AGI Security SYS-HC0451 HDCVI DVR User Manual - Manual (Page 37)

HDCVI Standalone DVR User’s Manual
28
SN Icon Name Function
6 VIDEO IN
Video input port Connect to analog camera to
input video signal.
7
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 port9 to
port 12, the fourth group
is from port13 to port 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
NVR have the same
ground.
NO1～NO5
Alarm output port 1～5
 5 groups of alarm output
ports. (Group 1 ： port
NO1 ～ C1,Group 2:port
NO2 ～ C2,Group 3:port
NO3～C3. 4:port NO4～
C4. 5:port NO5 ～
C5.).Output alarm signal
to the alarm device.
Please make sure there
is power to the external
alarm device.
 NO：Normal open alarm
output port.
 NC：Normal close alarm
output port.
 C：Alarm output public
end.
C1～C5
NC5
A
RS485 communication
port
RS485_A port. It is the cable
A. You can connect to the
control devices such as
speed dome PTZ.