12 Safety
Refer to the instructions. This symbol indicates that it is mandatory to read the
documentation of the equipment.
Direct current. This symbol indicates the presence of a direct electrical current.
Alternating current. This symbol indicates the presence of an alternating
electrical current.
No isolation transformer. This symbol indicates that there is no isolation
transformer in the unit.
Protective ground terminal. This symbol indicates a terminal that is used to
connect the equipment to the protective electrical ground.