Dahua NVR41 series User Manual

User's Manual
40
Name
Function
VIEDEO OUT
Video output port
CVBS output.
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 NVR have the same
ground.
GND
Alarm input ground port.
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, 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.
● NO: Normal open alarm output port.
● C: Alarm output public end.
● NC: Normal close alarm output port.
C1
～
C5
NC5
A
RS-485
communication port
RS485_A port. It is the cable A. You can
connect to the control devices such as speed
dome PTZ.
B
RS485_B.It is the cable B. You can connect
to the control devices such as speed dome
PTZ.
CTRL 12V
/
Controller 12V 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.
+12V
/
+12V 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 1A.
Network port
One 10M/100M/1000Mbps self-adaptive
Ethernet port. Connect to the network cable.
eSATA
eSATA port
External SATA port. It can connect to the
device of the SATA port. Please jump the
HDD when there is peripheral connected
HDD.

Dahua NVR41 series Specifications

General

Brand	Dahua
Model	NVR41 series
Category	Network Hardware
Language	English