Symbol 5512 from IEC 60417 - Title/Meaning: System status display Function/description: To identify the control by which the status of apparatus connected to an interface bus can be displayed.
Additional information: 
Published in: Supplement M, 1994
Own work using: iso.org/obp/graphics/grs/9a33848a-ab5c-4e40-a4c3-b31e619cdc6d 200.png
Vectorization:  Mrmw