Indicates a risk of electric shock. The discharge time of the stored
energy (represented in the gure by the letters XX), is provided on the
identication label.
DC
Direct Current
AC
Alternate current
With insulation transformer
Without insulation transformer
Positive pole of the input voltage (DC)
Negative pole of the input voltage (DC)
Indicates the centre of gravity of the equipment.
Indicates the requirement to wear acoustic protection devices in order to
prevent damage to hearing