General Precautions For Rack-Mountable Products - D-Link DWS-3024 User Manual

D-Link Unified Access System User Manual

General Precautions for Rack-Mountable Products

Observe the following precautions for rack stability and safety. Also refer to the rack
installation documentation accompanying the system and the rack for specific caution
statements and procedures.
• Systems are considered to be components in a rack. Thus, "component" refers to any
system as well as to various peripherals or supporting hardware.
CAUTION:
• After installing system/components in a rack, never pull more than one component out of
the rack on its slide assemblies at one time. The weight of more than one extended
component could cause the rack to tip over and may result in serious injury.
• Before working on the rack, make sure that the stabilizers are secured to the rack,
extended to the floor, and that the full 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.
NOTE:
CAUTION:
CAUTION:
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Installing systems in a rack without the front and side stabilizers installed
could cause the rack to tip over, potentially resulting in bodily injury
under certain circumstances. Therefore, always install the stabilizers
before installing components in the rack.
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.
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.
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.