5
Name
Function
Power input port
Input DC 12V/4A.
For K- NL304K/G product only.
Power input port
Switch power port. Input DC 48V/1.0A.
For K- NL304K/G product only.
MIC IN
Audio input port
Bidirectional talk input port. It is to receive the analog
audio signal output from the devices such as mike
phone, pickup.
MIC OUT
Audio output port
Audio output port. It is to output the analog audio
signal to the devices such as the sound box.
z
Bidirectional talk output.
z
Audio output on 1-window video monitor.
z
Audio output on 1-window video playback.
1
4
Alarm input port
1
4
z
There are two types; N (normal open)/C (normal
close).
z
When your alarm input device is using external
power, please make sure the device and the NVR
have the same ground.
N1, N2
Alarm output port
1
2
z
2 groups of alarm output ports. (Group 1
port
N1
C1,Group 2:port N2
C2).Output alarm
signal to the alarm device. Please make sure
there is power to the external alarm device.
z
N
Normal open alarm output port.
z
C
Alarm output public end.
C1, C2
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.
Network port
10M/100M/1000Mbps
self-adaptive Ethernet port.
Connect to the network cable.
USB2.0 port
USB2.0 port. Connect to mouse, USB storage device,
USB burner and etc.
RS-232
RS-232 debug
COM.
It is for general COM debug to configure IP address or
transfer transparent COM data.
HDMI
High Definition
Media Interface
High definition audio and video signal output port. It
transmits uncompressed high definition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.
VGA
VGA video
output port
VGA video output port. Output analog video signal. It
can connect to the monitor to view analog video.
PoE
PORTS
−
Bult-in Switch. Support PoE.
The 4 PoE series product supports total 48V 50W.
The 8 PoE series product supports total 48V 120W.
One PoE port max supports 15W.
