Dahua NVR4204-P-4KS2 User Manual page 89

Please refer to the following sheet for front panel button information.
SN Name
Power button
1
System
2
Indicator light
Alarm indicator light
3
Network
4
light
USB2.0 port
5
16 HDD slot
6
After you remove the front panel, you can see there are 16 HDDs. From the left to the right and from the
top to the bottom, it ranges from 1~4, 5~8, 6~12, 13~16. See Figure 2-15.
You can see there are two indicator light s on the HDD bracket.

The power indicator light is at the top. The light is yellow after you connected the device to the power.

The read-write indicator light is at the bottom. The blue light flashes when system is reading or
writing the data.
Icon
HDD
indicator
-
Figure 2-14
Press it once to turn on the device.
Press it for a long time to turn off the device (Usually
we do not recommend).
Press power button for a long time or pull out the
power cable may result in device auto restart.
The blue light flashes when system is reading or
writing the system HDD.
In the system HDD, there are device important
configuration file, factory default configuration file,
device initial boot up data.
The alarm indicator light becomes on once an alarm
occurred. It becomes on via the software detection.
The alarm includes local alarm, no disk and etc.
The network indicator light is blue and it flashes when
you connect the device to the network.
Connect to USB2.0 storage device, mouse, USB
burner and etc.
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Function
74