Introduction 
 
 
3 
Figure 1-2 NVR Front Panel (HN300802xx/HN301602xx) 
 
Table 1-1 NVR Front Panel Description 
Name  Behavior  Definitions 
1.  Network uplink 
status/activity LED 
Blinking Green 
Data is being transmitted or 
received. 
OFF 
The Ethernet uplink is 
disconnected. 
2.  System status LED 
Constant Green  System ready. 
Blinking Green 
every 1 second 
Updating firmware or device 
pack. 
Constant Red 
1.  S.M.A.R.T.-related disk errors. 
2.  A configured HDD is missing. 
3.  HDD is full. Buzzer will also be 
sounded. When buzzer is 
turned off, LED will return 
normal. 
3.  Power status LED 
Solid Green  The NVR is powered on. 
OFF  The NVR is powered off. 
4.  USB port 
(HN300802xx/HN301602xx) 
   
Figure 1-3 NVR Back Panel (HN300401xx)