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 - Dahua NVR52-4KS2 Series User Manual

Name
A
B
CTRL (CTRL 12
V)
P (+12 V)
RS-232
VGA
PoE PORTS
2.2.7 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.
It is for general COM debug to configure IP address or
RS-232 debug 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.
Figure 2-66 Rear panel
37
User's Manual
The two ports serve
as another group
of alarm output
ports.