Symbol 2729 from ISO 7000 - Title/Meaning: Machine or system module or unit, general Function/description: Indicates a device or equipment that is part of a system and that gives it certain functions or processes.
pay attention to orientation of symbolAdditional information: 
Generally used in combination with other symbol elements.
Own work using: iso.org/obp/graphics/grs/43fda825-214e-4312-a8eb-9c393e25a864 200.png
Vectorization:  Mrmw