D-Link UNIFIED WIRED & WIRELESS ACCESS SYSTEM..., Руководство пользователя

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D-Link Unified Access System Software User Manual
02/15/2011
Page 20 Document 34CS3000-SWUM104-D10
weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined
multiple racks before working on the rack.
• Always load the rack from the bottom up, and load the heaviest item in the rack first.
• Make sure that the rack is level and stable before extending a component from the rack.
• Use caution when pressing the component rail release latches and sliding a component into or out of a rack; the slide
rails can pinch your fingers.
• 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 and workbench pads and an
antistatic grounding strap.
Battery Handling Reminder
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.
Caution! There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or
equivalent type of battery recommended by the manufacturer. Discard used batteries according to the
manufacturer’s instructions.