DES-3550 Layer 2
Fast Ethernet Switch User’s Guide
xii
•
After a component is inserted into the rack, carefully extend the rail into a locking
position, and then slide the component into the rack.
•
Do not overload the AC supply branch circuit that provides power to the rack. The
total rack load should not exceed 80 percent of the branch circuit rating.
•
Ensure that proper airflow is provided to components in the rack.
•
Do not step on or stand on any component when servicing other components in a rack.
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.
NOTE:
A qualified electrician must perform all connections to DC power
and to safety grounds. All electrical wiring must comply with applicable
local or national codes and practices.
CAUTION:
Never defeat the ground conductor or operate the equipment
in the absence of a suitably installed ground conductor. Contact the
appropriate electrical inspection authority or an electrician if you are
uncertain that suitable grounding is available.
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. 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.
Содержание DES-3550
Страница 1: ...D Link DES 3550 Managed 48 port 10 100Mbps and 2GE ports Layer 2 Ethernet Switch Manual...
Страница 33: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 33...
Страница 72: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 72 Figure 6 24 Bandwidth Settings and Port Bandwidth Table...
Страница 77: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 77 Figure 6 27 Port Security Settings window...
Страница 90: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 90 Figure 6 39 Lacp Port Settings and LACP Port Table...
Страница 107: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 107 Figure 6 58 802 1X Authenticator Settings window...
Страница 110: ...DES 3550 Layer 2 Fast Ethernet Switch User s Guide 110 Figure 6 60 802 1x Capability Settings and Table window...