General Precautions For Rack-Mountable Products - D-Link xStack DES-3800 Series User Manual

100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
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230 V/50 Hz in most of Europe, the Middle East, and the Far East
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–48 VDC for DC power supply unit on DES-3828DC DC only
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Also, be sure that attached devices are electrically rated to operate with the power available in
your location.
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Use only approved power cable(s). If you have not been provided with a power cable for your
system or for any AC-powered option intended for your system, purchase a power cable that is
approved for use in your country. The power cable must be rated for the product and for the volt-
age and current marked on the product's electrical ratings label. The voltage and current rating of
the cable should be greater than the ratings marked on the product.
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To help prevent electric shock, plug the system and peripheral power cables into properly
grounded electrical outlets. These cables are equipped with three-prong plugs to help ensure
proper grounding. Do not use adapter plugs or remove the grounding prong from a cable. If you
must use an extension cable, use a 3-wire cable with properly grounded plugs.
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Observe extension cable and power strip ratings. Make sure that the total ampere rating of all
products plugged into the extension cable or power strip does not exceed 80 percent of the ampere
ratings limit for the extension cable or power strip.
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To help protect your system from sudden, transient increases and decreases in electrical power,
use a surge suppressor, line conditioner, or uninterruptible power supply (UPS).
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Position system cables and power cables carefully; route cables so that they cannot be stepped on
or tripped over. Be sure that nothing rests on any cables.
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Do not modify power cables or plugs. Consult a licensed electrician or your power company for
site modifications. Always follow your local/national wiring rules.
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When connecting or disconnecting power to hot-pluggable power supplies, if offered with your
system, observe the following guidelines:
Install the power supply before connecting the power cable to the power supply.
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Unplug the power cable before removing the power supply.
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If the system has multiple sources of power, disconnect power from the system by
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unplugging all power cables from the power supplies.
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Move products with care; ensure that all casters and/or stabilizers are firmly connected to the sys-
tem. Avoid sudden stops and uneven surfaces.

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.
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Systems are considered to be components in a rack. Thus, "component" refers to any system as
well as to various peripherals or supporting hardware.
xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
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