NEC VERSA P8510 - Manual (Page 84)

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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.