Dahua NVR21-4KS3 Series User Manual page 37

No. Name
1 Power button
System HDD indicator
2
light
3 Alarm indicator light
4 Network indicator light
5 USB port
6 Front panel lock
For general NVR616-4KS2/NVR616-XI/NVR50-EI series, the front panel is shown as below.
Figure 2-28 Front panel
Table 2-13 Icons
Function
Press it once to turn on the device.
Press it for a long time to turn off the device.
● We do not recommend you turn off the device in
this way.
● Press power button for a long time or pull out
the power cable might result in device auto
restart.
The blue light becomes on after system booted up
properly.
In the system HDD, there are device important
configuration file, factory default configuration file,
and device initial boot up data.
The alarm indicator light becomes on once an alarm
occurred. It becomes on via the software detection.
The indicator light becomes on when there is a local
alarm.
The blue network indicator light is on after you
connected the device to the network.
—
—
17
User's Manual