User's Manual

10
Figure 2-2
Please refer to the following sheet for front panel button information.
Icon Name Function
HDD HDD status indicator
light
The blue light is on when the HDD is malfunction.
NET Network status indicator
light
The blue light is on when the network connection is
abnormal.
POWER Power status indicator light The blue light is on when the power connection is
OK.
USB2.0 port Connect to peripheral USB 2.0 storage device,
mouse and etc.
2.2 Rear Panel
2.2.1 NVR21-W-4KS2 Series
The rear panel is shown as below. See Figure 2-3.