following figure is based on the
HCVR4216AN-S3/5216AN-S3/XVR4216AN/XVR5216AN series product.
Figure 2-75
Please refer to the following sheet for detailed information.
SN
Icon
Name
Note
1
GND
Alarm input ground port.
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
VIDEO IN
Video input
port
Connect to analog camera, video input signal.