Dahua NVR52-4KS2 Series User Manual page 83

No. Port Name
1 Power button
2 PoE port
3 eSATA port
4 HDMI port
5 VGA port
6 RS-232 port
Alarm input port
(1-16)
Alarm output port
(NO1-NO5, C1-C5,
NC5)
7
RS-485 port (A, B)
CTRL
Function
Turns on/off the NVR.
Built-in switch. It can provide power for IPC.
16 PoE ports: 1-8 are ePoE ports (support 300m @ 100M. 800m
●
@ 10M). 9-16 are regular PoE ports.
Device with 16 PoEs supports 150 W total power.
●
External SATA port. It can connect device with SATA port. You
need to jump the HDD when there is peripherally connected
HDD.
High definition audio and video signal output port. It transmits
uncompressed high definition video and multiple-channel audio
data to displays with HDMI port. The two HDMI ports support 2-
channel high definition HDMI output of different sources.
VGA video output port. Output analog video signal. It can
connect to the monitor to view analog video.
It is for general COM debugging to configure IP address and
transfer transparent COM data.
There are four groups: 1-4, 5-8, 9-12 and 13-16.
●
They receive signals from external alarm source. Alarm input
includes two types; NO (normal open) and NC (normal close).
When your alarm input device is using external power, make
●
sure the device and the NVR have the same GND.
Five groups of alarm output ports (Group 1: NO1-C1, Group 2:
●
NO2-C2, Group 3: NO3-C3, Group 4: NO4-C4, Group 5: NO5,
C5, NC5). Output alarm signal to the external alarm device.
Make sure power supply is available for the external alarm
device.
NO: Normal open alarm output port.
●
C: Alarm output public end.
●
NC: Normal close alarm output port.
●
GND. Alarm input ground port.
RS485_A port. Control cable A of the 485 device. It connects
●
external devices such as speed dome and PTZ.
RS485_B port. Control cable B of the 485 device. It connects
●
external devices such as speed dome and PTZ.
Controllable 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 alarm detector.
67
User's Manual
The two ports serve
as another group of
alarm output ports.