Rut50m earth ground

If I’m powering the unit with the supplied adapter, which is plugged into a neutral bonded receptacle, do I need to use the earth ground screw and a bare wire to earth ground (the receptacle box) or is the unit earthed via the negative lead of the supplied adaptor?

Hello,

It seems this is a duplicated question’s thread. Please refer to the initial inquiry and answer to it on the topic here: RUT50m ground question - #3 by Martynas