DVI-OPT-220-Pro series  – User's Manual  2
Important Safety Instructions
Class I Apparatus Construction.
This equipment must be used with a mains power system with a 
protective earth connection. The third (earth) pin is a safety feature, 
do not bypass or disable it. The equipment should be operated only 
from the power source indicated on the product.
To disconnect the equipment safely from power, remove the power 
cord from the rear of the equipment, or from the power source. The 
MAINS plug is used as the disconnect device, the disconnect device 
shall remain readily operable.
There are no user-serviceable parts inside of the unit. Removal of the 
cover will expose dangerous voltages. To avoid personal injury, do not 
remove the cover. Do not operate the unit without the cover installed.
The appliance must be safely connected to multimedia systems. 
Follow instructions described in this manual.
Replacing the AC fuse
Unplug the AC power cord from the device. Locate the AC fuse on the 
rear panel. Replace only the AC fuse as indicated on the rear panel. 
Connect the power cord to the switcher and to the AC power source. 
Make sure the switcher is working properly.
Ventilation
For the correct ventilation and to avoid overheating ensure enough 
free space around the appliance. Do not cover the appliance, let the 
ventilation holes free and never block or bypass the ventilators (if any).
WARNING
To prevent injury, the apparatus is recommended to securely attach to 
The apparatus shall not be exposed to dripping or splashing and that 
be placed on the apparatus.
CAUTION AVIS
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE
Waste Electrical & Electronic Equipment 
WEEE
This marking shown on the product or its literature, 
indicates that it should not be disposed with other 
household wastes at the end of its working life. To 
prevent possible harm to the environment or human 
health from uncontrolled waste disposal, please 
separate this from other types of wastes and recycle it 
responsibly to promote the sustainable reuse of material 
resources. Household users should contact either the 
retailer where they purchased this product, or their local government 
            
environmentally safe recycling. Business users should contact their 
supplier and check the terms and conditions of the purchase contract. 
This product should not be mixed with other commercial wastes for 
disposal.
Caution: Laser product
INVISIBLE LASER RADIATION
AVOID DIRECT EYE EXPOSURE
CLASS 3R LASER PRODUCT
Radiated wavelengths:
778 nm, 800 nm, 825 nm, 850 nm
Output power <= 1mW
Classified by EN 60825-1:2008
Common Safety Symbols
Symbol Description
Alternating current
Protective conductor terminal
Caution, possibility of electric shock
Caution
Laser radiation