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Name
1–16
NO1–NO5
C1–C5
NC5
A
B
CTRL (CTRL 12
V)
P (+12 V)
RS-232
VGA
PoE PORTS
2.2.6 NVR41-4KS2/NVR41-P-4KS2/NVR41-8P-4KS2/NVR41-
Function
● There are four groups. The first group is from port 1 to
Alarm input port
1–16
● When your alarm input device is using external
Ground
Alarm input ground end.
● 5 groups of alarm output ports. (Group 1: port NO1–
Alarm output port
1–5
● NO: Normal open alarm output port.
● C: Alarm output public end.
●
RS485_A port. It is the cable A. You can connect to the
RS-485
control devices such as speed dome PTZ.
communication
RS485_B. It is the cable B. You can connect to the control
port
devices such as speed dome PTZ.
Controller 12 V power output. It is to
control the on-off alarm relay output. It
can be used to control the device alarm
—
output. At the same time, it can also be
used as the power input source of some
devices such as the alarm detector.
+12 V power output port. It can provide
the power to some peripheral devices
—
such as the camera or the alarm device.
Please note the supplying power shall
be below 1 A.
RS-232 debug
It is for general COM debug to configure IP address or
COM
transfer transparent COM data.
VGA video output
VGA video output port. Output analog video signal. It can
port
connect to the monitor to view analog video.
Built-in Switch. Support PoE or ePoE function.
For ePoE series product, port 1 to port 8 are the ePoE
—
ports. ePoE port supports 300 meters@100 Mbps, 800
meters@10 Mbps. Port 9 to port 16 are general PoE ports.
The 16 PoE series supports total 150 W.
32
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).
power, please make sure the device and the NVR have
the same ground.
C1, Group 2: port NO2–C2, Group 3: port NO3–C3,
Group 4: port NO4–C4, Group 5: port NO5, C5, NC5).
Output alarm signal to the alarm device. Please make
sure there is power to the external alarm device.
NC: Normal close alarm output port.
User's Manual
The two ports
serve as
another
group of
alarm output
ports.
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