D-Link DGS-3212SR User Manual page 8

– The power cable, extension cable, or plug is damaged.
– An object has fallen into the product.
– The product has been exposed to water.
– The product has been dropped or damaged.
– The product does not operate correctly when you follow the operating instructions.
•
Keep your system away from radiators and heat sources. Also, do not block cooling vents.
•
Do not spill food or liquids on your system components, and never operate the product in a wet
environment. If the system gets wet, see the appropriate section in your troubleshooting guide or contact
your trained service provider.
•
Do not push any objects into the openings of your system. Doing so can cause a 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 you are not sure of the type of power source required, consult your service provider or local power
company.
•
To help avoid damaging your system, be sure the voltage selection switch (if provided) on the power
supply is set to match the power available at your location:
– 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries such
as South Korea and Taiwan
– 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
– 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.
Safety Instructions (continued)
•
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 you must use an extension cable,
use a 3-wire cable with properly grounded plugs.
•
Observe the 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 your 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.
•
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.
•
When connecting or disconnecting power to hot-pluggable power supplies, if offered with your system,
observe the following guidelines:
D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch
viii