User`s manual

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2 Front Panel and Rear Panel
2.1 Front Panel
2.1.1 NVR21/21-P/21-S/31/31-W/31-P/31-S Series
The NVR21/21-P/21-S front panel is shown as in Figure 2-1.
Figure 2-1
The NVR31/31-W/31-P/31-S front panel is shown as in Figure 2-2.
Figure 2-2
Please refer to the following sheet for detailed information.
Icon
Name
Function
Power indicator light
The blue light becomes on when the power
connection is OK.
Network status indicator
light
The blue light becomes on when the network
connection is abnormal or offline.
HDD status indictor light
The red light becomes on when HDD is abnormal or
HDD space is below the threshold.
USB
USB port. Connect to USB storage device, mouse
burner and etc.
2.1.2 NVR21H Series
The front panel is shown as in Figure 2-3.