D-Link DES-1228/ME, User Manual, Page: 12 / 267

DES-1228/ME Layer 2 Metro Ethernet Managed Switch
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CAUTION : The system chassis must be positively grounded to the rack cabinet frame. Do not
attempt to connect power to the system until grounding cables are connected. A qualified electrical
inspector must inspect completed power and safety ground wiring. An energy hazard will exist if the
safety ground cable is omitted or disconnected.
CAUTION : Do not replace the battery with an incorrect type. The risk of explosion exists if the
replacement battery is not the correct lithium battery type. Dispose of used batteries according to the
instructions.
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, workbench pads and an
antistatic grounding strap.