After completing the installation, please verify the following items:
There are  5~10cm  of  clearance  around  the sides of the  device  for ventilation and 
 
the air flow is adequate.
The voltage of the power supply meets the requirement of the input voltage of the device.
 
The power socket, device and rack are well grounded.
 
The device is correctly connected to other network devices.
 
Plug in the negative connector of the provided power cord into the power socket of the 
device, and the positive connector into a power outlet as the following figure shown.
Connecting to Power SupplyFigure 4-4 
Note: The gure is to illustrate the application and principle. The power plug you get 
from the package and the  socket in your  situation  will  comply with  the regulation in 
your country, so they may differ from the gure above.
After the device is powered on, it begins the Power-On Self-Test. A series of tests run 
automatically to ensure the device functions properly. During this time, its LED indica-
tors will respond as follows:
The Power LED lights on all the time.
 
After keeping off for  several seconds, the LED indicators of all the ports will flash 
 
momentarily and then turn off again after initialization.
The System LED indicator will flash, which represents a successful initialization.
 
Connection