DGS-3630 Series Layer 3 Stackable Managed Switch Hardware Installation Guide 
65 
Safety/Sé curité  
Safety Instructions 
General Precautions for Rack-Mountable Products 
Protecting Against Electrostatic Discharge 
Safety Instructions 
Please pay careful attention to the following safety guidelines to ensure your own personal safety and to help protect 
your system from potential damage. 
 
Safety Cautions 
To greatly reduce the risk of physical injury, electrical shock, fire, and damage to equipment, observe the following 
precautions. 
 
Observe and follow service markings. 
  Do not attempt to service any product, except when it is explained in the system’s documentation. 
  Opening or removing covers, marked with a high voltage sign, may expose the user to electrical shock. 
  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: 
  Damage to the power cable, extension cable, or plug. 
  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 the operating instructions are correctly followed. 
 
General safety cautions: 
  Electrical Hazard: Only qualified personnel should perform installation procedures. 
Risques d’électrocution: Seul un personnel qualifié doit effectuer les procédures d'installation. 
  Before servicing, disconnect all power cords to remove power from the device. 
Avant l'entretien , debranchez tous les cordons d'alimentation pour couper l'alimentation de l'appareil. 
  Keep the system away from radiators and heat sources. Also, do not block cooling vents. 
  Do not spill food or liquids on system components, and never operate the product in a wet environment. If the 
system gets wet contact your trained service provider. 
  Do not push any objects into the openings of the system. Doing so can cause fire or electric shock by shorting 
out interior components. 
  Only use this product with approved equipment. 
  Allow the product to cool before removing the cover 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. 
  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 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.