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DGS-1510 Series Gigabit Ethernet SmartPro Switch Hardware Installation Guide
Safety Instructions
Use the following safety guidelines to ensure your own personal safety and to help protect your
system from potential damage. Throughout this safety section, the caution icon (
indicate precautions that need to be reviewed and followed.
Safety Precautions
To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment observe the
following precautions:
• Observe and follow service markings.
• Do not service any product except as explained in the system documentation.
• Opening or removing covers that are marked with the triangular symbol with a lightning bolt
may expose the user to electrical shock.
o Only a trained service technician should service components inside these compartments.
• If any of the following conditions occur, unplug the product from the electrical outlet and replace
the part or contact your trained service provider:
o Damage to the power cable, extension cable, or plug.
o An object has fallen into the product.
o The product has been exposed to water.
o The product has been dropped or damaged.
o The product does not operate correctly when the operating instructions are correctly
• Keep your system away from radiators and heat sources. Also, do not block cooling vents.
• Do not push any objects into the openings of the system. Doing so can cause fire or electric
shock by shorting out interior components.
• Use the product only with approved equipment.
• Allow the product to cool before removing covers or touching internal components.
• Operate the product only from the type of external power source indicated on the electrical
ratings label. If unsure of the type of power source required, consult your service provider or
local power company.
• To help avoid damaging the system, be sure the voltage selection switch (if provided) on the
power supply is set to match the power available at the Switch's location:
o 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern
o 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
o 230 V/50 Hz in most of Europe, the Middle East, and the Far East
• Also, be sure that attached devices are electrically rated to operate with the power available in
your location.
• 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
voltage 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.
• 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
using an extension cable is necessary, use a 3-wire cable with properly grounded plugs.
• 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.
• To help protect the system from sudden, transient increases and decreases in electrical power,
use a surge suppressor, line conditioner, or uninterruptible power supply (UPS).
• 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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