The present invention refers to a support frame (1) for wall-mounting one or more electrical apparatuses, the frame comprising a frame body (2) that can be fixed to a wall and extending around an opening (5) defining a mounting seat suitable for receiving and holding one or more electrical apparatuses. The support frame (1) is characterised in that it also includes: —at least one optical source (7.1, 7.2) suitable for generating an optical signal; —an electrical circuit (20, 10) connected to said optical source (7.1, 7.2) to supply it with an electrical power supply signal, —means (16.1, 16.2, 16.3) for housing said electrical circuit (20, 10) and said source (7.1, 7.2), foreseen in said frame body (2), the frame body (2) allowing the propagation of at least one part of said optical signal towards the outside of said body.