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Name
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-
4KS2/L/NVR41-P-4KS2/L/NVR41-8P-4KS2/L/NVR21-S3/NVR21-P-
S3/NVR21-8P-S3
The NVR41-4KS2/NVR41-4KS2/L/NVR21-S3 series rear panel is shown as below.
The NVR41-P-4KS2/NVR41-P-4KS2/L series rear panel is shown as below.
Function
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@100Mbps, 800
meters@10Mbps. Port 9 to port 16 are general PoE ports.
The 16 PoE series supports total 150W.
Figure 2-50 Rear panel
28
User's Manual
The two ports
serve as
another
group of
alarm output
ports.
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