DGS-3100 Series Gigabit Stackable Managed Switch User Manual 
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CAUTION: The system chassis must be positively grounde
d to the rack cabinet frame. Do not 
attempt to connect power to the system until grounding cables are connected. Completed power 
and safety ground wiring must be inspected by a qualified electrical inspector. An energy hazard 
will exist if the safety ground cable is omitted or disconnected. 
 
Protecting Against Electrostatic Discharge 
Static electricity can harm delicate components inside your system. To prevent static damage, discharge static electricity 
from your body before you touch any of the electronic components, such as the microprocessor. You can do so by 
periodically touching an unpainted metal surface on the chassis. 
You can also take the following steps to prevent damage from electrostatic discharge (ESD): 
1.  When unpacking a static-sensitive component from its shipping carton, do not remove the 
component from the antistatic packing material until you are ready to install the component in 
your system. Just before unwrapping the antistatic packaging, be sure to discharge static 
electricity from your body. 
2.  When transporting a sensitive component, first place it in an antistatic container or packaging. 
3.  Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and 
workbench pads and an antistatic grounding strap. 
Battery Handling Reminder 
 
CAUTION: This is danger of explosion if the battery is incorrectly repla
ced. Replace only with the 
same or equivalent type recommended by the manufacturer. Discard used batteries according to 
the manufacturer's instructions.