ZyXEL Communications XS3800-28, User Manual, Page: 51 / 789

Chapter 3 Hardware Panels
XS3800-28 User’s Guide
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The grounding terminal of the server rack or on-site grounding terminal must also be grounded and
connected to the building’s main grounding electrode. Make sure the grounding terminal is connected
to the buildings grounding electrode and has an earth resistance of less than 10 ohms, or according to
your country’s electrical regulations.
Figure 23 Connecting to the Building’s Main Grounding Electrode
If you are uncertain that suitable grounding is available, contact the appropriate electrical inspection
authority or an electrician.
This device must be grounded. Do this before you make other
connections.
3.2.2 AC Power Connection
Note: Make sure you are using the correct power source as shown on the panel and that no
objects obstruct the airflow of the fans (located on the side of the unit).
The Switch uses two power supply modules, one of which is redundant, so if one power module fails the
system can operate on the remaining module.
Connecting the Power
Use the following procedures to connect the Switch to a power source after you have installed it in a
rack.
Note: Use the included power cord for the AC power connection.
1
Connect the female end of the power cord to the AC power socket.
2
Connect the other end of the cord to a power outlet.