• 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 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 avoid damaging your system, be sure that the voltage selection switch (if provided) on the power
supply is set to match the power at your location:
- 115V, 60 Hz in most of North and South America and some Far Eastern countries such as South
Korea and Taiwan
- 100V, 50 Hz in eastern Japan and 100V, 60 Hz in western Japan
- 230V, 50 Hz in most of Europe, the Middle East, and the Far East
• Be sure that attached devices are electrically rated to operate with the power available in your location.
• Use only approved power cables. If you were not provided with a power cable for your system or for
any AC-powered option intended for your system, purchase a power cable approved for your country.
The power cable must be rated for the product and for the voltage and current marked on the product
electrical ratings label. The voltage and current rating of the cable must 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.
• The peripheral power 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 three-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 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 and national wiring rules.
Introduction
9
Managed Stackable Switch Series M4300
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