Chapter 3 Hardware Panels
GS1920v2 Series User’s Guide
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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).
To connect power to the Switch, insert the female end of the power cord to the AC power receptacle 
on the rear panel. Connect the other end of the supplied power cord to a power outlet.
3.2.3  Power Connection
Note: Make sure you are using the correct power source and that no objects obstruct the 
airflow of the fans.
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.
Rear Panel Power Connection
Connect one end of the supplied power cord or power adapter to the power receptacle on the back 
of the Switch and the other end to the appropriate power source.
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.
Disconnecting the Power
The power input connectors can be disconnected from the power source individually.
1 Disconnect the power cord from the power outlet.
2 Disconnect the power cord from the AC power socket.