Dahua NVR2104-I2, User Manual

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Figure 2-81 Rear panel
No. Port Name Function
1 Power button Turns on/off the NVR.
2 PoE port
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.
3 eSATA port
External SATA port. It can connect device with SATA port. You
need to jump the HDD when there is peripherally connected
HDD.
4 HDMI port
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.
5 VGA port
VGA video output port. Output analog video signal. It can
connect to the monitor to view analog video.
6 RS-232 port
It is for general COM debugging to configure IP address and
transfer transparent COM data.
7
Alarm input port
(1-16)
●
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.
Alarm output port
(NO1-NO5, C1-C5,
NC5)
●
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.
User's Manual
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