Allied Telesis AT-SBx31CFC960 - Manual (Page 183)

SwitchBlade x3106 Chassis Switch and AT-SBx31CFC960 Card Installation Guide
183
Figure 124. Installing the Grounding Wire
5. Connect the other end of the grounding wire to the building protective
earth.
Warning
When installing this equipment, always ensure that the power supply
ground connection is installed first and disconnected last.
 E11
Note
This system will work with a positive grounded or negative grounded
DC system.
 E13
Grounding
wire