NEC M380 User Manual

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101 
Connections and Remote Earth  
Protected Extra Low Voltage (PELV) 
To ensure the extra-low voltage integrity of the equipment, only connect equipment with 
mains-protected, electrically-compatible circuits to the external ports. 
Safety Extra Low Voltage (SELV) 
Each input and output of this product is classified as Safety Extra Low Voltage, except the 
modem, which is classified as TNV-3. 
Remote Earth 
To prevent electrical shocks, connect all local (individual office) notebooks and computer support 
equipment to the same electrical circuit of the building's wiring. If you are unsure, check the 
building's wiring to avoid remote earth conditions.
 
Building Supply 
Only connect the equipment to a building supply that is in accordance with current wiring 
regulations in your country.