Dahua XVR7416L - Page 211

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The HCVR4432L-S2 rear panel is shown as below. See Figure 2-77.
Figure 2-77
Please refer to the following sheet for detailed information.
SN
Icon
Name
Note
1
Power switch
Power on/off button.
2
RS-232
RS-232 debug COM.
It is for general COM debug to
configure IP address or
transfer transparent COM
data.
3
1～16
Alarm input port 1～16
 There are four groups.
The first group is from
port 1 to port 4, the
second group is from port
5 to port 8, the third
group is from 9 to 12, and
the fourth group is from
13 to 16. They are to
receive the signal from
the external alarm
source. 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～NO5
Alarm output port 1～5
 5 groups of alarm output
ports. (Group 1 ： port
C1～C5